AXFER - Online Linux Manual PageSection : 1
Updated : 28 November 2018
Source : alsa−utils

NAMEaxfer − command−line sound recorder and player for sound devices and nodes supported by Linux sound subsystem (Advanced Linux Sound Architecture, also known as ALSA).

SYNOPSYSaxfer subcommand direction options subcommand = transfer | list | version | help direction = capture | playback options = ( depends on subcommand )

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

OPTIONS

Subcommandtransfer  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.

Directioncapture  Operates for capture transmission. playback  Operates for playback transmission.

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

UNIT TESTThis program has unit tests for internal implementation. Please refer to the manual of axfer-transfer for details.

COMPATIBILITY TO APLAYThe 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] pointsWhen 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 subcommandOptions of −l , −−list−devices , −L , −−list−pcms are acknowledged as list subcommand. Without them, the run time performs transfer subcommand.

REPORTING BUGSReport any bugs to mailing list of ALSA community <alsa−devel@alsa−project.org> where the development and maintenance is primarily done. Bug tracking service of alsa−utils repository on github.com is also available.

SEE ALSOaxfer−transfer(1), axfer−list(1), alsamixer(1), amixer(1)

AUTHORTakashi Sakamoto <o−takashi@sakamocchi.jp>
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Johanes Gumabo
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