555 Timer Project - Signal and Sound Generator
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- Опубліковано 4 жов 2024
- Breadboard and test a simple 555 timer signal generator. Use diagram data in specification sheets to create your own circuits.
This is not just a video showing a project being bread boarded with no explanation of the circuit. This video shows how to breadboard and understand how how the circuit works.
Please like, share and subscribe if you like what you see.
Thanks.
As a rank beginner, that was the most informative video on 555 chips I've seen so far. The only one that has explained each pin's purpose. Thanks.
+Marc Arndt You're welcome. Thanks for watching and commenting. :-)
Yeah man. I agree. Very simple, technical but understandable for us students.
thanks mr knox
I agree
Marc Arndt amen.
Thank you so much for this video. I'm starting out with practical electronics and this was the easiest tutorial I could find on how to make this circuit. Your explanations were easy to understand and I liked that you went through everything step-by-step with a clear view of the breadboard while building it. Next step is the Atari Punk Console since this is essentially the first half of that.
Oh! the "555" has been around for as long as the universe and we ALL still love that chip
This was one of my first circuit related projects, and I gotta say it was crazy hard. Learning how to read a schematic, and figuring out how to put it all together was a crazy learning curve, but was totally worth it. Thanks for the help man!
+52 Skillz You're very welcome. Glad you got the project going and I particularly appreciate you sharing your experience. ;-)
Just built this and it works :) First step in building my own synth, haha
Excellent !!!! Thank you very much Dorian. I will put this circuit to the test within the next week. Refreshing to see UA-cam members that are so helpful.
This is an AWESOME video and explanation and I hope you're still doing them. You mentioned requests. I'd love to see this circuit used to inject a signal into a length of wire and then another simple circuit to detect when it comes across that wire -- just a no wire/found the wire result. It could then be used to set a perimeter for robots, etc. Thanks for the video!
Thanks for the comment. Your request sounds useful I'll work on putting something together. Dorian.
I wish I had found this four years ago I have just now found the subscribe button on. This kindle device. I want more of this. Great tutor Thank You.
Clear and concise step through.👍
I ran the circuit from a 5v wall wart with no problems.
Glad things went well from the start. Have fun!!
BTW: love the knife-wielding tentacle.
Hello Dorian,
This description is very well done. Good voice, good pace, good explanations with no BS. Great job. Thanks
Good tutorial, very straightforward and easy to follow with one of the most versatile chips ever, the good old 555.
+Tom Bradford Thanks. I'm currently working on a book and series of videos to help people learn electronics using the 555 timer. As you said it's about the most versatile IC ever built.
Awesome vid! You explain the how and why parts in easy to understand ways. I'm waiting on my first scope coming so looking for things to build that'll let me play around and learn how to use it. I'm a complete beginner getting into hobby stuff. This is a perfect wee project that I sort of understand so will have great fun tinkering around. Thanks for sharing! ☺
Best 555 explanation and thorough/clear and perfectly paced wiring example EVER! Great video! ...note I need to learn how to make a loud buzzer from 2 timers and a piezo buzzer n I'll be golden!
That was such a good explanation with no bullshit. Exactly what I needed, thankyou.
Can't believe you don't have more subscribers.
Some solid shit here. Great info. Thanks.
As per Marc Ardnt 1's comment below I too am a rank beginner and found this tutorial the best so far, thank you
Thanks. :-)
Dorian..,thank you so very much.,now from all the tutorials i have study this is the only one that was so E Z to understand .,now i feel confident that i can start getting all the parts and pieces to start building timer ..thank you
+RAMM GARR Great! Glad you found the video useful. Thanks for commenting.
Muchas gracias!!! thanks Dorian! This is a great video, well explained. I made theproject and really works! Trying to put various circuits like this in a box to make good noise on stage!! Congrats and thanx
thanks for posting . I am a digital musician who seeks to understand how the basic audio waves are produced and generated. i am trying to build my own curcuit to gain full knowledge of how it all works...
yes best video for beginner that ive seen. your actually a good teacher unlike most
Thank you. I am also needing a simple square wave output at anywhere between 25 and 100hz for a false signal. This has been extremely informative -Sid
Yes, this circuit is useful. In class, I achieved building an astable & monostable circuit.
I'm very glad you liked the video. I hope you plan to be a future engineer. Thanks for commenting.
I got the 100 khz I need. Thanks for this circuit. Now I can build the high frequency circuit I want to build.
