[sdiy] Prophet VS a phase accumulator design?

[Matthew Smith]

Quoth Tom Wiltshire at 02/02/11 09:18...
> Quote:
> ...  or start with a very long
> version of a waveform and skip samples in it to alter how long it took you to read it out once 
> (and therfore alter your final pitch). ...

I'd be curious to know at what octaves you can start skipping - if I 
were to start with 1024 or 2048 samples per cycle down the bottom (from 
MIDI note 0) and ended up with 256 samples up top (up to MIDI note 127,) 
where would be the break points?

Would certainly mean slower devices could be used (like my ATTiny2313.) 
At MIDI note 127, 256 samples per cycle needs scanning at 3.2MHz, but 
2048 samples per cycle needs a whopping 25.7MHz.

Cheers

M


-- 
Matthew Smith

Blog: www.smiffysplace.com  Business: www.smiffytech.com
www.linkedin.com/in/smiffy  www.flickr.com/photos/msmiffy
twitter.com/smiffy