me too my understanding of binary was the same as a caveman understanding vr now i my understanding of binary is the same as a pro cientist who studied his life away understanding fire
You are a bit misleading about how digital audio works: It is indeed sampled in discrete steps in both amplitude and time (at least in the most common system, pulse-code modulation), and for each PCM signal, there is precisely one analog signal corresponding to it that has frequency components below half the sample rate, by the Nyquist-Shannon sampling theorem; that is, if you band-limit an audio sample to some level above the limit of human hearing (a bit below 20kHz) and sample at twice that rate (as with CD audio, at 44.1kHz, is like this) and then convert back to analog, you will get that same band-limited signal. Now there is some error provided by the discrete volume steps, known as quantization error, but this too can be made imperceptible by means of a high-enough bit-depth (16 bits is fine, maybe 14 bits would have worked, the original proposal for CDs) and a suitable dither (so that the frequency components introduced by quantization error are more uniformly spread out, providing a "noise floor" in which no component is perceptibly loud).
Hello, sorry about the late reply. I'm not saying you're wrong (because you're not) but here's the issue: You introduced about 4 new dynamic concepts there, and probably 6 terms that most people are going to be caught off by. In order for me to explain what you just explained, i need to go into each one of those which not only results in a 30+ minute video, it overloads the viewer. I understand the annoyance with simplifying things for ease of access (which is one reason I have trouble making these videos) but keep in mind I can't keep things simple and accessable while explaining *every* piece of nuance. I don't have a semester, I have a 10 minute video, and i'm aiming at people who know *nothing* about the topic at hand. For comparison, when a first grade math teacher teaches math, he probably tells students that 5-8=0, because there is no number lower than 0. When in fact there are negative numbers, but he teaches that later because he doesn't want to overcomplicate things. I run into the same conundrum all the time. Furthermore one can always go deeper. If I were to explain everything you just talked about, is that considered incomplete because I didn't go into physical vibrations through earth's atmoshphere and the biology of the eardrum, and how sound is essentially an illusion the brain creates after one reacts to the other? The specifics are infinite and at some point i need to cut it off.
@@H3Vtux better let it, instead of doing it badly. and when the conclusion results in misleading information, there is no excuse. make shot videos with explanations wich are true and you are fine..
Wow, I really think this is the best explanation of analogue vs digital signals. Really good job with the analogy about the multiple light switches and the color spectrum. I finally get how analogue is continuous moving on a set gradient by only set increments, while digital can be customized into the most minute or miniscule settings possible.
Analog records do not have infinite resolution. There in a limit in the dynamic range and a limit in the frequency range and these can be converted to numbers.
Also make sure you brush on your knowledge of quarks and the plank constants because you'll be dividing them on a surface of a vinyl disk if you compare it with .. for example 24bit digital audio.
This video provides incorrect information regarding digital sound. Digital sound is mathematical recreated in perfect analogue waves, not like the digital representation at 4:44. This is a common mistake!
why does this have only 2.7K likes. This guy clearly cares about teaching and put a lot of focus into making these complicated concepts clear for beginners. I have never seen so much information be made so clear with these great analogies. More please!!!
I have checked two other videos trying to explain the topic to my friend. But they all missed the mark. This video is very clear to understand. Thanks!
I'm an electrical engineering student finding out my passion was in computer and electronics and I found it late, I'm already 4th year student. Now I'm bingeing some of videos about computers and electronics here at UA-cam university.
You're surely not an engineering student in 4th year if you don't see the obvious flaws in this video... We learn digital theory in undergrad level, should be pretty obvious... Here is a refresher by a real engineer: ua-cam.com/video/cIQ9IXSUzuM/v-deo.html
Brother thank you very much. I even searched for analog computers but didn't find any informative video like yours but you are best.. You 🥰🥰cleared my doubt in simple language👄💬this channel must have more subscribers
I felt like this video implied that analog systems have effectively infinite resolution, which is objectively false. Per dollar, digital systems tend to have dramatically higher resolutions than analog. So even though they're discreet (pixels), the discrete information is so much infitessimally smaller than the information of a similarly priced analog media that way more detail can be retrieved from digital. Also, pixels don't need to be square. And for music for example, the digital wave is just the slalem points through which a generated sine wave is swept, so it is as infinitely continuous on the analog end after the DAC as a pure analog audio signal. By dodging the issue of the superior resolution of digital systems per dollar for each media type, it leaves some very bad impressions of the practical performance advantages of digital media in almost every single way.
Are you sure about your first and last exclamation? Perhaps economics can justify the superiority of quality of one over the other at a specific price point, I won't disagree on that, but removing money from the question, which is better?
This subject pertains to me because I relish computer technology and depend on the computer a lot. It is nice of you to post Digital versus Analog. Your narration was very nice. I enjoy it very much.
OMG I've been watching videos lately talking about analog computers taking over, they didn't explain the difference so I searched and found your amazing explanation! 😊
You, Sir, have elucidated every point so precisely and depicted it in the most splendid, joyful way that I couldn't have learned anywhere. Thank you for making the sense instead of flinging the graphs!
Haha thanks man. This one seems to be a bit controversial in how I worded things but it's always flattering to know that teachers like my channel. I don't speak "kids these days" too well but that sounds like a compliment to me.
There's an argyment for saying 64 bit digital audio is smoother than analog audio, because with analog you get noise, which makes quiet sounds grainy; whereas 64 bit digital audio has no inherent noise, and the "blockiness" of 64 bit digital is less chunky than the noise in analog. And analog noise means analog isn't always more precise than digital.
Take, for example, a linear 100mm potentiometer with a perfect graphene contact surface. The structure of graphene repeats itself every 213nm (nano meter), shifted. Thats is smooth AF. on a 100mm long potentiometer this gives roughly 46948 discrete contact values. 16 transistors can represent 65536 discrete values. So ... yeah .. thats a thing. The signal delivery of a low quality DAC is more precise than the fanciest linear potentiometer never constructed. There are 64bit digital controllers out there, btw. Thats a 39291863495km long graphene potentiometer.... If my math is correct. Material used for potentiometers are much rougher, with a much higher grain-size than perfect graphene. Conversely, dynamic imperfections, wear and multiple energy states of electrons do have a multiplicative effect on the number of possible values that it can actually deliver. Further, if the grain-size of the pickup is any different than the contact surface, that is a couple of free multipliers provided the two grain sizes are not in a harmonic relationship. Industrial controllers, DACs and other digital control systems are mainly digital because they can revert to an exact state every single time reliably. Pots, ... well, some smaller ones, for example, are just simply incapable of controlling even something as large as a 1/2000 division. One can build a high precision control circuit using analog only, true. Time domain sensitive and feedback systems have these. Hell, arrange a couple of pots in parallel and you are halfway there. Some lab equipment I used back in uni had this. But for storage and post processing, for example, analog systems make no sense. Data is capable to represent a precision level which would equal to half a muon on an LP (i should do this calculation too). Information potentially exposed by analog systems is indeed close to infinite. Unusable, random information, that is. This "Random information" is still regularly emulated digitally in the music industry. Digital can be imperfect, analog can never be perfect. The Heisenberg uncertainty principle explains that quite clearly. Eventually this chaotic nature of the very small gives the illusion of ... infinite. But it is not. In fact it is quite coarse. Electricity does have a quanta. You can never subdivide that. To something abstract as a digital data point, you just add a bit. The last part was almost inspired. Digital data is an abstract representation. One of the quirks of abstracts is that their lower level can be scaled indefinitely .... we are conceptually comparing apples and elephants. But, I digress. "The greatest shortcoming of the human race is our inability to understand the exponential function"
Spot On! I thought using the light dimmer was a stretch then , as you [point out, his audio comparison does not have 16 bits or switches. This is such a bad video, but all the dumb people in the comments that are too stupid to know better!
I would not call them stupid. There are many people who make up their minds based on social pressure not on reality. Hell, I am willing to bet I also do that in many other domains. The difference is, I am actually very much into audio and love music with every fibre of my bone. So much so that i've spent 2 hours researching and analysing the geometric structure of graphene to come up with those numbers. The reality is that in the game of reproduction accuracy digital is not just several times better with cheap, available tech but tens of orders of magnitude better. But, illusions and falsehoods can ride at the edge of limitation of human (hearing in this case). It's just human.
