I just figured this one out. I have a slow computer that performs better at recording than this one does. I want to hear what it's recording without switching speakers etc. I nfs-mounted the recording directory, and ran: tail -f file.wav | sox -t raw -w -s -r22050 -c2 - -t ossdsp /dev/dsp This works, but only if your lucky enough to have the block that tail -f reads next be on the right bite boundary. Otherwise, control-c it and try again.