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ALSA stands for Advanced Linux Sound Architecture. It is a suite of hardware drivers, libraries and utilities which provide audio and MIDI functionality for the Linux operating system.

Make sure Debian uses alsa:

# wajig reconfigure linux-sound-base

Things to check out

  • aconnect (part of Asa-utils)
  • amidi (part of Asa-utils)
  • aplymidi (part of Asa-utils)
  • Alsa-patch-bay


  • Find a sound card number (Choose a card)
$ aplay -l ; returns a list of your audio devices
  • Adjust audio of a device
$ alsamixer -c <card number > ; yes, this is lame
$ alsamixergui -c <card number >
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