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Alsaloop underrun for playback on snd_usb_audio

user1039
1#
user1039 Published in April 23, 2018, 9:43 am

I get errors when i run alsaloop command on a BeagleBone Black

# alsaloop
underrun for playback hw:0,0
underrun for playback hw:0,0
underrun for playback hw:0,0
underrun for playback hw:0,0
underrun for playback hw:0,0
.
.

Here is the Linux version :

# uname -a
Linux viginet 3.8.13-bone84 #1 SMP Sun Feb 12 06:53:52 UTC 2017 armv7l armv7l armv7l GNU/Linux

and the ALSA version :

# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version k3.8.13-bone84.

This is the sound card :

# lsusb
Bus 001 Device 004: ID 08bb:29c0 Texas Instruments PCM2900C Audio CODEC
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: CODEC [USB AUDIO  CODEC], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

At the begining, sound is scratchy and noisy, but after few seconds the sound becomes clear.

Any idea to solve this issue ? Thanks !

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