USB Audio Detected But No Sound on Ubuntu (Solved)

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Eldias Mahdi Sastra on 9:21 PM

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After doing a fresh installation of Ubuntu 12:04, I did update and upgrade. Add some apps and tweaking in order to Ubuntu faster and more reliable.

But when it did restart, suddenly the sound was not heard again. I am trying to find the cause of this. Ensure that the USB Audio detected by Ubuntu using this command.

aplay -l

The output of the command is as follows:

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: AUDIO [USB  AUDIO], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Indicates that the actual USB Audio is detected by the system. However, the system does not select it as the default audio. Then the my task is the revamp USB Audio as the main sound card on the computer. Here is how to change the default USB audio sound card.


1. Edit the file /etc/modprobe.d/alsa-base.conf . Since this is a system file you will need to sudo to get this done. e.g.

$sudo nano /etc/modprobe.d/alsa-base.conf

2. Scroll down to the end. Now you have to change the line which says

options snd-usb-audio index=-2

to

options snd-usb-audio index=-1

Reboot and it should work.

Filled Under:

Computer Linux