[linux-audio-dev] multiface latency question

Wolfgang Woehl tito at rumford.de
Thu Apr 6 18:35:29 UTC 2006


"Dmitry Baikov" <dsbaikov at gmail.com>:
> > > P.S. that's why I get no responces - they are still
> > > measuring....

Might be because there are no Multiface II's around. Anyway, 
here are numbers for a hdsp 9652 + Behringer ada8000 audio 
loop, the hdsp has similar core specs down to the FPGA 
architecture.

jackd with -p 64 -n 2
jdelay -> pcm_playback -> ada8000 -> pcm_capture -> jdelay

makes jdelay say 195.440 frames which is good for
   2 x 64 frames jack latency
 + 2 x 33.72 frames non-jack latency (in part hdsp's handling, 
in part the ada8000's handling)

Can't take the ada8000 out of the picture because the hdsp has 
no analog inputs, same "problem" with a digiface, I guess. 
I'd appreciate the same measurement from a multiface owner.

-- 
Wolfgang




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