[sdiy] STM32F4 synthesis examples

[rburnett at richieburnett.co.uk]

Hi Julian,

Sounds good!  You've achieved a lot there.  Is the ST micro running the 
sequencer and taking care of all of the sound synthesis too?  Does it 
have a UI and MIDI yet?

I'm curious if you used 16-bit or 32-bit calculations for the VA 
algorithms?  I developed a TR-808 model to run on the dsPIC a few years 
back and had to go to 32-bit calculations for a select few of the voice 
algorithms.  It made a huge difference with problems like limit-cycling 
and tuning innaccuracies due to the finite word-lengths.

Good luck with the continued development of your project.  I look 
forward to seeing and hearing about developments!

Best regards,

-Richie,