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3

Sound card selection

rated 0 times [ 3] [ 0] / answers: 1 / hits: 14923 / 1 Year ago, sun, january 1, 2023, 5:34:55

I'm looking for a way to select sound card in Lubuntu 12.04 without installing any additional packages like xfce4-mixer (with all of its dependencies). Is there a way to interactively select a sound card with alsa?

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landarre

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answered 1 Year ago tionpromoti · Accepted Answer

There is no way to switch the audio output on the fly from one sound card to another with ALSA. To define my NuForce sound card as the one to use I created the file ~/.asoundrc with the content

pcm.!default {

    type hw

    card N2

}



ctl.!default {

    type hw

    card N2

}

where the name N2 comes from the content of the file /proc/asound/cards:

$ cat /proc/asound/cards

 0 [NVidia         ]: HDA-Intel - HDA NVidia

                      HDA NVidia at 0x93480000 irq 23

 1 [B10            ]: USB-Audio - Benchmark 1.0

                      Texas Instruments Benchmark 1.0 at usb-0000:00:04.0-1, full speed

 2 [N2             ]: USB-Audio - NuForce µDAC 2

                      NuForce NuForce µDAC 2 at usb-0000:00:04.0-3, full speed

If I want to change to B10 say, I need to edit ~/.asoundrc and restart the sound application.