Oh yes it can.
I am currently working at a 3-voice synthesizer which should mimic and sound almost like a Commodore 64 SID chip, on a plain Coco 3. At the moment I haven’t finished coding the 3rd channel of a demo music, but it is going pretty well.
The final result will be a full 6-bit quality sound mixed in realtime, outputing at a high quality sample rate of 19456 Hz, featuring 3 completely independent channels that can play either a sine, sawtooth, triangle, pulse, or noise wave, at any frequency. It is not fully done yet but I am very confident it will sound like a C64.
(However the CPU is 100% used while playing so no chance of having stuff going on the screen simultaneously :))
This post was submitted by remz.