On Mon, Jan 18, 2021 at 10:16:53AM +0100, Peter J. Philipp wrote: > Hi, > > I recently switched my desktop workstation to a raspberry pi 4B with 8 GB RAM. > Since the sound there doesn't work yet, I got a USB sound card, the make of > the sound card is best read from usbdevs -v: > > addr 08: 0ccd:00b1 TerraTec Electronic GmbH, Aureon 7.1 USB > full speed, power 500 mA, config 1, rev 0.10 > driver: uaudio0 > driver: ugen0 > > Like the other AUREON card in the usb drivers I put this in usb quirks to not > attach as a uhiddev (not sure if that was the right thing to do?). > > Now to my real question: mplayer sounds horrible, but iridium sound from > youtube sounds OK. There is a lot of static interference when I play with > mplayer. So what is it doing different than iridium? I tried messing with > audioctl buffer sizes and nblocks but I don't really know what I'm doing here, > so I'm writing to the list. The sound did not improve when I messed with the > buffers. >
Everything looks OK in dmesg. Try to run sndiod in the foreground, ex: doas sndiod -ddd -a on and see what happens while mplayer sounds bad. Without stopping mplayer, run audioctl multiple times and see if play.errors or record.errors counters increase continuously.
