aplay

SYNOPSIS

       arecord [flags] [filename]

SYNOPSIS

       aplay [flags] [filename [filename]] ...

DESCRIPTION

       arecord is a command-line soundfile recorder for the  ALSA
       soundcard  driver.  It  supports  several file formats and
       multiple soundcards with multiple devices.

       aplay is much the same, only it plays instead  of  record­
       ing.  For  supported soundfile formats, the sampling rate,
       bit depth, and so forth can  be  automatically  determined
       from the soundfile header.

INVOKING

       [arecord | aplay ] [flags] filename

       If filename is not specified, the standard output or input
       is used. The aplay utility accepts multiple filenames.

   Options
       -h, --help
              Help: show syntax.

       --version
              Print current version.

       -l, --list-devices
              List all soundcards and digital audio devices

       -L, --list-pcms
              List all PCMs defined

       -D, --device=NAME
              Select PCM by name

       -q --quiet
              Quiet mode. Suppress messages (not sound :))

       -t, --file-type TYPE
              File type (voc, wav, raw or au)

       -c, --channels=#
              The number of channels

              Sampling rate in Hertz.

       -d, --duration=#
              Interrupt after # seconds

       -s, --sleep-min=#
              Min ticks to sleep

       -M, --mmap
              Mmap stream

       -N, --nonblock
              Nonblocking mode

       -F, --period-time=#
              Distance between interrupts is # microseconds

       -B, --buffer-time=#
              Buffer duration is # microseconds

       --period-size=#
              Distance between interrupts is # frames

       --buffer-size=#
              Buffer duration is # frames

       -A, --avail-min=#
              Min available space for wakeup is # microseconds

       -R, --start-delay=#
              Delay for automatic PCM  start  is  #  microseconds
              (relative to buffer size if <= 0)

       -T, --stop-delay=#
              Delay for automatic PCM stop is # microseconds from
              xrun

       -v, --verbose
              Show PCM structure and setup.  This option is accu­
              mulative.   The  VU meter is displayed when this is
              given twice.

       -I, --separate-channels
              One file for each channel

   Example:
              aplay -c 1 -t raw -r 22050 -f mu_law foobar

              will play the raw  file  "foobar"  as  a  22050-Hz,
              mono, 8-bit, Mu-Law .au file.

SEE ALSO

       alsamixer(1), amixer(1)

BUGS

       Note that .aiff files are not currently supported.

AUTHOR

       arecord  and  aplay are by Jaroslav Kysela <perex@suse.cz>
       This document is  by  Paul  Winkler  <zarmzarm@erols.com>.
       Updated     for     Alsa     0.9     by    James    Tappin
       <james@xena.uklinux.net>

                          2 August 2001                  APLAY(1)