Re: [linux-audio-dev] M-Audio and jack

On Sat, Jun 04, 2005 at 08:43:45PM -0300, Ignacio Ram?rez wrote:

> However, if I try the same configuration with the the M-Audio card
> (which is mapped to card 2, full duplex is implicit)
>
> jackd -R -d alsa -d "hw:2" -p128 -n2 -S -r48000
>
> I get a lot of xruns. Then, if I try something like
>
> jackd -R -d alsa -d "hw:2" -p512 -n2 -S -r48000
>
> I get NO xruns either, but the sound is completely "chopped". This only
> stops happening with a period size of 2048!! Of course, at this point I can
> only use it as a recording/playback device but I have to forget about
> realtime
> effects!

Try -p128 -n3, or -p256 -n3

Having a total buffer size that is a multiple of 48 often helps with USB.

-- 
FA