Have fun
Super informative..I'm retired and a fixed income.This is great. will building it very soon
Glad you enjoyed the video. Thanks for commenting, have Fun!
This is the first and only video of yours that I have seen. I have seen many electronics tutorial videos on youtube. This is one of the best videos that I have seen. I like that you kept it simple, used an actual schematic and actual breadboard and components and jumped back and forth on how you were putting it together because I see the schematic have an idea of what's going on (ok thats a resistor, thats a capacitor, thats a transistor, that black dot on crossing lines mean that they connect...etc.) But I have a hard time translating that to the breadboard. Other people make vids by drawing out whats going on or making animations, or they make rapid short scenes on what is getting done with little and rapid explanation. Im really interested in dabbling with electronics, as mentioned before I have seen many videos. I went to radio shack and bought an assortment of resistors, of disk capacitors, diodes, a breadboard And now im like now what? what can I do with this? on that note this video gave me insight on what the 555 timer can do But now what? how can I utilize this circuit if I Build it?
thank you very much...you have explained well about why its not neccessary to use the capacitor connected to pin 5
+Rodney Kadadi Thank you for watching and commenting. I'm pleased that you found the video useful.
Hi and thank You, this is the first tutorial that actually worked for me :) Great explanation and step-by-step wiring.
Great! Hope you have fun with the project. Thanks for commenting.
Excellent explanation and presentation. Will certainly look for more. Love that little chip.
Thanks, glad you enjoyed the video.
Thanks a lot I understand what the pins on the 555 do. Now I am going to make a resistance based piano courtesy of RadioShack lol. Thanks for the video.
+JP Aldama Good. Please keep me posted on how it goes.
Once at 60hz, measure resistance of pot, add it to the resistor you bridged across and replace both with a resistor of that new value. Now you have a 60 cycle generator. This is for the beginners.
does is posible to input an audio signal to mix it with the squere wave signal that changes with the pot? it is an amazing explanation.
Great explanation!!! You should do a video with the 555 and a latching switch made with diodes.
Now, I want to build more circuits with the 555 timer IC.
Thanks for commenting. Sounds like I need to get busy creating more videos.
Great video! Thank you so much for putting this together for us, it was very helpful to me, I put one together and it works perfectly, now I'll expand on it.
I got there! a proper dub siren with lights...thanks again.
Out of curiosity, can you power multiple copies of this circuit off the same 9v power supply on one bread board?
Jon Flores absolutely!
Exactly what i was looking for.
Very informative and straight forward video, thank you!
Thanks! Glad you found it useful.
thank you for very informative video tutorial. i have LM555 and NE555 and was wondering it would make a difference. Also was wondering it would sound different if i use different ohms of speakers. Thanks!!!
Both the LM-555 and NE-555 are equivalent and you should not have a problem with either of these chips. I like the LMC555 version the best since it is uses MOSFET transistors instead of BJTs.
I would use a 8 ohm speaker or greater to avoid overloading the chip. If the speaker is in an enclosure (small box) it will sound much better and louder.
Thanks for watching and commenting.
Have Fun!
can we use other capacitors instead of it
You can use any capacitor values that give you a sound. Experiment, you won't hurt anything.
GREAT video explaining the setup and triggers, and the second is great too.
Can the 555 be used to trigger second 555, so you would have a ..|.|.....|.|..... pattern on the scope, and adjust the timing between the two?
Yes, this would not be a problem.
Terry Martin I think you would connect pin 3 of the first 555 to the Trigger input of the second 555. You could probably just make two of the above circuits and connect them as I mentioned. Try it and see what your result is. You can't harm anything by experimenting.
Great video with great explanations,thanks
Thank you for your positive comment.
I really appreciate your work. NIce Job!
I will be really glad to know how do you think on a project, I mean the design and the components and everything.
+Naman Jain I've been designing and building for so long its just natural. There are so many ideas and so little time especially for the 555 timer. I could and should do a series on the 555 timer because its such a great way to build interesting projects and learn electronics at the same time. Let me know if this sounds like a good idea.
Please subscribe and follow.
I extremely appreciate your wizdom, this information helped me a lot, thank you
First few words made me worry Duke Nukem made an electronics tutorial
interesting that 60Hz signals do not produce 60Hz sound waves, which would be the lowest subwoofer sound the human ear could (maybe) hope to hear. I wonder if the offset between the electrical freq and the audio freq is linear or what.
It really works thnx!!
Great! Have fun with it.
