On 10/23/07, Peter Hartmann <peter(a)hartmanncomputer.com> wrote: Yes, that is what I thought too. But I used the "-f dat" option while recording, which according to arecord's manpage should have given me 48000 Hz sampling rate. Based on this, I had converted au->flac by specifying 48KHz sampling rate. In audacity I had to reduce the speed (Effects menu) by around 8% to make the audio replay properly ... this corresponds to 44.1 KHz. (If I forced audacity to 44.1 KHz from its GUI (lower left), it wouldn't play the track at all) So the "-f dat" option of arecord actually recorded at 44.1 KHz and not at 48 KHz !? Here is the exact command that I used: $> arecord -D plug:hw:1 --duration=6300 --file-type au --format=dat --nonblock `date +%Y%m%d%H%m%S`.au thanks, ->HS