Excellent video. Great video. Also, Hovhannes (Ivan) Abgari Adamian (Armenian: Հովհաննես Աբգարի Ադամյան; 5 February 1879 - 12 September 1932) was an Armenian engineer, an author of more than 20 inventions. The first experimental color television was shown in London in 1928 based on Adamian's tricolor principle, and he is recognized as one of the founders of color television.
Now explain practical limits. A 24 bit signal has more detail then a record could. A detail for example that a vinyl record cant physicslly hold more then what a 14 bit signal could. Or a 35mm film is approximately a 4k-8k image. Even analog has limitlations.
For audio, high resolution DSD can store more information than reel-to-reel tape. So since the granularity of the digital steps has reached a point of being imperceptible, digital has the potential to offer better sound quality than analog. But that is on paper, in a manner of speaking. High resolution digital audio must play back each sample with atomic-clock-like precision. If not, we hear jitter. Even if we do not hear the jitter, we do hear the jitter (we just don't realize that we hear the jitter. What do I mean? When you virtually eliminate the jitter, and do an A/B comparison to what you thought had no jitter to actually having no jitter, the difference in sound quality will be like a slap across your face. The music will blossom and sound real like you never imagined (assuming that the studio did a proper job with mixing and mastering the song -- with they rarely do). But eliminating jitter will make every song sound better, even ones screwed up by the clods in the recording studio. There are people that make very precise clocks for digital audio. Those clocks are anywhere from expensive to wildly expensive. I have heard some audio gear with such clocks. That is how I know the benefit of timing with digital audio playback. As to analog music... on paper (so to speak) it has a continuous signal. But the hardware that produces sound from that continuous signal is almost always not up to the job. Sure, it works. But any crappy analog system can produce sound. To get it to produce sound that convinces you that you are in the room with the band, you need an entirely different level of quality, analog equipment. When it comes to analog music, it is very difficult to align the hardware with precision. It is sort of like driving. You can turn your wheel continuously, but if you rub the curb, your analog ride will suffer. This was a very good video.
While all information in the video is correct. I have to point out that the way it was presented, may lead people into bad conclusions. If you saw this video please do not take away from it the idea that analog is "more precise" or "better" than digital. It is not. both are equivalent to each other and both are suseptible to measurement error during recording and reproduction alike. your eyes and ears also are imperfect when it comes to decoding visual or audio signals so as long as measurement errors for Digital or Analog methods are under the error of your own squshy bits then it will be impossible for you to find difference between them.
Great video. Thanks. Can you make a video that details how analog sound is recorded on a medium? Like vinal for example, how does the precise and infinite fluctuations in pitch get transferred onto a vinal.
Analogue isn't necessarily better than Digital though, since Analogue devices or Analogue media often tend to be just singular specifically designed pieces of media or information, a picture is just a picture, a picture camera can only do pictures and not motion pictures an analog book is just a book and a VHS tapes can only store videos and not music..... While digital devices can combine all of these and allow you much more than just that through a single device, since the binary code may be used to encode multiple formats of media and view them through a single device, I can both play this video and type this comment and share it online something I wouldn't be able to do on analogue device.
So, conceptually there’s a difference between analog and digital; but in practice, to an extreme degree, analog is the same as digital just with the Planck units being the de facto switches? And if so, would that mean analog is simply seen as a unary numeral system (base 1)? I’m way out of my depth here - I don’t even know if I’m asking a good question or if I’m just overthinking 😂
Still not sure I get why analog signals are so thoroughly associated with lower quality media, particularly visuals (although I guess I've heard people say records have a "warmer" sound and film grain is "richer" than digital). Is the reliability and repeatability paradoxically what makes it possible for digital video to look so much better than analog even though analog is technically "realer" in how continuous and physical it is? Like it would be much harder mechanically and more expensive to make an analog tv that has the crispness and definition of a digital one simply because all that complexity can be neatly "folded up" into binary bits hence you can have smaller screens and devices delivering higher resolution information in cheaper form factors compared to analog? Is the "fuzz" associated with analog tvs and radios actually a consequence of being a continuous physical signal? I'm old enough to remember turning dials on radios and if you went just a little to far the signal would get unintelligible.
Because the digital signal is cleaned by inserting it into a filter. However, analog carries much more detailed information as it is the direct signal itself without filtering. But since it is not filtered, it carries distortions with it. It is normal to be confused as this part is not explained in the video.
The key to why digital media looks/sounds better has a lot to do with how the content is stored. A pure analog audio system without storage (Just microphones, an amplifier and some headphones) will sound the best. But to store the audio there must be a carrier medium like magnetic tape or some form of disc. The desired audio recording is analog but the tape/disk and its movement itself contains imperfections that the amplifier of the playback device cannot distinguish from the intended and this noise is thus also "played". A digital system only has to interpret the "0"s and"1"s. The digital data can be weak or strong, no matter as long as they are recognized as a O or a 1. By not "counting" the unrelated noise of the surface or movement of the tape or disc, it will sound MUCH better than an analog tape or disc. Real sound IS analog and thus TECHNICALLY "pure" but modern digital storage allows for frequency response that exceeds human hearing. This all applies to video as well. Digital recording can also be duplicated perfectly, analog cannot (This is known as "generation loss"). As to broadcast TV or radio analog signals can get distorted by various forms of interference, this is a similar problem as the surface noise on an analog tape or disc. Digital also has the advantage of requiring less radio bandwidth. When we still had analog (NTSC) TV, My city had 8 broadcast TV stations. ( And I was only able to "get" 4 of them with an indoor antenna (rabbit ears). With digital broadcast TV (ATSC) I now get 72 channels using the SAME antenna! Going back to audio, Digital is cheaper by a WIDE margin. I can have DAYS of reel-to-reel quality audio stored on a micro SD card that cost about as much as 10 hours of blank cassettes! P.S. I'm 61 years old and an audio lover and musician, I went through YEARS of trying to have the BEST recorders and I have NOT gone back to analog recording since the Sony MiniDisc came along. Now I have an 8 channel digital recorder with a building mixer that costs 1/10 of what my last 4 channel reel-to-reel deck cost, and it's the size of a paperback novel. Me and my friends now have basically studio quality recordings wherever we decide to get together and "jam".
@@jamesslick4790 MP3 files are the most COMPRESSED and lowest quality format you can have for music. FLAC files may be the best in that field but their size is still far smaller than a CD so a CD will still sound better. CDs however do not even remotely have the frequency response that Vinyl has and is limited by resolution, Vinyl isn't. Real sound is NOT going to have a SMALLER frequency response than speculative sound! That is why you can throw as many SACDs with their 24 bit audio as much as you like or even a million bits and yet true audiophiles will agree that Analog is still more definitive. Digital by it's very nature is pure speculation with numbers and digits with none of the tangibility of the real world that Analog has with magnetic tape and other physical entities and processes. It automatically can not be better in any objective manner since one is interpretive, the other is real. That automatically exposes the idea that Digital perfectly duplicates, only with a copy of a copy or a fully digital source (Digital Tape does not count at all) can it be "perfect" but for all purposes it is anything but the truth. All of this goes exactly the same for movies as well. The only reproduction that is better than Vinyl is Reel to Reel (don't know about 8 Track), with high quality direct tape transfers that offers far better tape reproduction than even Cassette does and sometimes you can get copies of the Master Tape on top of that. You're pulling a big time troll when you say that you have reel to reel quality on your SD Card!
Wrong, the analog signal is not "richer" not "realer". People who like tube amp get a signal with added harmonic distortion, that's what they call "warmer"... Digital is unbeatable for fidelity... providing the recording quality and the rest of your sound system + room being true to the signal. True that very high quality recordings are a minority, we're in a stupid "loudness war" since a long time, it is just getting worst with time... And the Digital format can be more "abused" with higher compression and signal level than its analog counterpart. So sometimes yes, the analog format can sound better.
@@Pete-eb3vo You're wrong about FLAC, it's LOSSLESS and averaging 50% compression ratio, the CD won't "sound better"... You're wrong again with "however do not even remotely have the frequency response that Vinyl has and is limited by resolution", it's the opposite... Obviously, you're not an engineer and you have absolutely no clue about analog nor digital... Reel to reel tapes offers about 13 bits equivalent noise level, CD format brings you better than that... Vinyl is a poor media compared to CD. ua-cam.com/video/cIQ9IXSUzuM/v-deo.html
The description is technically inaccurate when it comes to audio. The actual waveform that comes out of a digital audio system is always 100% analog and smoothly continuous, and is also essentially a 100% perfect representation of the original analog waveform up to its maximum frequency response and above its noise floor. So in the case of a CD, what comes out is a basically perfect analog representation of all the sounds under 20KHz and above the -96dB noise floor. There are no stair steps or discrete jumps in the sound, and no differences from a perfect purely analog representation of the same sounds. (Normally it’s the purely analog version that changes, limits, distorts, or colors the sound more than the digital version.) The reason for this is the low-pass filter, which converts any stair-step shaped waveforms into pure, smoothly-connected sine waves with a maximum frequency of about half the sample rate. It’s easier to visualize this with an understanding of Fourier transforms (in which all complex waveforms, such as square waves, can be devolved to combinations of pure sine waves of various frequencies, amplitudes, and phases; to convert a square wave to a sine wave, just filter out all frequencies above its fundamental, which is what the low-pass filter in a digital audio system does to all waveforms just below their maximum frequency limit). As for the bit depth, the small discrete variations between least significant bits compared to the actual input value, and the quantization error that it causes, IS the noise floor, which is usually lower than the noise of most analog systems, and almost always well below the background noise level in any listening space.
Hi Mathew. Correct me if i'm misunderstanding but the low pass filter is still a "digitial recreation" or an imitation right? In the same way that an unsharp or sepia filter on digital images are, the end result may be more or less identical to the same creation from an analogue device(as far as the human eye/ear is able to discern) but there is still less information, or rather slightly less accurate information. The stair steps or "jumps" are not there in the final version but they're removed artificially by the computer going through and "guessing" what should be there rather than actually knowing for a fact what is/was there. Correct?
@@H3Vtux No, it’s a regular analog low-pass filter (both on A to D conversion, just before sampling, and on D to A, just after conversion back to analog). Some oversampling systems may use both a steep digital and shallower analog filter in combination though. What you’re talking about is interpolation, which is something different. In fact even sample rate conversion, if done correctly, is better than just the kind of guessing or averaging that’s normal in video interpolation, since given two samples, it can be mathematically determined via Fourier transforms which sine waves (frequency, amplitude, phase) make up the complex sounds sampled below the Nyquist frequency, and hence it is possible to precisely recreate those same sine waves at a higher or lower output sample rate using math (basically trigonometry - we know what the idealized sine wave looks like, it’s just a matter of calculating the amplitude at the desired points). Once low-pass filtered on output, this should produce the same analog output regardless of sample rate. This is to say that, below 20KHz and above -96dB, the analog output should be identical between a 16/44.1 CD and a 24/384 system (absent other differences in their electronics or filters or things like jitter), something generally confirmed by measurements of analog output signal or null tests where one of the signals is subtracted from the other, as well as blind listening tests. Differences in sound often result from the performance of analog components, such as phase issues caused by the very step brick-wall analog filters used. This is one of the main benefits of high sample rates or over sampling during AD or DA conversion, to allow a shallower analog filter with less pronounced phase effects (which basically delay some portions of the frequency response more than others). Everything you said was correct in terms of computer video or graphics, but doesn’t really translate accurately to digital audio.
Thanks Mathew save me typing all that. These videos are so miss leading on youtube. What he also avoids is the cost of these analog systems vs digital ! the comments is what is sad all these clowns believe the generalizations made in the video.
@@rods6405 I didn't mention cost because this was never meant to be a "which one is better" video (although as you pointed out many commenters have taken it as such). I just wanted to give a general overview of how they do what they do, and why some are better for other things than others are. I understand generalizations can cause problems, but try to understand without generalizations I end up with a 5 hour video.
@@rods6405 And you don't use any true counter arguments to back up your statements. Very typical of Digital shills who always live in the fantasy world that everything is defined by numbers and speculation like a robot.
If I get a DAC, will the NORMAL UA-cam music etc. that we get be converted to a superior kind of quality Music? If I install the DAC in between the TV and Home Theatre?
Worth noting that the accuracy claims are a bit overstaded because analog process are extremely vulnerable to noise and biases while digital is extremely resilient. Like sure a record might store an nearly infinitely precise signal but it doesn't mean it is accurate to the source sound.
Excellent….could you please explain scan lines in analogue camera…I mean what is meant by resolution when using 1980s analog cameras….why do they use that chart to determine resolution…
Incredible videos you have here! I love how you explain these things so simply! So digital is basically a representation and/or abstract version of analog? That's neat!
I don't agree with your statement, good digital is FAR more better than best analog in therms of what you can squeeze out of it in post production. The question is how big is the dynamics of the system and how you treat interferences in time domain. Blocks dose not matter, in 'Vinyl' you also have blocks of molecules. I have witness a lot of times that digital audio sounds better than a very good vinyl system. 30 bit color pictures, out of question, your eyes have far poorer resolution. When I examine old diapositives I can say, that if take with proper exposition, they are even stunning. That is for objective point of view. On the other hand, subjectively, distortions in analog audio systems (nonlinearity) or film camera (take Technicolor for example), can make the output, somehow more interesting to human beeing.
2:55 this makes an assumption about the precision of an analog device that does not usually hold up in practice. The argument is that analog devices have practically infinite precision when in reality they really don't. In practice, most digital controls and sensors are far more precise. The whole argument about digital and analog is misdirected to an argument about precision that actually has nothing to do with the method, analog or digital, and relies entirely on how finely the gauge or control is made. Digital things are regularly made with lasers and measurements in 16 bits, which means they are capable of 65,536 "grains" of precision. Does the analog dial on a light switch meaningfully turn with that level of precision? The whole purpose for digital measurement and control is to inexpensively increase precision over analog devices. If digital weren't capable of this increase in precision, it wouldn't have been pursued in the first place. Digital systems have other advantages as well, but precision was the factor that drove their development and adoption. The fundamental assumption that a mechanical rheostat, HiFi turntable, or 35mm film are more precise than good consumer grade digital equivalents is plainly and objectively false. If you zoom in on a film photograph you do not get infinitely smooth gradation. You eventually, rather quickly in fact, get to the grain of the film which is effectively the limit of it's precision. There are certainly very precise analog systems in existence. But at every level there is a better, more precise, more reliable digital alternative. Record players can play back frequencies above what a CD offers. But vinyl doesn't even come close to what 24bit 192k sampled digital can offer. Vinyl LPs for instance are roughly the equivalent of 14bit 96k digital resolution. (based on what I can find) That's pretty good, but it's not as PRECISE as high resolution digital lossless files.
To be clear, this video isn't wrong about what's possible. It just makes an assumption about what actually exists that doesn't hold up in practice. I would have reserved my comment above if the video had contained the statement, "While analog devices can do infinite levels of precision, that doesn't mean they do. That's dependent on the precision and materials with which they are made, just like digital."