Hey I'm a student and am doing an assignment on 555-timer chips and producing musical notes using them for year 11 physics and I was just wondering where you got the graph you used for the Capacitance and Resistance vs Frequency? Also thank you this video really helped me put together my own circuit.
The graph comes from a 555 datasheet available at the following URL:
www.ti.com/lit/ds/symlink/lm555.pdf
Anytime you are working with a device you can usually find a data sheet for the device using a Google search.
+Dorian McIntire thank you very much
Thanks. Well explained.
Great stuff! Very enlightening indeed! Thank you very much!
You helped me build my first successful oscillator! thanks so much!!! What would you reccomend to get more range out of the pitch? What resistors/capacitor and pot should i use?? Thanks!
Play with resistor/capacitor combinations. A lower resistor, pot or capacitor value will create a lower pitch. A higher resistor, pot or capacitor value will create a higher pitch. I have other 555 timer projects if you search for "dorian+mcintire+555 timer in UA-cam.
Thanks so much!
@@DorianMcIntire
@@DorianMcIntire If I wanted to have this thing powered by eurorack (12v power) What would I need. An op amp circuit to lower the incoming signal?
It will run just fine with 12 volts DC.
Thanks a ton man, this was great √
I hooked this up to a speak but no sound. I hooked it up to my oscilloscope but i wasn't sure what to look for. I wish you could have hooked up an LED so we could test it. I tried the led positive at pin 3 and it's ground to ground but no luck. i don't have a 15k resistor so i wired a 10k with a 4700k resistor. Other than that, followed to the letter. Doesn't seem like that would be a factor though.
James, You can test with an LED but you must slow down the repetition rate by using a much larger capacitor such as 100uf or more. Common causes for malfunctions are: miswiring issues, capacitor polarity issues, faulty components - particularly a bad 555 timer. If your using an LM555 timer connect a capacitor from pin 5 to ground also make sure your speaker is 8 ohm or more. Its tedious but those who have problems inevitably get back with me to tell me it works fine after rewiring or discovering a problem with a component Good luck.
Thank you.
Excellent video!!!! Thank you for your detail. Do you have a video or can you provide info on how to invert the output frequency? I want to be able to select between the non - inverted and the inverted output signal...... Thank you.
Thank you very much
+mrdcnk Thank you for this comment.
"Thank You", thank you very much....
+Inquire98 You're welcome and thanks for watching.
thanks most people do a bad job of explaining.Dub siren build in progress.
+SI.C.O. MC FOX Great! Thanks for commenting.
Oh man, the wiring made my inner neat freak cry; but I guess that is a con of watching Ben eater’s vids lol
Nothing wrong with neatness but many of us enjoy exploration and immediate gratification. There is really no choice however with complicated digital circuits. If you had to watch someone wire such circuits you would be viewing for hours ;-)
very nicely done - thanks.
Thanks!
Just like how the Grand Gallery works in the Great Pyramid.
How would I go about controlling the pitch with a small amount of variable voltage? Like the voltage used to drive a meter on a Geiger counter.
I built a morse code oscillator using a 555 timer. I would like to amplify the output from pin 3 going to a speaker and would also like to add a head phone jack on the output. Do you have any ideas for me ? Thanks in advance
Thanks, it is clearly explained. Pls let me know the multimeter to measure the frequency your are using from RadioShack
Jeylani Osman I don't think they sell this meter anymore but I found several meters, with the same capability, on Amazon.
www.amazon.com/Mastech-MS8261--MS8268-Digital-Multimeter/dp/B000JQ4O2U/ref=sr_1_1?ie=UTF8&qid=1435501136&sr=8-1&keywords=multimeter+frequency
www.amazon.com/AideTek-VC97-Multimeter-Capacitor-Frequency/dp/B008GTEZPI/ref=sr_1_2?ie=UTF8&qid=1435501170&sr=8-2&keywords=multimeter+frequency
Just search for the keywords "Multimeter" and "Frequency". Many of these are very inexpensive.
Thanks for watching and commenting.
Thanks
will let you know how it works.
very good
thanks for the video; what i want to do is have two of these circuits playing at the same time through just one speaker --- how can i safely connect the two so they still generate sound individually but have only one output?
+Jen Hill This can be done but you'll need two transistors to act a digital mixer. I will find a way to supply a schematic.
Dorian, Im actually looking to just generate a single triggered beep noise around 490hz. But Id like something clean - which would be more of a sine wave that this square wave from the 555 - any recommendations for a quick and easy circuit? Thanks!
