hardware.alsa.defaultDevice.capture
The default capture device (i.e. microphone). Leave empty to let ALSA pick the default automatically.
The device can be changed at runtime by setting the ALSA_AUDIO_IN environment variables (but only before starting a program).
- Type
string- Default
""- Example
"dsnoop:CARD=0,DEV=2"- Declared
- <nixpkgs/nixos/modules/services/audio/alsa.nix>