[sdiy] Ray tracing hardware for audio simulation

[rburnett at richieburnett.co.uk]

On 2022-08-01 14:38, Matthew Skala via Synth-diy wrote:
> On Mon, 1 Aug 2022, Mike Bryant wrote:
>> 1mS delay is too much for live voice processing so they need to work 
>> on
> 
> Move the speaker a foot closer to the listener.

Yeah.  I'm very sceptical of claims about such small latencies 
mattering.  As you say it's equivalent of the monitor speaker being 1 ft 
further away.  Many audio CODECs have considerable delay due to the 
digital filters in their ADCs and DACs anyway so that sets the limit on 
what even a basic talk-through DSP program could achieve.

The only time I can see 1ms latency mattering is possibly for something 
like headphone monitoring where a vocalist might be put off by hearing 
their own voice coming back in the cans with a delay and mixing with 
what they hear directly in their head (via bone conduction?)  But then 
how small a delay *is* tolerable without tonal colouration?  And surely 
for something like "comfort reverb" on a vocal monitor mix, only the 
"wet" reverb part would go through the DSP system and incur latency.  
The dry vocal signal would still be all analogue, and therefore have no 
delay?  (Or is there no "all analogue" path with zero latency in today's 
modern digital world!?)

-Richie,