@@AndyBHome 'Record players can play back frequencies above what a CD offers. But vinyl doesn't even come close to what 24bit 192k sampled digital can offer'. That was not what they were claiming back in the 80s and 90s. 'It just makes an assumption about what actually exists that doesn't hold up in practice'. You can make the exact same argument for when CDs were pushed in the 80s and 90s. The claim is that CD was this PERFECT format that had "perfect sound" and the best reproduction possible. There's only one catch: The problem is that most audiophiles exposed the claim that CD was better and thus they had to bring out SACD and others like DVD Audio and Blu Ray audio to compensate for the fact that CD was nowhere near as good of a reproduction as the media and the companies were claiming it was. And even with all the endless 24 bit editions, audiophiles generally agree that Analog still offers the superior reproduction, and the video above very much explains why. Digital is pure speculation with numbers and digits that is not offering real sound. Analog on the other hand is a tangible format based in the real world offering genuine sound and reproduction as a whole. You CANNOT be more precise with Digital when it is a format less based in the real world. That's like saying that Digital images of real life scenery is more accurate than the actual real life scenery with your own eyes. Very flawed "argument". Digital was pushed because since the format offered a easier and much less lengthy process, it was much cheaper than Analog and thus they had to promote it as if it was better for artistic reproduction. You might as well be saying that the 'Made in China' garbage that we get these days is better than the domestic produced products of the past. Same philosophy in many respects.
@AndyBHome Your claim on Film with the grain representing the limitation of the format is one of the most ignorant claims anybody could ever make. Grain is simply a part of the process of Film, it IS the film image. It doesn't matter even with 70MM epics like Ben Hur and 2001 A Space Odyssey, you will have the grain because it's part of the film itself. Even in speculative circles based in the Digital world, 35mm is considered to have 6K-8K resolution which is a flawed argument anyways because like Vinyl, it is not limited by resolution. But what does that tell you? Let's take it for granted. Nearly all cinemas play movies only in 2K and look like complete trash. But 35MM still offers SIGNIFICANTLY higher resolution than even the few expensive cinemas in major cities that play 4K. And just like true Audiophiles, no true Cinephile is ever going to take Digital over Film. Why do you think that there are so many movies out there that apply fake grain filters to remind people of Film, or even digitally apply color correction that reminisces of the past with beautiful formats like Technicolor? Because that's all they offer, Digital interpretations that will never be as good as the real thing. Make The Real Deal Standard Again. Not that it would exactly compensate for the hideous "entertainment" of today but i digress.
@AndyBHome, just a short addition to the last sentence. Vinyl signal to noise ratio is very dependent of the frequency. The best is about 60dB in midrange, and it degrade both ways reaching embarisingly low 15dB at the high end. That is the very reason why RIAA equalization is applied to both end of the process, leaving all comercial releases to about 11 bits.
Analog won't always be more precise. Whattya talkin' about? Let's say... if you're trying to hit a specific number dead on every time, the way you will do that is only with digitality. But with analog, even when you turn that knob to a specific point, you're not gonna hit that exact number every time. Digital is _way_ more precise than analog at that.
This is a huge collection of severe misunderstandings. Analog is only as precise as you portray it in theory. In reality every analog system contains noise. So we can only become as precise as we can measure. Also in music, the values get effectively interpolated between sample points. So the wave coming out of your speaker is EXACTLY the same as the analog wave would be. There is a good reason why we switched to digital and that's because its superior to analog in every possible way, except for energy consumption.
@GermanTutorials You do realize that Digital by its very nature is ENTIRELY based on speculation with numbers and digits with none of the tangibility of the Analog world? You want to paint the advantages of Analog as theoretical and yet you are trying to defend Digital which is far more theoretical by its very nature. Very typical of some people today. They think everything is numbers and speculation like a bunch of flesh and blood A.I.
@@Pete-eb3vo You mean the same speculations with nubers and digits which make up all of analog electronics and physics as well? You know thats the beauty, the very same concepts from analog information processing applies to digital information precessing. The same math and logic is used to carefully design high fidelity devices. Its really not just speculations, these are very based and established theories, backed by infinitely many experimental evidences. You wouldnt believe how much theory is actually needed to create a device like a classical stereo tube amplifier and such. I think the problem is we tend to let feelings or emotions rule over fact and thats the problem in our wolrd. We should go back a step and appreciate the theoretical foundation our ancestors have build for us and advance it instead of ignoring evidence. And also whats really funny is that you write this butthurt comment on a through and through digital machine, in a through and through digital Internet. Digital has come to stay, even with Quantum computers and AI lol and analog will still have its place in the world. You might be interested in some groups which are working on analog ai devices, working only with current, no bits and bytes ;)
@@GermanTutorials Butthurt buddy? I do happen to be aware that Digital has its positives but don't try to convince that a speculative format is superior to a Analog when it comes to reproduction! A lot of movies are made with fake grain filters and certain Color correction to reminisce of when Film was shot on Film! They brought back Vinyl and now it has higher sales than CD in the physical realm because people missed its more true and organic sound, even if some of the modern digitally sourced records totally have some issues. Digital is also limited by resolution, Analog is not. Digital is pure speculation, Analog is tangible. Unlike a lot of people that masturbate over modern digital technology, i respect some of the foundation from our ancestors who created some excellent innovations. People who run around with their phones like a bunch of zombies couldn't care less. They also run around and think that meat can magically be made out of supposed "plant" but that's another conversation. Where exactly do you think Digits comes from? From the Digital signal, hence 'Digits'! So your automatically wrong when you claim that they both use the same mathematics. Seems like you have it the opposite: You are stimulated by feelings over facts and not very warm ones either. Stop getting enticed by the "New is always better" philosophy, that's what the Technocrat resume wants you to believe, including your modern 'Made in China' garbage that you wear everyday and use. You want to talk about butthurt, maybe more Germans should be butthurt about their awful government, the filthy European Union and the U.N as a whole but hey, i guess i am too close to home there and where i am is equally guilty and it's totally unrelated. 😊 Outside of usage on the Internet and a few other needs and hobbies, the Analog way of living should always come first.
Excellent! as a performing artists and educator this is excellent information. You should speak at a SAG rally!! They- we- really need your expertise right now as big corporate advertisement, Hollywood, etc is trying to replace humans with IA to write scripts, compose, and use digital images of actors for performances. Its not the real world!!
I like how you tricked me into understanding how binary works at the beginning.
true hahahah
Yes
@@YourChannel-r4v Plenty of old people understand it though.
me too my understanding of binary was the same as a caveman understanding vr now i my understanding of binary is the same as a pro cientist who studied his life away understanding fire
Same
This is the clearest explanation I have seen given before
I learn more on UA-cam than school. Good video.
I teach computer repairs. and this video saves me a lot of work in explaining this concept. This guy clearly is the best at what he does.
You are a bit misleading about how digital audio works: It is indeed sampled in discrete steps in both amplitude and time (at least in the most common system, pulse-code modulation), and for each PCM signal, there is precisely one analog signal corresponding to it that has frequency components below half the sample rate, by the Nyquist-Shannon sampling theorem; that is, if you band-limit an audio sample to some level above the limit of human hearing (a bit below 20kHz) and sample at twice that rate (as with CD audio, at 44.1kHz, is like this) and then convert back to analog, you will get that same band-limited signal.
Now there is some error provided by the discrete volume steps, known as quantization error, but this too can be made imperceptible by means of a high-enough bit-depth (16 bits is fine, maybe 14 bits would have worked, the original proposal for CDs) and a suitable dither (so that the frequency components introduced by quantization error are more uniformly spread out, providing a "noise floor" in which no component is perceptibly loud).
Spot On ! This video is terrible!
Hello, sorry about the late reply.
I'm not saying you're wrong (because you're not) but here's the issue: You introduced about 4 new dynamic concepts there, and probably 6 terms that most people are going to be caught off by.
In order for me to explain what you just explained, i need to go into each one of those which not only results in a 30+ minute video, it overloads the viewer.
I understand the annoyance with simplifying things for ease of access (which is one reason I have trouble making these videos) but keep in mind I can't keep things simple and accessable while explaining *every* piece of nuance. I don't have a semester, I have a 10 minute video, and i'm aiming at people who know *nothing* about the topic at hand.
For comparison, when a first grade math teacher teaches math, he probably tells students that 5-8=0, because there is no number lower than 0. When in fact there are negative numbers, but he teaches that later because he doesn't want to overcomplicate things. I run into the same conundrum all the time.
Furthermore one can always go deeper. If I were to explain everything you just talked about, is that considered incomplete because I didn't go into physical vibrations through earth's atmoshphere and the biology of the eardrum, and how sound is essentially an illusion the brain creates after one reacts to the other? The specifics are infinite and at some point i need to cut it off.
