aplay(1)							     aplay(1)



NAME
  aplay	- An AudioFile play client.

SYNOPSIS
  aplay	[-d device] [-t	time] [-g gain]	[-e encoding] [-f ] [-c] [-b] [-l]
  [file]

DESCRIPTION
  aplay	reads samples from file, or stdin if file is not specified, and	sends
  the sound data to the	audio server for playback.  The	file is	assumed	to be
  of a sample format appropriate for the playback device.

OPTIONS

  -d device

       Specifies which audio device to play the	sound file through.  If	dev-
       ice is not specified, aplay defaults to the first device	that isn't
       connected to the	telephone.

  -t time

       time can	be used	to adjust the audio device time	at which the the
       aplay client begins to play the sound data.  A positive value of	time
       will begin playing time seconds in the future.  If time is negative,
       time seconds of sound data will be "thrown away".  The default is 0.1
       seconds.

  -e ncoding

       encoding	will specify the type of the data being	read from the file or
       standard	input.	Legal values are described in the audio.h header
       file, and may be	obtained via aplay -e xxx.  The	-e flag	simply
       informs the AF server of	the datatype.Some encodings may	fail if	they
       are not supported by the	AF server.  See	also aconvert(1).

  -g gain

       A gain in dB can	be used	to attenuate or	amplify	the sound data prior
       to mixing in the	audio server.

  -f

       The -f switch turns on flush mode, which	forces aplay to	wait until
       the last	sound has been played before exiting.

  -c

       The -c switch instructs aplay to	play to	the canonical sound bytes
       shipped with the	AF kit.	This switch depends on the SOUND_PATH
       environment variable.

  -b

       Specifies that for 16 bit data, the bytes are in	"Big Endian" byte
       order (e.g. Sparc, RIOS,	PA).

  -l

       Specifies that for 16 bit data, the bytes are in	"Little	Endian"	byte
       order (e.g. Alpha, Intel	x86, VAX).

  file

       aplay attempts to read from file	in the current working directory or
       from SOUND_PATH/file if the SOUND_PATH environment variable is set.

ENVIRONMENT

  AUDIOFILE	 specifies the host and	server to use.

  SOUND_PATH	 specifies a directory to look for file	if not in the current
		 working directory.

BUGS
  There	is no way to play back a file in preempt mode.

  If you encounter a reproducible bug, please submit a problem report to
  (af-bugs@crl.dec.com).

SEE ALSO
  AudioFile(1),	arecord(1)

COPYRIGHT
  Copyright 1992-1994, Digital Equipment Corporation.
  See AudioFile(1) for a full statement	of rights and permissions.

AUTHORS
  Digital Cambridge Research Lab