dtmfcheck - Scan a wav file for DTMF tones

       Ron Lee, Voicetronix <support@voicetronix.com.au>

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

VPB driver package                                Oct 11, 2007                                      DTMFCHECK(1)

       The dtmfcheck utility scans for valid DTMF in a test file.  It may be used to analyse recordings of audio
       where DTMF tones have either failed to be detected or have been improperly detected.

       In the latter case the --block option may be useful to zero in on the precise point in the file where the
       troublesome audio occurs.

       dtmfcheck - Scan a wav file for DTMF tones

       The following options are available:

       --block size
              Set the block size (in bytes) sent to the DTMF detector for processing.  The default (and maximum)
              value  is  32768  (2  seconds  of audio), but smaller values may be given to more precisely locate
              where in a file a particular tone is detected.

dtmfcheck [ --blocksize ] file