F10 Strange Audio Errors

[Sean Bruno]

I'm seeing strange audio issues(skipping and buffering) when playing
audio from Amarok(1.4), Audacity and from the video game Quake Wars.

I have an on-board sound card:
00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97
Audio Controller (rev a2)

And a USB Turntable:
Bus 002 Device 005: ID 08bb:2900 Texas Instruments Japan PCM2900 Audio
Codec

Periodically, while Amarok(1.4) is playing back I see:
Dec 25 16:48:45 localhost pulseaudio[15582]: module-alsa-sink.c: ALSA
woke us up to write new data to the device, but there was actually
nothing to write! Most likely t
his is an ALSA driver bug. Please report this issue to the PulseAudio
developers.

When Audacity is recording from the USB turntable I see:
ALSA sound/usb/usbaudio.c:351: frame 0 active: -70

And when Quake Wars is running, I see the following in the console
output:
snd_pcm_readi failed: Input/output error
snd_pcm_readi failed: Input/output error
snd_pcm_readi failed: Input/output error


Any ideas as to what is going on here?

Sean