AXFER(1)                                                 General Commands Manual                                                AXFER(1)

NAME
       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).

SYNOPSYS
       axfer subcommand direction options

       subcommand = transfer | list | version | help

       direction = capture | playback

       options = ( depends on subcommand )

DESCRIPTION
       The axfer is a command-line recorder and player to transfer audio data frame between sound devices/nodes and files/stdin/stdout.

OPTIONS
   Subcommand
       transfer
              Performs transmission of audio data frame. Its detail is described in axfer-transfer(1) manual.

       list   Dumps lists of available sound devices and nodes. Its detail is described in axfer-list(1) manual.

       version
              Prints version of this application (as the same version as alsa-utils package).

       help   Prints a short message about subcommands for users to enter this application.

   Direction
       capture
              Operates for capture transmission.

       playback
              Operates for playback transmission.

EXIT STATUS
       EXIT_SUCCESS (0) if run time successfully finished, else EXIT_FAILURE (1).

COMPATIBILITY TO APLAY
       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 axfer.

           $ ln -s aplay axfer
           $ ln -s arecord axfer

   A string to which arg[0] points
       When  args[0]  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 acknowledged as list subcommand
       Options of -l , --list-devices , -L , --list-pcms are acknowledged as list subcommand. Without them, the run time performs trans‐
       fer subcommand.

REPORTING BUGS
       Report  any bugs to mailing list of ALSA community <alsa-devel@alsa-project.org> where the development and maintenance is primar‐
       ily done. Bug tracking service of alsa-utils repository on github.com is also available.

SEE ALSO
       axfer-transfer(1), axfer-list(1), alsamixer(1), amixer(1)

AUTHOR
       Takashi Sakamoto <o-takashi@sakamocchi.jp>

alsa-utils                                                  28 November 2018                                                    AXFER(1)

Usage:
  axfer transfer DIRECTION OPTIONS
  axfer list DIRECTION OPTIONS
  axfer version
  axfer help

  where:
    DIRECTION = capture | playback
    OPTIONS = -h | --help | (subcommand specific)