[sdiy] dsPIC fun board

[Csaba Zvekan]

Antti,

Do you have some code snippets and/or website where I can look and  
study your work ?

Csaba
On Jan 17, 2009, at 12:41 PM, Antti Huovilainen wrote:

> On Sat, 17 Jan 2009, Csaba Zvekan wrote:
>
>>> Antti - who found himself writing inner loops for wavetable osc  
>>> and moogish filter
>> I'll definitely get back to you Antti,
>> This is exactly the stuff that I intend to do with it.
>
> Initial pen and paper results give roughly 60 cycles for 4 pole  
> filter (with 16 bit quantization between each stage unfortunately,  
> although RC accumulators are 31 bits) and about 45 cycles for  
> wavetable oscillator with fir interpolation.
>
> I also did some estimation for blep saw/pwm oscillator (both  
> simultaneously) with max freq limited to nyquist/8 and it should be  
> possible to fit into less than 30 cycles on average.
>
> I also sketched higher quality filter and waveshaper (full non- 
> linear moog filter) for use in monosynth.
>
> Antti
>
> "No boom today. Boom tomorrow. There's always a boom tomorrow"
>  -- Lt. Cmdr. Ivanova