Problems with USB DAC PCM2704

[Holger_P]

I own a Raspberry PI B and the newer B+. On both there problems with USB DACs and XBIAN. I installed mpd and it plays via alsa. There are dropsouts in the sound. The "old" B much worse than the newer B+, but the B+ crashes after 20minutes playing music.

With the same hardware and the Archphile distro the sound is no problem. But Archphile has no XMBC and i would like to use one Raspberry for both, XMBC with the TV-Set and mpd for playing music. Of course always one of both.

The DAC is chaep one with the PCM 2704, a very good chip from BurrBrown/Texas Instruments. I tested two DACs, both make the same trouble.

I read in other forums, that the PCM 2704 makes high CPU-Usage, but i found nowhre a solution. Otherwise, there must be a solution, because Archphile is running witht the DACand a very good sound. I compared mpd.conf and alsa.conf and found no great difference.

Can anyone help me. I am Linux-Newbie


Holger