SQUARE DISCO (ZX81 / Timex 1000 / Timex 1500)
by YERZMYEY
- 5 comments
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- Posted April 9, 2012 12:00 pm
Pages 1
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I started to make chiptunes for ZX Spectrum computer in 1989.
ZX Spectrum 48K has 1-bit sound by default, but one can also connect an AY-interface to the computer (existing since its very beginning in 1982 and even earlier because first AY-interfaces have been built for ZX81 computer - 1981).
Anyway - then Spectrum has the same standard possibilities what Amstrad CPC, Atari ST or MSX have (they using the same chip standard: AY/YM). It means 4-bit sound, 3 channels + white noise generator, square wave and several buzzers. Or - instead of it - I can use 3 channels of 4-bit digital sound but then I have to fit all samples in 48Kb of RAM.
In case of chip-music, as "standard possibilities" I understand AY/YM working in 50hz (Atari ST can use this chip with 200hz of speed which gives them better audio effects. Cry cry!!).
So that's my weapon of choice: ZX Spectrum 48K with AY-interface. (Well, actually last times I found it's YM but the difference is minimal). 
For making chiptunes I use ZX Spectrum's Sound-Tracker 1.1 ![]()
...and for digital MOD-like music I use Sampletracker 2.0. ![]()
In 2002 I founded AY-RIDERS band. We play chiptunes on our Spectrums (48K, 128K and higher models).
AY-RIDERS' music You can find here: http://ay-riders.speccy.cz/ 
My solo music You can find here: http://yerzmyey.i-demo.pl/
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