+Jeff Para Sine waves are a whole different animal. You can filter a square wave and get close but such filtering will require quite a few additional components. After filtering you'll need a driver circuit to boast the signal enough to drive a speaker. You'll have to wire the circuit to activate the sine wave for only a short duration by driving the reset pin low for a short time.
Really lovely video, very helpful, correct me, if I`m wrong, but this can also be used as a pulsed audio generator as well, right?
Also, is it possible to connect an audio input to this bad boy?
Yes you can pulse the device by taking the reset pin from High to Low. For audio input do you want to modulate the tone? If so can do this by applying a signal to pin 5. See the following video for details ua-cam.com/video/8GWlifMRsns/v-deo.html. Thanks for watching and commenting.
Well I wanted to input an audio and output it at the frequency of the chip whilst it pulses at a rate, that`s below the perceivable range- less than 1/10 of a second. Honestly-LOVE, how big of a help this has been!:)
You should be able to do this using the reset input if I understand correctly. Have fun!
Just checking, it is possible to input an audio for this circuit, right?
You can input an audio signal but it will really just turn the output on and off at an audio rate. Make sure the audio signal does not exceed the power supply voltage for the 555.
one more question: i have a pot that ranges from 0 to 20M. which values of resistor and transistor should i use?? thank you!!
Do you mean resistor and capacitor? It depends on what frequency you want to produce. For a 20M pot any resistor you use will essentially provide a 50% duty cycle so you can use the same resistor used in the video. Using the same capacitor valued will give a timer with a very long time period so you may want to reduce the capacitance to compensate. Experimenting is OK as long as don't use resistor values that are not too low.
Thank you !!!!!!!!!
Thank You so much.
You're welcome. I'm glad you found the video useful. Thanks for commenting.
Wonderful video! I had just two questions. The first being how many mh does this thing use? And second, I'm trying to make a "Binatural" sound wave generator. Is it possible for you to make a video on a very simple sinewave Generator??
+Patrick Are you asking how much current the circuit uses. It's possible to build a sinewave generator but not with the 555.
great video ! thank you
You're welcome. Thanks for watching and commenting.
can you kindly help me on the applications of this type of circuit.....or the use or purpose of it
Hi Dorian! I'm trying to make a little synthesizer with a 555 timer, and your video is perfect for me. I have only one question: what is the value of the potentiometer? Thank you! ;-)
A 10K potentiometer will work fine. Let me know if you have problems.
Thanks for watching and commenting.
I tried with a 10K pot, but the circuit seemed to be overloaded: it produces a strange whistle and the timer became hot. I solved the problem with another 4.7 uF capacitor connected to the negative pole of the speaker and to the ground; but in your video the same circuit works without this capacitor. Is the resistance of the potentiometer too low?
Thanks.
I would like to build this circuit to go from 1 hrz to 500,000 hrz and run to different hrz to 2 different speakers and be an on off signal. Can it be done with one 555 ic?
The timer can produce signals beyond 1 Mhz. If you are connecting it to a speaker the speaker cannot produce frequencies much beyond 18 Khz and such frequencies are not audible anyway.
hey ! excellent work you have done ! i wanna produce a frequency of 23,000 Hz and i have calculated my resistors and capacitor.there is one problem ..how much power speaker i should use to produce sound ?
+Hammad Fareed 23,000 Hz is almost beyond the range of human hearing. Most speakers will have problem reproducing this frequency. You should use a high frequency tweeter and will probably need to pass the signal through a high frequency amplifier to reproduce it well.
+Dorian McIntire thanks for helping but i am doing a project "cat repeller" for the purpose i have to generate ultrasonic frequency above 20 KHz that's why i am producing 23 Khz .. but i have no idea which speaker suits fine ? i have 2 w and 0.5 w speaker ! will it help ?
Hi, really helpful, quick question though, what determines the min and max frequency of the output ?(my electronics knowledge is a bit rusty)
+sminkly The min/max resistance of the potentiometer determines the min/max frequency for a given capacitor value. Another value of capacitor will give a different range of frequencies. You can look at the 555 timer data sheet graph for more information.
+Dorian McIntire Thanks for quick reply, I'll look at a data sheet.
Hi! I've been trying for so long to build a circuit that uses a 555 to make a Led flash and use a potentiometer to regulate the blink of the Led. The thing is I can't make it work properly, I'm using the exact same circuit as you only I replace the 10k resistor for a 10k pot and in the pin 3 I use a 1k resistor and a Led. Which you think it could be the problem? Maybe the value of the capacitor? I'm using a 100 uF. Thanks!
