Listen to 8-bit sound through a cheap and low-quality DIY Covox from 1990s. Chris Jarvis Blue Flame
Вставка
- Опубліковано 6 лют 2025
- Playing Chris Jarvis - Blue Flame in Impulse Tracker 2.14.
Original music quality for comparison:
• Chris Jarvis - Blue Flame
Original IBM PS/2 Model 30 sound (PC Speaker):
• Prince of Persia ÷ Int... - Наука та технологія
Yeah, after beeping of PC speaker this sound was really great.
Wow! What a heaven's sounds 😮
I became your follower!
Impressive, man!
I remember those days, my first PC. I was able to cram the resistors (and capacitors) into a DB 25 back-shell with an RCA socket where the cable world be. Fond memories, and yes the caps do help make the audio cleaner. 😁
For compact size lovers, there was a circuit diagram using a single 14-pin 315НР4 microchip and 2 capacitors. This is a resistor matrix with 50kOhm and 100kOhm +/-0.05% 30V resistors, and it also could be hidden inside the LPT wire plug. I couldn't find it though. AFAIR I've bought my resistors in electronic components market, I gave them the values and they gave me resistors of different size and colors and said it would work :) I don't know why, probably they didn't have the resistors of the same size and colors for required values... When I made this video, I checked their real values with a multimeter and they all have huge tolerance. Anyway, I was happy to get even these ones. Somehow we treasure the things that we make with our own hands more than the things that we can buy.
assembled the same thing in... 93 or 94))
I assembled it^ but I used ammeter to select resistors with less than 1% tolerance. So had even better quality in 90-s
Impulse Tracker with PC Speaker driver gives acceptable output as well.
It does, if your computer has a good PC Speaker. For example, the computer that was used in this video has a speaker with a paper membrane approximately 5cm in diameter and the sound quality from Impulse Tacker is tolerable, although very quiet. One can probably disattach the speaker and attach an amplifier into its connector easily. But it's not the same with PS/2 computers. They have a tiny metallic speaker that made a rather unpleasant sound, it is only good for making beeps on errors. Besides, it was soldered to the motherboard and one had to remove the motherboard completely to unsolder that speaker from the back side and get access to sound output contacts. As the computers were rather expensive for me at that time and I had no understanding and experience, I've never had courage to disassemble it and modify anything in it. So this Covox was a kind of experiment to improve the sound without making any modifications to the computer itself.
Usable sound card, but needs interpolation filter ))
my ears