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AUDIAL(1)		     General Commands Manual		       AUDIAL(1)

NAME
     audial - generate or recognize touch tones for North American telephones

SYNOPSIS
     audial  [-audio servername] [-volume 0-100] [-spacing milliseconds] [-pause
     milliseconds] [-duration milliseconds] dialstring

     audial -recognize [-microphone] [-gain 0-100] [-time seconds]

DESCRIPTION
     The audial program generates touch tones suitable for dialing a North Amer-
     ican telephone.  audial can also recognize touch tones and produce the cor-
     responding string.

GENERAL OPTIONS
     The following options may be used in either dial or recognition mode:

     -audio servername
	     This option specifies the Network Audio System server on which  the
	     files should be played.

DIAL OPTIONS
     The following options may be used in dial mode:

     -volume 0-100
	     This option specifies the volume at which the data should be played
	     as a percentage of the maximum possible volume.  The default is 100
	     percent.

     -spacing milliseconds
	     This option specifies the number of milliseconds to wait in between
	     each digit.  The default is 100.

     -pause milliseconds
	     This option specifies the number of milliseconds to wait whenever a
	     comma (,) is used in a dial string.  The default is 400.

     -duration milliseconds
	     This  option  specifies  the duration of each tone in milliseconds.
	     The default is 100.

DIALING STRING
     The following characters may be used in a dialing string:

     0123456789*#
	     The corresponding touch tone is generated.

     abcd    Tones representing the 4 "function" keys often found  on  a  keypad
	     are generated.

     ,	     A blank tone whose length is specified by the -pause option is gen-
	     erated.

     Any other characters are ignored.

RECOGNITION OPTIONS
     -recognize
	     Enables  recognition  mode.  audial will attempt to recognize touch
	     tones from the input device and output the corresponding character.

     -microphone
	     Use microphone gain levels on the audio input device.  If a  micro-
	     phone  is	plugged into the audio input jack, this option should be
	     used.

     -gain 0-100
	     This option specifies the input gain level.  The default is 95.

     -time seconds
	     This option specifies how long to attempt the recognition.  The de-
	     fault is forever.

ENVIRONMENT VARIABLES
     The following environment variables are used by audial:

     AUDIOSERVER
	     This specifies the name of default audio server to  contact  if  no
	     name is explicitly given on the command line.

     DISPLAY
	     This  specifies  the name of an X Window System display that should
	     be assumed to  also  have	a  corresponding  Network  Audio  System
	     server.

SEE ALSO
     nas(1)

COPYRIGHT
     Copyright 1993, 1994 Network Computing Devices, Inc.

AUTHORS
     Greg Renda, Network Computing Devices, Inc.
     Kevin Martin, Network Computing Devices, Inc.

				      1.9.4			       AUDIAL(1)

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