arecord and aplay from the
alsa package provide a simple and flexible
interface to the PCM devices. arecord and
aplay can be used to record and play audio data in the
WAV format and other formats. The command arecord -d 10 -f cd -t
wav mysong.wav records a WAV file of 10 seconds in CD quality (16
bit, 44.1 kHz). List all options of arecord and
aplay by running them with the
kalsatools) is a
simple recording program with a graphical interface and level display.
Because this program uses an internal buffer of about 1 MB (configurable
--buffersize), it enables uninterrupted recordings
even on slow hardware, especially if it is run with real-time priority.
During the recording, the currently-used buffer size is displayed in the
status line under and the maximum buffer size
required so far for this recording is displayed under