[PD] latency solutions... and then some

[Derek Holzer]

"Unnoticeable" latency usually refers to the musician not noticing the 
difference in time between when they press the key and when the sound 
comes out. Any time you add a delayed signal to the original signal, you 
will notice it. The "slap-back" happens at longer latencies, but at 
shorter latencies you will hear *very* noticeable comb-filtering. And 
since no computer-based solution is latency-free, I think you need to 
re-examine what you are expecting Pd to do. Either that, or go with a 
dedicated DSP board (and learn the accompanying programming!) which 
would give you a more guitar-pedal-like "zero-latency" system.

Maybe Marco Donnarumma could give a few words here on processing 
instruments live. His set uses an electric bass through Pd. My guess is 
that even the un-processed signal goes through Pd to avoid echos or comb 
filtering due to latency.

Best,
Derek

Jeffrey Concepcion wrote:

>     * in terms of processor capacity, hardware, and sound card
>       configuration, what would be the minimum requirements to achieve
>       unnoticeable latency (not hear the affected signal as a slap-back
>       type of effect)? i've read that 11ms can be achieved and is
>       unnoticeable.

-- 
::: derek holzer ::: http://macumbista.net :::
---Oblique Strategy # 18:
"Balance the consistency principle with the inconsistency principle"