arecord

Install arecord

emerge --ask media-sound/alsa-utils

Test your microphone

arecord -f cd | aplay

Record a snippet in "CD" quality (finish with Ctrl-C when done)

arecord -vv --format=cd {{path/to/file.wav}}

Record a snippet in "CD" quality, with a fixed duration of 10 seconds

arecord -vv --format=cd --duration={{10}} {{path/to/file.wav}}

Record a snippet and save it as an MP3 (finish with Ctrl-C when done)

arecord -vv --format=cd --file-type raw | lame -r - {{path/to/file.mp3}}

List all sound cards and digital audio devices

arecord --list-devices

Allow interactive interface (e.g. use space-bar or enter to play or pause)

arecord --interactive

Listen To Microphone And Record

arecord -f cd - | tee output.wav | aplay -

Record To File

arecord -f cd -t wav recording.wav