aecho(1)							     aecho(1)



NAME
  aecho	- An AF	play/record client.

SYNOPSIS
  aecho	[-d device]

DESCRIPTION
  aecho	reads samples from stdin and sends the sound data to the audio server
  for playback.	It simultaneously records, with	the record data	sent to
  stdout.  The play and	record operations are synchronized (i.e. the audio
  time of the first playback sample is the audio time of the first record
  sample).

  aecho	is useful for experimenting with room acoustics, and debugging audio
  hardware.

OPTIONS

  -d device

       Specifies which audio device to use for playback	and recording.	If
       device is not specified,	aecho defaults to the first device that	isn't
       connected to the	telephone.

ENVIRONMENT

  AUDIOFILE	 specifies the host and	server to use.

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
  AF(1), aplay(1), arecord(1)

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

AUTHORS
  Andrew Payne,	Digital	Cambridge Research Lab,	(payne@crl.dec.com)