axfer - command-line sound recorder and player for sound devices and nodes
supported by Linux sound subsystem (Advanced Linux Sound Architecture, also
known as ALSA).
axfer subcommand direction options
subcommand = transfer | list | version |
direction = capture | playback
options = ( depends on subcommand )
The axfer is a command-line recorder and player to transfer audio data
frame between sound devices/nodes and files/stdin/stdout.
- Performs transmission of audio data frame. Its detail is described in
- Dumps lists of available sound devices and nodes. Its detail is described
in axfer-list(1) manual.
- Prints version of this application (as the same version as alsa-utils
- Prints a short message about subcommands for users to enter this
EXIT_SUCCESS (0) if run time successfully finished, else
This program has unit tests for internal implementation. Please refer to the
manual of axfer-transfer for details.
The axfer is designed to be compatible to aplay(1) as much as possible.
In command line, executions of aplay/arecord files under $PATH runs axfer with
compatibility mode if filesystem has symbolic link from the aplay/arecord to
- Operates for capture transmission.
- Operates for playback transmission.
$ ln -s aplay axfer
$ ln -s arecord axfer
When args in run time points to string ended with 'aplay', it has the same
meaning of playback direction. When it points to string ended with
'arecord', it has the same meaning of capture direction.
Options of -l , --list-devices , -L , --list-pcms
are acknowledged as list subcommand. Without them, the run time
performs transfer subcommand.
Report any bugs to mailing list of ALSA community
<email@example.com> where the development and maintenance is
primarily done. Bug tracking service of alsa-utils repository on github.com is
axfer-transfer(1), axfer-list(1), alsamixer(1),
Takashi Sakamoto <firstname.lastname@example.org>