[sdiy] "lunetta"/CMOS sound-making equivalents in C Programming???

[Gordon JC Pearc e]

On 22/03/12 17:21, Olivier Gillet wrote:
> Keep in mind that by doing this CMOS emulation stuff in code on a
> micro, you'll have to decide on the time base (sample rate) at which
> you refresh your variables ; and you'll get nasty aliasing problems
> unless you work at a very high sample rate.
>

(sent to Olivier instead of the list, originally)

Some of us *like* aliasing!

You can emulate "circuit bent" sample playback, by ANDing bit patterns 
with the address before you read out the sample.  This simulates pulling 
address pins to ground.

The result sounds pretty much like this:
http://www.gjcp.net/~gordonjcp/mp3s/glitchamen.ogg

Arduino code, pull the whole repo to get the "ROM":
https://github.com/gordonjcp/gyoza/blob/master/looper/looper.pde


-- 
Gordonjcp MM0YEQ