Provided by: vpb-utils_4.2.54-1_amd64 bug


       tonedebug - Test parameters for the libvpb programmable tone detector


       tonedebug [options]


       The  tonedebug  utility  assists with quickly testing tone detector parameters against the
       signals they are intended to detect.  It has three main modes  of  operation  for  testing
       single  continuous  or  pulsed  tones,  or  for  testing  a  set of tones specified in the


       The following common options apply for all modes:

       --card number
              Explicitly select the card to test.  Default is card 0.

       --port number
              Explicitly select the port to test. Default is port 0 of the card being tested.

       -w wavfile
              Specify a wav file to play the tones from.  For OpenLine and  OpenSwitch  cards  it
              should be played to an FXO port with no phone line connected, and the tone detector
              will process the reflected signal from the hybrid circuit.  The OpenPCI cards  have
              almost  no  echo  from  this circuit, but an on hook phone connected to an FXS port
              should produce a detectable echo signal.

       -s filename.c
              Writes out a C function that can be included in your own code to configure the tone
              generator with the settings being tested.

   Environment options
       To  run  tonedebug  using  the settings specified with the VPB_TONE environment variables,
       call it with the -e option.  For example:

        $ tonedebug -e --port 4 -w my.wav

       Will use the enviroment settings to try and detect tones from my.wav played into port 4 of
       card 0.  There are no other options specific to this mode.

   Continuous tone options
       If  passed  the  -c option, then the tonedebug utility will test parameters suitable for a
       continuous tone.  For example:

        $ tonedebug -c 425 100 2000 -w dialtone.wav -t dial

       Will try to detect 2 seconds of 425Hz tone from dialtone.wav, played into port 0  of  card
       0.   If  it succeeds it will report a dial event.  The following additional options may be
       used in this mode:

       -c center-freq bandwidth duration
              Specifies the primary tone characteristics, its frequency and bandwidth in Hz.  and
              its minimum duration in milliseconds.

       -d center-freq2 bandwidth2
              Specifies the second tone of a multi-frequency tone.

       -q twist
              Specifies the twist of a multi-frequency tone.

       -n snr Specifies the acceptable signal to noise ratio, in dB.

       -t dial | busy | ringback
              Specifies the name of a predefined tone to replace with the given settings.

   Pulsed tone options
       The  -p  options  will enable testing for pulsed tones.  In addition to the common options
       and the options for continuous tones, the following options are supported in this mode:

       -p center-freq bandwidth on-time
              Specifies the primary tone characteristics, its frequency and bandwidth in Hz.  and
              its 'on' time in milliseconds.

       -off  off-time
              The 'off' time of the pulse in milliseconds.




       We  rely  on  an  echo  from the hardware to feed the signal into the tone detector.  This
       should be fixed to feed it in directly at some stage in the future.


       Ron Lee, David Rowe, Voicetronix <>

       This manual page was written by Ron <>, for the Debian project (but  may  be
       used by others).