@@H3Vtux better let it, instead of doing it badly. and when the conclusion results in misleading information, there is no excuse. make shot videos with explanations wich are true and you are fine..
@@NSBRec So much! The real stuff here by Monty Montgomery, an engineer who knows what he's talking about: ua-cam.com/video/cIQ9IXSUzuM/v-deo.html
@@NSBRec you fking nerds living in your bubbles😂 go make one of your deep dive explanation video and get that 3 view counts
Wow, I really think this is the best explanation of analogue vs digital signals. Really good job with the analogy about the multiple light switches and the color spectrum. I finally get how analogue is continuous moving on a set gradient by only set increments, while digital can be customized into the most minute or miniscule settings possible.
I learned so much with your video that 15 years of working with computer didn't. please keep up the good work
Analog records do not have infinite resolution. There in a limit in the dynamic range and a limit in the frequency range and these can be converted to numbers.
Yeah. It doesn't apply to audio because of how good digital to analogue converters are these days
Best and easiest educational video to digest that I've ever seen.
I was pleasing to watch, thanks.
Simple explanation and good enough for most. Adding in other factors is where it gets tricky and let's not forget PDM...
Really nice explanation. I will definetely use it in my IT class, thank you.
It's always amazing to know people are using these for their classes, and the exposure helps tremendously. So thank you!
Also make sure you brush on your knowledge of quarks and the plank constants because you'll be dividing them on a surface of a vinyl disk if you compare it with .. for example 24bit digital audio.
This video provides incorrect information regarding digital sound.
Digital sound is mathematical recreated in perfect analogue waves, not like the digital representation at 4:44.
This is a common mistake!
why does this have only 2.7K likes. This guy clearly cares about teaching and put a lot of focus into making these complicated concepts clear for beginners. I have never seen so much information be made so clear with these great analogies. More please!!!
Because its mostly BS! Read all the negative comments from technical people!
I have checked two other videos trying to explain the topic to my friend. But they all missed the mark. This video is very clear to understand. Thanks!
From someone fascinated with computers and electronics for most of my life this is a brilliantly informative video and very well explained. Thanks!
I'm an electrical engineering student finding out my passion was in computer and electronics and I found it late, I'm already 4th year student. Now I'm bingeing some of videos about computers and electronics here at UA-cam university.
You're surely not an engineering student in 4th year if you don't see the obvious flaws in this video... We learn digital theory in undergrad level, should be pretty obvious... Here is a refresher by a real engineer: ua-cam.com/video/cIQ9IXSUzuM/v-deo.html
@@guyboisvert66 our curriculum is different here in the philippines we are focus on electrical and powersystem only.
Wow, that was a very good, clear and easy way of explanation to Digital and analogue differences. appreciated
Brother thank you very much. I even searched for analog computers but didn't find any informative video like yours but you are best.. You 🥰🥰cleared my doubt in simple language👄💬this channel must have more subscribers
I felt like this video implied that analog systems have effectively infinite resolution, which is objectively false. Per dollar, digital systems tend to have dramatically higher resolutions than analog. So even though they're discreet (pixels), the discrete information is so much infitessimally smaller than the information of a similarly priced analog media that way more detail can be retrieved from digital.
Also, pixels don't need to be square. And for music for example, the digital wave is just the slalem points through which a generated sine wave is swept, so it is as infinitely continuous on the analog end after the DAC as a pure analog audio signal.
By dodging the issue of the superior resolution of digital systems per dollar for each media type, it leaves some very bad impressions of the practical performance advantages of digital media in almost every single way.
Are you sure about your first and last exclamation? Perhaps economics can justify the superiority of quality of one over the other at a specific price point, I won't disagree on that, but removing money from the question, which is better?
Love this video. Been teaching for many years and this really gets to the endpoint.
This subject pertains to me because I relish computer technology and depend on the computer a lot. It is nice of you to post Digital versus Analog. Your narration was very nice. I enjoy it very much.
Watched a lot of videos but this one is the Best explanation by far.
OMG I've been watching videos lately talking about analog computers taking over, they didn't explain the difference so I searched and found your amazing explanation! 😊
Yes digital explanations are precise. We've been receiving analog explanations all our lives in school!
You, Sir, have elucidated every point so precisely and depicted it in the most splendid, joyful way that I couldn't have learned anywhere. Thank you for making the sense instead of flinging the graphs!
My 12yo students wanted me to comment “good banger video, man”. I think they liked it.
Haha thanks man. This one seems to be a bit controversial in how I worded things but it's always flattering to know that teachers like my channel. I don't speak "kids these days" too well but that sounds like a compliment to me.
Of course, on this video the gradients are all digital, but that's still a good representation of "analog" for the analogy.
I understood the concept so well. Your practical use cases were just so real.Thanks a lot
Thank you for making this kinda videos!
These are awesome 💫
There's an argyment for saying 64 bit digital audio is smoother than analog audio, because with analog you get noise, which makes quiet sounds grainy; whereas 64 bit digital audio has no inherent noise, and the "blockiness" of 64 bit digital is less chunky than the noise in analog. And analog noise means analog isn't always more precise than digital.
Take, for example, a linear 100mm potentiometer with a perfect graphene contact surface. The structure of graphene repeats itself every 213nm (nano meter), shifted. Thats is smooth AF. on a 100mm long potentiometer this gives roughly 46948 discrete contact values. 16 transistors can represent 65536 discrete values. So ... yeah .. thats a thing. The signal delivery of a low quality DAC is more precise than the fanciest linear potentiometer never constructed.
There are 64bit digital controllers out there, btw. Thats a 39291863495km long graphene potentiometer.... If my math is correct.
Material used for potentiometers are much rougher, with a much higher grain-size than perfect graphene. Conversely, dynamic imperfections, wear and multiple energy states of electrons do have a multiplicative effect on the number of possible values that it can actually deliver. Further, if the grain-size of the pickup is any different than the contact surface, that is a couple of free multipliers provided the two grain sizes are not in a harmonic relationship.
Industrial controllers, DACs and other digital control systems are mainly digital because they can revert to an exact state every single time reliably. Pots, ... well, some smaller ones, for example, are just simply incapable of controlling even something as large as a 1/2000 division.
One can build a high precision control circuit using analog only, true. Time domain sensitive and feedback systems have these. Hell, arrange a couple of pots in parallel and you are halfway there. Some lab equipment I used back in uni had this. But for storage and post processing, for example, analog systems make no sense. Data is capable to represent a precision level which would equal to half a muon on an LP (i should do this calculation too).
Information potentially exposed by analog systems is indeed close to infinite. Unusable, random information, that is. This "Random information" is still regularly emulated digitally in the music industry. Digital can be imperfect, analog can never be perfect. The Heisenberg uncertainty principle explains that quite clearly. Eventually this chaotic nature of the very small gives the illusion of ... infinite. But it is not. In fact it is quite coarse. Electricity does have a quanta. You can never subdivide that. To something abstract as a digital data point, you just add a bit.
The last part was almost inspired. Digital data is an abstract representation. One of the quirks of abstracts is that their lower level can be scaled indefinitely .... we are conceptually comparing apples and elephants. But, I digress.
"The greatest shortcoming of the human race is our inability to understand the exponential function"
Spot On! I thought using the light dimmer was a stretch then , as you [point out, his audio comparison does not have 16 bits or switches. This is such a bad video, but all the dumb people in the comments that are too stupid to know better!
I would not call them stupid. There are many people who make up their minds based on social pressure not on reality.
Hell, I am willing to bet I also do that in many other domains.
The difference is, I am actually very much into audio and love music with every fibre of my bone. So much so that i've spent 2 hours researching and analysing the geometric structure of graphene to come up with those numbers.
The reality is that in the game of reproduction accuracy digital is not just several times better with cheap, available tech but tens of orders of magnitude better. But, illusions and falsehoods can ride at the edge of limitation of human (hearing in this case). It's just human.
