The rawrec/rawplay Home Page
This program is no longer actively developed. I
respond to bug reports and questions primarily to support existing
users, but I recommend new users use the aplay and arecord programs
available in the Advanced Linux
Sound Architecture utilities package.
rawrec and rawplay are GPL'd utilities designed to provide the user
with a simple way of recording or playing raw audio data from or to
their sound card under intel Linux (I havn't tested other
architectures, but its written to be portable, I think). Spiffy
- ability to record to or play from standard io. With this program
and other handy things like the sox format
converter, Ogg Vorbis
lossy codec, and FLAC
lossless codec, you can record or play just about any sound format
you will ever come accross, with the notable exception of mp3s.
- options to pause execution, pad with silence, or jump into data
files, as well as the ones you would expect which control sampling
rate, sample resolution, and number of channels.
- an option to enable (amoung other things) exact reporting of what
your sound card is doing. In case you are involved in speech
processing research and need to know what frequency your card actually
uses when you request a given frequency, for example.
- fully buffered and threaded. rawrec/rawplay use memory locking
and POSIX pthread functions to provide the most consistent possible
performance under load.
- ability to set the buffer fragment size, if you need extremely
low latency operation.
For more details take a look at the man page.
The latest stable source can be downloaded from
You can view the ChangeLog for
the latest version.
Unfortunately, the package in debian stable is fatally broken at the
moment. Don't use it.
You'll also want:
- A way to set the mixer parameters. rawrec and rawplay make no
attempt to do so (it just wouldn't be right in the script/command line
paradigm where rawrec operates). I recommend the program aumix for this.
- A format translator/effects gee-whizifier. sox is the answer
- If you are into audio compression (and who isn't?) you might want
to look at Ogg Vorbis
for lossy compression, or FLAC for lossless compression.
If you find a bug
If you find a bug or want to contact me for any other good reason, you
are welcome to email me.
rawrec/rawplay is copyright Britton Leo Kerin.
Last modified: Mon Jan 23 12:29:45 AKST 2006