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 ten seconds in CD quality (16 bit, 44.1 kHz). List all options of arecord and aplay by running them with the --help option.
qaRecord is a simple recording program with a graphical interface and level display. As this program makes use of 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 (see Section “Buffering and Latencies”). 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 .