[sdiy] Quality reverb on STM32's?

[Declare Update]

For a practical-ish answer, 64k really is enough to get some good reverbs going. I did this on a teensy a few years back and was very impressed. 

otherwise, I’ve made a good sounding reverb on stm32f334 (only 12k of ram) by one, using a low samplerate (20k ish) and thus low bandwidth, and two, using a second adc channel for the larger feedback loop. this allowed simple analog filtering and basically a free short delay in the loop. the results were great. 

Sent from my iPhone

> On Apr 13, 2018, at 3:30 PM, Tim Ressel <timr at circuitabbey.com> wrote:
> 
> It depends on how long of a reverb time you want, and the sample rate of course. Reverb algorithms use feedback so the delay buffers are smallish. The Midiverb had I believe 64K of memory and a low sample rate.
> 
> --TimR
> 
> 
>> On 4/13/2018 12:25 PM, KD KD wrote:
>> So when we the unwashed public finally have access to 32bit and SAI/I2S
>> with large on board SRAM's i wonder how many Mhz and Kbytes do one
>> need to make "quality reverb" on STM32? I'm thinking of how much is
>> "enough" to make quality reverb with the known principles excluding the
>> large memory sampled ones?
>> _______________________________________________
>> Synth-diy mailing list
>> Synth-diy at synth-diy.org
>> http://synth-diy.org/mailman/listinfo/synth-diy
>> 
> 
> -- 
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
> 
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy