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


       dtmfcheck - Scan a wav file for DTMF tones


       dtmfcheck [ --block size ] file


       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.


       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.


       Ron Lee, Voicetronix <>

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