On Sat, Dec 13, 2008 at 03:36:35PM +0900, Colin Didier wrote: > Hi, > > I've a similar problem on my IBM X31 with my USB DAC (a StyleAudio > Carat-Peridot) using mplayer with the libsndio backend. The audio > stutters and crackles a lot, but only when playing movies. If I play > audio files, if I use the sun audio backend, or if I use the integrated > sound-card of my laptop, everything is fine.
that is quite interesting. can you show us what "audioctl blocksize" gives you when the sound is strange? > When I plug the USB DAC, I see the following lines in my dmesg: > > uaudio0 at uhub2 port 1 configuration 1 interface 0 "Burr-Brown from TI USB > Audio DAC" rev 1.10/1.00 addr 2 > uaudio0: audio rev 1.00, 2 mixer controls > audio1 at uaudio0 > uhidev0 at uhub2 port 1 configuration 1 interface 2 "Burr-Brown from TI USB > Audio DAC" rev 1.10/1.00 addr 2 > uhidev0: iclass 3/0 > uhid0 at uhidev0: input=1, output=0, feature=0 > > So I use mplayer with the following command > env AUDIODEVICE=/dev/audio1 mplayer my_movie.avi > > I tried to use "aucat -l -f /dev/audio1" but it doesn't work and ends > with the following error: > > /dev/audio1: Device not configured > safile_new: can't open device aucat -l runs in full-duplex mode by default. you can change it to play only with '-m play'. -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org
