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Using a USB Audio Device With a Raspberry Pi
https://computers.tutsplus.com/articles/using-a-usb-audio-device-with-a-raspberry-pi--mac-55876
# options snd-usb-audio index=-2 Simply commenting out the line will allow the USB audio device to be the primary method of output. Step 5. …
Updating ALSA Config | USB Audio Cards with a …
https://learn.adafruit.com/usb-audio-cards-with-a-raspberry-pi/updating-alsa-config
options snd-usb-audio index=0. Note we removed the # at the start of the line. For the latest Raspbian Wheezy versions, look for this line instead: options snd-usb-audio index=-2. There's no # to remove in this case, just change the index from …
Usb-audio - Alsa Opensrc Org - Independent ALSA and …
https://alsa.opensrc.org/Usb-audio
Ensure to load the snd-usb-audio module with the parameter "nrpacks=1", maybe including it into one of the boot scripts:: modprobe snd-usb-audio nrpacks=1. Or use the module configuration line (e.g. in /etc/modprobe.conf): options snd-usb-audio nrpacks=1. Now invoke JACK with the following command (or entering the corresponding values into ...
How to Assign USB Audio as primary sound device in …
https://www.crunchbang.org/forums/viewtopic.php?id=9852
# Assign USB Audio as default sound card options snd_usb_audio index=-1. Delete these last TWO lines in the file: # Keep snd-usb-audio from beeing loaded as first soundcard options snd-usb-audio index=-2. New file should look like this:
UbuntuStudio/UsbAudioDevices - Community Help Wiki
https://help.ubuntu.com/community/UbuntuStudio/UsbAudioDevices
options snd-usb-audio index=1,2,3,4 vid=0x046d,0x1397,0x0763,0x08bb \ pid=0x08c6,0x00bc,0x0199,0x2902. Information as of 2014, March 20. The restart of the alsa system can be done with the command "sudo alsa force-reload". If that does not help getting the sound working in the USB headset, a full reboot will do it. ...
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