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 --help
option.
qaRecord (package 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
with --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 .