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audial - generate or recognize touch tones for North American telephones
audial [-audio servername] [-volume 0-100]  [-spacing milliseconds]
[-pause milliseconds]  [-duration milliseconds] dialstring 
audial -recognize
[-microphone] [-gain 0-100] [-time seconds] 
The audial program generates
touch tones suitable for dialing a  North American telephone.  audial can
also recognize touch tones and produce the corresponding string. 
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. 
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. 
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 generated.  
Any other characters are ignored. 
- -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 microphone
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 default
is forever. 
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. 
nas(1)
Copyright 1993, 1994 Network Computing Devices, Inc. 
Greg
Renda, Network Computing Devices, Inc.
Kevin Martin, Network Computing Devices, Inc. 
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