[Coco] SirSound serial port sound device demos.

[Allen Huffman]

> On Mar 12, 2018, at 1:03 PM, David Ladd <davidwladd at gmail.com> wrote:
> 
> Allen,
> 
> Nice job on these :)
> 
> How hard would it be to make a dual chip design for stereo and more voices?
> :D  I know I am crazy :P

Easy. John Strong’s prototype already does that. It takes one additional I/O line for chip select.

Mine only has one because I only have one chip. (Hmmm, I could rob the one from the original prototype John first sent me last year.)

John contributed updates to my sound chip player code for stereo, but I have not rolled it into the PLAY parser yet.

Much like Sierra games, SirSound users should be the main melody on voice 1, and extras on 2-3, then additional on 4-6. That way, even a SirSound Jr user would still get the one voice melody.

		— A