Excellent video. Great video. Also, Hovhannes (Ivan) Abgari Adamian (Armenian: Հովհաննես Աբգարի Ադամյան; 5 February 1879 - 12 September 1932) was an Armenian engineer, an author of more than 20 inventions. The first experimental color television was shown in London in 1928 based on Adamian's tricolor principle, and he is recognized as one of the founders of color television.
Now explain practical limits. A 24 bit signal has more detail then a record could. A detail for example that a vinyl record cant physicslly hold more then what a 14 bit signal could. Or a 35mm film is approximately a 4k-8k image. Even analog has limitlations.
This video is the excellent.
You deserve more view and subscribe.
Thank you! I had a lot of fun making this one.
I like this explanation of the two, well done!
Bro,thanks a bunch.This video really elucidates everything that's in my vague lecture notes 🙏😂
For audio, high resolution DSD can store more information than reel-to-reel tape.
So since the granularity of the digital steps has reached a point of being imperceptible, digital has the potential to offer better sound quality than analog. But that is on paper, in a manner of speaking.
High resolution digital audio must play back each sample with atomic-clock-like precision. If not, we hear jitter. Even if we do not hear the jitter, we do hear the jitter (we just don't realize that we hear the jitter. What do I mean?
When you virtually eliminate the jitter, and do an A/B comparison to what you thought had no jitter to actually having no jitter, the difference in sound quality will be like a slap across your face. The music will blossom and sound real like you never imagined (assuming that the studio did a proper job with mixing and mastering the song -- with they rarely do). But eliminating jitter will make every song sound better, even ones screwed up by the clods in the recording studio.
There are people that make very precise clocks for digital audio. Those clocks are anywhere from expensive to wildly expensive. I have heard some audio gear with such clocks. That is how I know the benefit of timing with digital audio playback.
As to analog music... on paper (so to speak) it has a continuous signal. But the hardware that produces sound from that continuous signal is almost always not up to the job. Sure, it works. But any crappy analog system can produce sound. To get it to produce sound that convinces you that you are in the room with the band, you need an entirely different level of quality, analog equipment.
When it comes to analog music, it is very difficult to align the hardware with precision. It is sort of like driving. You can turn your wheel continuously, but if you rub the curb, your analog ride will suffer.
This was a very good video.
I finally understood the concept hands down the best explanation
While all information in the video is correct. I have to point out that the way it was presented, may lead people into bad conclusions. If you saw this video please do not take away from it the idea that analog is "more precise" or "better" than digital. It is not. both are equivalent to each other and both are suseptible to measurement error during recording and reproduction alike. your eyes and ears also are imperfect when it comes to decoding visual or audio signals so as long as measurement errors for Digital or Analog methods are under the error of your own squshy bits then it will be impossible for you to find difference between them.
*This video was helpful for my exam.*
Loved the video, a great analogy! Helps me with classes, and I just love learning this stuff. Thanks, man!!
Great video. Thanks.
Can you make a video that details how analog sound is recorded on a medium? Like vinal for example, how does the precise and infinite fluctuations in pitch get transferred onto a vinal.
dude, that was awesome, what an incredible explanation, it was very clear and easy to understand for a beginner like me, thank you
Excellent video. I wish that my teachers in school could've taught us like this. 😅
your explanation lighted up my mind! thank you so much! ♡
Analogue isn't necessarily better than Digital though, since Analogue devices or Analogue media often tend to be just singular specifically designed pieces of media or information, a picture is just a picture, a picture camera can only do pictures and not motion pictures an analog book is just a book and a VHS tapes can only store videos and not music..... While digital devices can combine all of these and allow you much more than just that through a single device, since the binary code may be used to encode multiple formats of media and view them through a single device, I can both play this video and type this comment and share it online something I wouldn't be able to do on analogue device.
The explanation is on point!!!!! Very specific just like digital! hahhaha thank u for this!!!
Thanks!
Could you do a video explaining the basic idea behind quantum computing?
Great Video Sir, My Respect to your clear explanation
is it possible to make a hybrid digital+analog machine? where you basically only get the pros from both?
That is what we have had for a long time, currently. The Compact Disc.
So, conceptually there’s a difference between analog and digital; but in practice, to an extreme degree, analog is the same as digital just with the Planck units being the de facto switches? And if so, would that mean analog is simply seen as a unary numeral system (base 1)?
I’m way out of my depth here - I don’t even know if I’m asking a good question or if I’m just overthinking 😂
Thank you for Clear explanation
Still not sure I get why analog signals are so thoroughly associated with lower quality media, particularly visuals (although I guess I've heard people say records have a "warmer" sound and film grain is "richer" than digital). Is the reliability and repeatability paradoxically what makes it possible for digital video to look so much better than analog even though analog is technically "realer" in how continuous and physical it is? Like it would be much harder mechanically and more expensive to make an analog tv that has the crispness and definition of a digital one simply because all that complexity can be neatly "folded up" into binary bits hence you can have smaller screens and devices delivering higher resolution information in cheaper form factors compared to analog? Is the "fuzz" associated with analog tvs and radios actually a consequence of being a continuous physical signal? I'm old enough to remember turning dials on radios and if you went just a little to far the signal would get unintelligible.
Because the digital signal is cleaned by inserting it into a filter. However, analog carries much more detailed information as it is the direct signal itself without filtering. But since it is not filtered, it carries distortions with it. It is normal to be confused as this part is not explained in the video.
The key to why digital media looks/sounds better has a lot to do with how the content is stored. A pure analog audio system without storage (Just microphones, an amplifier and some headphones) will sound the best. But to store the audio there must be a carrier medium like magnetic tape or some form of disc. The desired audio recording is analog but the tape/disk and its movement itself contains imperfections that the amplifier of the playback device cannot distinguish from the intended and this noise is thus also "played". A digital system only has to interpret the "0"s and"1"s. The digital data can be weak or strong, no matter as long as they are recognized as a O or a 1. By not "counting" the unrelated noise of the surface or movement of the tape or disc, it will sound MUCH better than an analog tape or disc. Real sound IS analog and thus TECHNICALLY "pure" but modern digital storage allows for frequency response that exceeds human hearing. This all applies to video as well. Digital recording can also be duplicated perfectly, analog cannot (This is known as "generation loss"). As to broadcast TV or radio analog signals can get distorted by various forms of interference, this is a similar problem as the surface noise on an analog tape or disc. Digital also has the advantage of requiring less radio bandwidth. When we still had analog (NTSC) TV, My city had 8 broadcast TV stations. ( And I was only able to "get" 4 of them with an indoor antenna (rabbit ears). With digital broadcast TV (ATSC) I now get 72 channels using the SAME antenna! Going back to audio, Digital is cheaper by a WIDE margin. I can have DAYS of reel-to-reel quality audio stored on a micro SD card that cost about as much as 10 hours of blank cassettes! P.S. I'm 61 years old and an audio lover and musician, I went through YEARS of trying to have the BEST recorders and I have NOT gone back to analog recording since the Sony MiniDisc came along. Now I have an 8 channel digital recorder with a building mixer that costs 1/10 of what my last 4 channel reel-to-reel deck cost, and it's the size of a paperback novel. Me and my friends now have basically studio quality recordings wherever we decide to get together and "jam".
@@jamesslick4790 MP3 files are the most COMPRESSED and lowest quality format you can have for music. FLAC files may be the best in that field but their size is still far smaller than a CD so a CD will still sound better. CDs however do not even remotely have the frequency response that Vinyl has and is limited by resolution, Vinyl isn't. Real sound is NOT going to have a SMALLER frequency response than speculative sound! That is why you can throw as many SACDs with their 24 bit audio as much as you like or even a million bits and yet true audiophiles will agree that Analog is still more definitive.
Digital by it's very nature is pure speculation with numbers and digits with none of the tangibility of the real world that Analog has with magnetic tape and other physical entities and processes. It automatically can not be better in any objective manner since one is interpretive, the other is real. That automatically exposes the idea that Digital perfectly duplicates, only with a copy of a copy or a fully digital source (Digital Tape does not count at all) can it be "perfect" but for all purposes it is anything but the truth. All of this goes exactly the same for movies as well.