***** Your blink rate should be approximately 1 Hz (1 blink per second) with the values you specified. If you're using the NE-555 timer connect a 0.01 uf capacitor between pin 5 and ground. Also make sure you hook the negative terminal of the capacitor to ground to get the polarity correct. Good luck.
Wow, nice informative video!! by the way, I'm wondering how can I use it to make a cell-phone jammer?
Hi Dorian, I am planning to make a hi pitch sound device to trace conduit. Any chance you have a drawing and part s available. My plan is to attach device speaker to one end of the conduit and sound should travel to other end. Sound like smoke alarm.
ThanksDejan
+Dejan Nikolic Interesting idea. You want to send a sound down and empty conduit? or are you using it trace wires in a conduit?
What kind of speaker did you use ? Can you use a buzzer?
I used an electromagnet speaker. While you can use a piezo speaker (sometimes referred to as a buzzer) it will not sound good or have much volume.
Make sure you don't use a actual buzzer which can only make a sound at one frequency and will make a sound by just applying power.
great circuit man. and also short and good explanation. can you tell me how to make short beeps or pulses to be random separated in time?
i want the pulses to be 10 or 20 miliseconds long and to happen from 2 to 20 pulses or beeps per second. is that possible? most important i want the pulses to be short and Random... thank you
Antonny A. Sorry for the delay - no pun intended. Random is difficult to do with the timer - after all - it is a timer ;) There are some tricks however that might produce a quasi-random effect. Let me get back to you.
thanks for answering, i will be waiting for the quasi random circuit 555
tnx! great data.
Could you show how to build a IC1 simple ignitor by Bruce Simpson this is a very similar version of your component you have here
Shane,
I'll take a look if you send me the link.
Thanks.
"Good", very good 😉
Thanks! 😃
@@DorianMcIntire I am NEW to your channel 😐 I would like to see videos of the IC555 and IC556 if possible 🤔 Let me know 😎🙏🏾😎
Check out some of the other 555 timer videos I've produced:
ua-cam.com/video/V-oQLXrib0g/v-deo.html
ua-cam.com/video/8GWlifMRsns/v-deo.html
ua-cam.com/video/raLKval-Gr8/v-deo.html
ua-cam.com/video/qjve6Q2QGYw/v-deo.html
ua-cam.com/video/NAA5ivSSQR0/v-deo.html
Hope you find these useful. I plan to create many more 555 timer videos.
@@DorianMcIntire "Thank GOD", and thank you very much for your support and time 😉
building a dual oscillator synthesizer based on two of these circuits in parallel. Its going well! only question I have is what rating is that pot you are using? 10k ohms?
+Julian Gray Media I believed I used a 50K pot. I wanted a value of resistance large enough so it did not substantially change the frequency when I put it in parallel with the 15K resistor. If you put a 10K pot in parallel with this resistor it will almost double the frequency. It never hurts to experiment however with resistors and pot values this high.
Hope you have success and fun with your project.
+Dorian McIntire What if I were to scrap the parallel resistor and use only a pot? Is that a bad idea? And thank you for the immediate response!
+Julian Gray Media also, if I wanted to add a volume pot where would i put it in this circuit
+Julian Gray Media Just using a pot would be fine but try to guard against letting the pot resistance going to "zero" since the circuit will freeze up but won't be damaged.
+Julian Gray Media Adding a volume pot can be a little complicated. The pot should have a low resistance and high wattage if you want to put it in series with the speaker. The best way to hook up a volume control however is to use the pot to couple the signal to an amplifier. Pin 3 to one side of pot ground to other side of pot and center of pot to amplifier.
Can u suggest me values for RA, RB and C to produce 1Hz Clock Signal?
Actually I need to design a 3 Bit Gray Code Counter (with LED). Will 1Hz produce a desired Counter with LED so that its state change is humanly visible?
Waiting for your response..........
+fayaz mohamed The graph on page 11 of the following spec sheet will with this: www.ti.com/lit/ds/symlink/lm555.pdf
Looks like Ra=1k Rb=50k and C=20 uf will get you close.
+Dorian McIntire
thanks man realy helpful
Thank you so much for your explanation! I am using this circuit for a project, but the signal is much quieter that yours. Is there a resistor I could change to make the signal stronger?
Chance Noble I used a pretty large speaker for the video you can see it in another 555 timer video I made:
ua-cam.com/video/qjve6Q2QGYw/v-deo.html
Use as large a speaker as you can find for low frequencies an put the speaker in an enclosure, like stereo speakers, for best performance.
