----- Original Message ----- > Hi, > > Hi, > > I was hoping I could get some help troubleshooting some audio quality > issues I am running into. > Specifically, I am getting a lot of *pops/crackles* when I play audio > files. It shows up when I > move from 2-channel to 4/5 channel audio (via pauvcontrol) - I am > using a USB X-FI sound-card with > the Meego IVI. > > I have tried changing the resample method (going from ffmpeg to > high-quality) and setting tsched=0, > neither making any noticeable difference. > > The only things I saw in /var/log/messages that seemed relevant was: > messages:Aug 6 16:59:26 localhost pulseaudio[570]: alsa-sink.c: ALSA > woke us up to write new data to the device, but there was actually > nothing to write! > messages:Aug 6 16:59:26 localhost pulseaudio[570]: alsa-sink.c: Most > likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report > this issue to the ALSA developers. > messages:Aug 6 16:59:26 localhost pulseaudio[570]: alsa-sink.c: We > were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() > returned 0 or another value < min_avail. > > And this was spout out of dmesg > [ 21.857184] ALSA sound/usb/mixer.c:2110: status interrupt: c0 00 > [ 21.897058] ALSA sound/usb/mixer.c:2110: status interrupt: c0 00 > [ 21.961062] ALSA sound/usb/mixer.c:2110: status interrupt: c0 00 > > I have already eliminated the speakers and the amp (played music from > a different source and > they sounded fine). > > Let me know what else I should post (I could record the sound, if that > would be useful). > > Thanks in advance, > > Nasa