The only reproduction that is better than Vinyl is Reel to Reel (don't know about 8 Track), with high quality direct tape transfers that offers far better tape reproduction than even Cassette does and sometimes you can get copies of the Master Tape on top of that. You're pulling a big time troll when you say that you have reel to reel quality on your SD Card!
Wrong, the analog signal is not "richer" not "realer". People who like tube amp get a signal with added harmonic distortion, that's what they call "warmer"... Digital is unbeatable for fidelity... providing the recording quality and the rest of your sound system + room being true to the signal. True that very high quality recordings are a minority, we're in a stupid "loudness war" since a long time, it is just getting worst with time... And the Digital format can be more "abused" with higher compression and signal level than its analog counterpart. So sometimes yes, the analog format can sound better.
@@Pete-eb3vo You're wrong about FLAC, it's LOSSLESS and averaging 50% compression ratio, the CD won't "sound better"... You're wrong again with "however do not even remotely have the frequency response that Vinyl has and is limited by resolution", it's the opposite... Obviously, you're not an engineer and you have absolutely no clue about analog nor digital... Reel to reel tapes offers about 13 bits equivalent noise level, CD format brings you better than that... Vinyl is a poor media compared to CD. ua-cam.com/video/cIQ9IXSUzuM/v-deo.html
The description is technically inaccurate when it comes to audio. The actual waveform that comes out of a digital audio system is always 100% analog and smoothly continuous, and is also essentially a 100% perfect representation of the original analog waveform up to its maximum frequency response and above its noise floor. So in the case of a CD, what comes out is a basically perfect analog representation of all the sounds under 20KHz and above the -96dB noise floor. There are no stair steps or discrete jumps in the sound, and no differences from a perfect purely analog representation of the same sounds. (Normally it’s the purely analog version that changes, limits, distorts, or colors the sound more than the digital version.) The reason for this is the low-pass filter, which converts any stair-step shaped waveforms into pure, smoothly-connected sine waves with a maximum frequency of about half the sample rate. It’s easier to visualize this with an understanding of Fourier transforms (in which all complex waveforms, such as square waves, can be devolved to combinations of pure sine waves of various frequencies, amplitudes, and phases; to convert a square wave to a sine wave, just filter out all frequencies above its fundamental, which is what the low-pass filter in a digital audio system does to all waveforms just below their maximum frequency limit). As for the bit depth, the small discrete variations between least significant bits compared to the actual input value, and the quantization error that it causes, IS the noise floor, which is usually lower than the noise of most analog systems, and almost always well below the background noise level in any listening space.
Hi Mathew.
Correct me if i'm misunderstanding but the low pass filter is still a "digitial recreation" or an imitation right? In the same way that an unsharp or sepia filter on digital images are, the end result may be more or less identical to the same creation from an analogue device(as far as the human eye/ear is able to discern) but there is still less information, or rather slightly less accurate information. The stair steps or "jumps" are not there in the final version but they're removed artificially by the computer going through and "guessing" what should be there rather than actually knowing for a fact what is/was there. Correct?
@@H3Vtux No, it’s a regular analog low-pass filter (both on A to D conversion, just before sampling, and on D to A, just after conversion back to analog).
Some oversampling systems may use both a steep digital and shallower analog filter in combination though.
What you’re talking about is interpolation, which is something different. In fact even sample rate conversion, if done correctly, is better than just the kind of guessing or averaging that’s normal in video interpolation, since given two samples, it can be mathematically determined via Fourier transforms which sine waves (frequency, amplitude, phase) make up the complex sounds sampled below the Nyquist frequency, and hence it is possible to precisely recreate those same sine waves at a higher or lower output sample rate using math (basically trigonometry - we know what the idealized sine wave looks like, it’s just a matter of calculating the amplitude at the desired points).
Once low-pass filtered on output, this should produce the same analog output regardless of sample rate. This is to say that, below 20KHz and above -96dB, the analog output should be identical between a 16/44.1 CD and a 24/384 system (absent other differences in their electronics or filters or things like jitter), something generally confirmed by measurements of analog output signal or null tests where one of the signals is subtracted from the other, as well as blind listening tests.
Differences in sound often result from the performance of analog components, such as phase issues caused by the very step brick-wall analog filters used. This is one of the main benefits of high sample rates or over sampling during AD or DA conversion, to allow a shallower analog filter with less pronounced phase effects (which basically delay some portions of the frequency response more than others).
Everything you said was correct in terms of computer video or graphics, but doesn’t really translate accurately to digital audio.
Thanks Mathew save me typing all that. These videos are so miss leading on youtube. What he also avoids is the cost of these analog systems vs digital ! the comments is what is sad all these clowns believe the generalizations made in the video.
@@rods6405 I didn't mention cost because this was never meant to be a "which one is better" video (although as you pointed out many commenters have taken it as such). I just wanted to give a general overview of how they do what they do, and why some are better for other things than others are.
I understand generalizations can cause problems, but try to understand without generalizations I end up with a 5 hour video.
@@rods6405 And you don't use any true counter arguments to back up your statements. Very typical of Digital shills who always live in the fantasy world that everything is defined by numbers and speculation like a robot.
I'm going to put in extra light switches in each room now. Thanks!
You always make it so simple. TY
This is tremendously helpful, thank you so much
the gradient comparison is soooo good! Learnt a lot! Thank you!!!
very informative, thank you for sharing your knowledge
If I get a DAC, will the NORMAL UA-cam music etc. that we get be converted to a superior kind of quality Music? If I install the DAC in between the TV and Home Theatre?
Worth noting that the accuracy claims are a bit overstaded because analog process are extremely vulnerable to noise and biases while digital is extremely resilient.
Like sure a record might store an nearly infinitely precise signal but it doesn't mean it is accurate to the source sound.
Very helpful video, thanks.
Excellent….could you please explain scan lines in analogue camera…I mean what is meant by resolution when using 1980s analog cameras….why do they use that chart to determine resolution…
OMG 😲
Exactly what I've been trying to say, but actually useful 😅
He's back with a bang!
it was soo cool every information that i thought was not important about computer he explained them to me :)
great explanation, thanks!
Thanks for your explanation.. As for me i like analogue watches lather digital..
This video is just brilliant, thanks a lot!
So, help me understand, essentially the difference is about the method of information/data/signal capture and output?
Fantastic video as always
Incredible videos you have here! I love how you explain these things so simply!
So digital is basically a representation and/or abstract version of analog? That's neat!
You are very underrated! SUBBED
Perfect animation and perfect explanation
Analog signals are those can have anything continues but digital signals can have only 01 in discreet wave
Crap 16 bit audio can have 65536 discrete values, levels etc
This is a great explanation. Thanks!
Pls more videos
really great explained
Clear as day and night but I like dusk and dawn.
I don't agree with your statement, good digital is FAR more better than best analog in therms of what you can squeeze out of it in post production. The question is how big is the dynamics of the system and how you treat interferences in time domain. Blocks dose not matter, in 'Vinyl' you also have blocks of molecules. I have witness a lot of times that digital audio sounds better than a very good vinyl system. 30 bit color pictures, out of question, your eyes have far poorer resolution. When I examine old diapositives I can say, that if take with proper exposition, they are even stunning. That is for objective point of view. On the other hand, subjectively, distortions in analog audio systems (nonlinearity) or film camera (take Technicolor for example), can make the output, somehow more interesting to human beeing.
But you completely ignored signal to noise ratio and dynamic range. So it's not true.