Sounds like another video opportunity to show people how to do this ;-)
Thanks for watching and commenting.
Dorian McIntire Wow! Thanks for your speedy reply!! I am using a fairly large speaker as well. Not sure what happened here, but I replaced the 555 chip I was using with another one from a different supplier and it became much louder.
Great!
Dorian McIntire Please consider subscribing. Thanks.
NE555P 16HT13A vs NE555P 91M DN1519G4.
For me the "16HT13A" works better!
Who knows the difference? Maybe I'm just using it wrongly or "DN1519G4" isn't supposed to use in high freqiencies (as the osc-r).
Thanks, nice
Thank you too!
does this circuit work for controlling a switch in a dc/dc buck converter ?
Yes, you can use this circuit to generate any square-wave waveform from .001 Hz to 100,000 Hz. Have fun.
Well I have been doing some testing with your circuit and found if I use a car radio size speaker it blows out the 555 time IC using my power supply. I did get 24khz on my frequency counter. Would like to get it to 100khz for testing. Any ideas how to do that?
You won't be able use a 4 ohm speaker without using a power transistor driver. The timer can produce signals above 1 Mhz with the proper capacitor and resistor combination. The timer cannot produce currents much above 100mA
@@DorianMcIntire I changed caps and got over 250 khz no problem.
please show how to do connections while performing a practical of op amp as inverting amplifer with AC supply nd using CRO . HOW TO DO CONNECTIONS IN BREADBOARD AND WITH CRO AND FUNCTION GENERATOR ?
PLEASE SHOW AS SOON AS POSSIBLE THANKU
+vahidali sayyad If I understand correctly you are looking for video showing how to hook up and use the 555 timer as a function generator sending a signal to an inverting op-amp that can be monitored using an oscilloscope. Is this correct? Thanks.
no sir only want to hook up ic 741 as inverting opamp that can be monitored using oscilloscope
Can you turn it down to 7.8Hz and what the sound Looks like?
Yes. With the proper components you can actually adjust the timer frequency down to below 0.001 Hz. Unfortunately humans cannot hear sounds below about 20 Hz and you would need a huge speaker to hear such a low frequency. You would be able to feel such low frequencies however with the proper speaker equipment.
can you show how to make a small boom sound like a small explosion please?
Ok so I'm trying to build a sound sensor that when you hit a drum it flashes a light. I wand to use
Battery Power 10/20/30/40 LED Bulbs Fairy Xmas Party String Lights Decoration found on ebay. how could I do that. it has to be done for 12 drums and under $50 the lights alone cost $17.16 for 12 of them.
+luke baggens You can use the 555 timer to examine the input level on the threshold pin and turn on the output when a certain level is reached. This might do what you want to do. You can use a small piezo unit for the detector since they produce a high signal with a small amount of vibration.
Thank youuuuu
can you make a decoder that reads the tone and activate a relay?
I want to use this to program an animatronic by sending the signal to the cassette on one track and use the other track for music, on the track with the signal i want to put a tone generator on it to detect the signal and activate a relay, a tone will be sent to the input jack of the cassette recorder and a signal reader on the output
***** The best best way to decode a frequency is by using the LM-567 tone decoder chip.
s154.photobucket.com/user/terrypin999/media/Electronics/567ToneDecoder.gif.html
Good luck and thanks for commenting.
can you explain how audio works on laptops? if I code a sine wave, using an audio programming language, what happens between the command and the sound? I am still in the dark.
The process is similar to being able to store a movie by only having to store a sequence of pictures. If these pictures are quickly displayed one after another you see a movie instead of a bunch of pictures. The process is very similar in order to store sound but you only have to store regularly-spaced voltage measurements of the sound, stored as numbers, in order to reconstruct the sound. If these numbers are played back quickly through a digital to analog converter or DAC (a number to signal converter) and at the proper rate, the sound is reconstructed. An audio file (WAV, MP3, etc) only contains a bunch of such numbers containing all the information needed to reconstruct sound. For high quality sound the voltage measurements must be capable of breaking up the signal into about 65000 parts (2 to the 16th power or 65536) and the A-D converter must be able to play these voltage levels back at between 2 and 3 times the rate of the highest frequency contained in the sound recording.
The link below is a very simple explanation of the process.
ua-cam.com/video/9z5HOZ4C1KY/v-deo.html
Looks like a good topic for another video.