Extremely clear, great vid
2:55 this makes an assumption about the precision of an analog device that does not usually hold up in practice. The argument is that analog devices have practically infinite precision when in reality they really don't. In practice, most digital controls and sensors are far more precise. The whole argument about digital and analog is misdirected to an argument about precision that actually has nothing to do with the method, analog or digital, and relies entirely on how finely the gauge or control is made. Digital things are regularly made with lasers and measurements in 16 bits, which means they are capable of 65,536 "grains" of precision. Does the analog dial on a light switch meaningfully turn with that level of precision? The whole purpose for digital measurement and control is to inexpensively increase precision over analog devices. If digital weren't capable of this increase in precision, it wouldn't have been pursued in the first place. Digital systems have other advantages as well, but precision was the factor that drove their development and adoption. The fundamental assumption that a mechanical rheostat, HiFi turntable, or 35mm film are more precise than good consumer grade digital equivalents is plainly and objectively false. If you zoom in on a film photograph you do not get infinitely smooth gradation. You eventually, rather quickly in fact, get to the grain of the film which is effectively the limit of it's precision. There are certainly very precise analog systems in existence. But at every level there is a better, more precise, more reliable digital alternative. Record players can play back frequencies above what a CD offers. But vinyl doesn't even come close to what 24bit 192k sampled digital can offer. Vinyl LPs for instance are roughly the equivalent of 14bit 96k digital resolution. (based on what I can find) That's pretty good, but it's not as PRECISE as high resolution digital lossless files.
To be clear, this video isn't wrong about what's possible. It just makes an assumption about what actually exists that doesn't hold up in practice. I would have reserved my comment above if the video had contained the statement, "While analog devices can do infinite levels of precision, that doesn't mean they do. That's dependent on the precision and materials with which they are made, just like digital."
@@AndyBHome 'Record players can play back frequencies above what a CD offers. But vinyl doesn't even come close to what 24bit 192k sampled digital can offer'. That was not what they were claiming back in the 80s and 90s. 'It just makes an assumption about what actually exists that doesn't hold up in practice'. You can make the exact same argument for when CDs were pushed in the 80s and 90s.
The claim is that CD was this PERFECT format that had "perfect sound" and the best reproduction possible. There's only one catch: The problem is that most audiophiles exposed the claim that CD was better and thus they had to bring out SACD and others like DVD Audio and Blu Ray audio to compensate for the fact that CD was nowhere near as good of a reproduction as the media and the companies were claiming it was.
And even with all the endless 24 bit editions, audiophiles generally agree that Analog still offers the superior reproduction, and the video above very much explains why. Digital is pure speculation with numbers and digits that is not offering real sound. Analog on the other hand is a tangible format based in the real world offering genuine sound and reproduction as a whole. You CANNOT be more precise with Digital when it is a format less based in the real world. That's like saying that Digital images of real life scenery is more accurate than the actual real life scenery with your own eyes. Very flawed "argument".
Digital was pushed because since the format offered a easier and much less lengthy process, it was much cheaper than Analog and thus they had to promote it as if it was better for artistic reproduction. You might as well be saying that the 'Made in China' garbage that we get these days is better than the domestic produced products of the past. Same philosophy in many respects.
@AndyBHome Your claim on Film with the grain representing the limitation of the format is one of the most ignorant claims anybody could ever make. Grain is simply a part of the process of Film, it IS the film image. It doesn't matter even with 70MM epics like Ben Hur and 2001 A Space Odyssey, you will have the grain because it's part of the film itself. Even in speculative circles based in the Digital world, 35mm is considered to have 6K-8K resolution which is a flawed argument anyways because like Vinyl, it is not limited by resolution.
But what does that tell you? Let's take it for granted. Nearly all cinemas play movies only in 2K and look like complete trash. But 35MM still offers SIGNIFICANTLY higher resolution than even the few expensive cinemas in major cities that play 4K. And just like true Audiophiles, no true Cinephile is ever going to take Digital over Film. Why do you think that there are so many movies out there that apply fake grain filters to remind people of Film, or even digitally apply color correction that reminisces of the past with beautiful formats like Technicolor? Because that's all they offer, Digital interpretations that will never be as good as the real thing. Make The Real Deal Standard Again. Not that it would exactly compensate for the hideous "entertainment" of today but i digress.
@@Pete-eb3vo you make some very good points.
@AndyBHome, just a short addition to the last sentence. Vinyl signal to noise ratio is very dependent of the frequency. The best is about 60dB in midrange, and it degrade both ways reaching embarisingly low 15dB at the high end. That is the very reason why RIAA equalization is applied to both end of the process, leaving all comercial releases to about 11 bits.
Nice explain, thank you so much
very nice explanation
Analog won't always be more precise. Whattya talkin' about? Let's say... if you're trying to hit a specific number dead on every time, the way you will do that is only with digitality. But with analog, even when you turn that knob to a specific point, you're not gonna hit that exact number every time. Digital is _way_ more precise than analog at that.
I would understand life so much more clearly if this guy explained everything! Great video :)
My teacher ms benton liked this video
This is a huge collection of severe misunderstandings. Analog is only as precise as you portray it in theory. In reality every analog system contains noise. So we can only become as precise as we can measure. Also in music, the values get effectively interpolated between sample points. So the wave coming out of your speaker is EXACTLY the same as the analog wave would be. There is a good reason why we switched to digital and that's because its superior to analog in every possible way, except for energy consumption.
@GermanTutorials You do realize that Digital by its very nature is ENTIRELY based on speculation with numbers and digits with none of the tangibility of the Analog world? You want to paint the advantages of Analog as theoretical and yet you are trying to defend Digital which is far more theoretical by its very nature. Very typical of some people today. They think everything is numbers and speculation like a bunch of flesh and blood A.I.
@@Pete-eb3vo You mean the same speculations with nubers and digits which make up all of analog electronics and physics as well? You know thats the beauty, the very same concepts from analog information processing applies to digital information precessing. The same math and logic is used to carefully design high fidelity devices. Its really not just speculations, these are very based and established theories, backed by infinitely many experimental evidences. You wouldnt believe how much theory is actually needed to create a device like a classical stereo tube amplifier and such. I think the problem is we tend to let feelings or emotions rule over fact and thats the problem in our wolrd. We should go back a step and appreciate the theoretical foundation our ancestors have build for us and advance it instead of ignoring evidence. And also whats really funny is that you write this butthurt comment on a through and through digital machine, in a through and through digital Internet. Digital has come to stay, even with Quantum computers and AI lol and analog will still have its place in the world. You might be interested in some groups which are working on analog ai devices, working only with current, no bits and bytes ;)
@@GermanTutorials Butthurt buddy? I do happen to be aware that Digital has its positives but don't try to convince that a speculative format is superior to a Analog when it comes to reproduction! A lot of movies are made with fake grain filters and certain Color correction to reminisce of when Film was shot on Film! They brought back Vinyl and now it has higher sales than CD in the physical realm because people missed its more true and organic sound, even if some of the modern digitally sourced records totally have some issues. Digital is also limited by resolution, Analog is not. Digital is pure speculation, Analog is tangible.
Unlike a lot of people that masturbate over modern digital technology, i respect some of the foundation from our ancestors who created some excellent innovations. People who run around with their phones like a bunch of zombies couldn't care less. They also run around and think that meat can magically be made out of supposed "plant" but that's another conversation.
Where exactly do you think Digits comes from? From the Digital signal, hence 'Digits'! So your automatically wrong when you claim that they both use the same mathematics. Seems like you have it the opposite: You are stimulated by feelings over facts and not very warm ones either. Stop getting enticed by the "New is always better" philosophy, that's what the Technocrat resume wants you to believe, including your modern 'Made in China' garbage that you wear everyday and use.
You want to talk about butthurt, maybe more Germans should be butthurt about their awful government, the filthy European Union and the U.N as a whole but hey, i guess i am too close to home there and where i am is equally guilty and it's totally unrelated. 😊
Outside of usage on the Internet and a few other needs and hobbies, the Analog way of living should always come first.
you deserve more views
Excellent! as a performing artists and educator this is excellent information. You should speak at a SAG rally!! They- we- really need your expertise right now as big corporate advertisement, Hollywood, etc is trying to replace humans with IA to write scripts, compose, and use digital images of actors for performances. Its not the real world!!
i was waiting now got it thanks
Great Video!
I must say this even made like my Analog Minolta camera x300 even more
I wonder how qbits will play into this.
5:07 yeah I like analog as much as you mate but digital has already gotten there. With sound and colour.
What is a digital speaker? Aren't all speakers analog
Wonderful
Thank you.
we found it helpful. from HAWI