NAME

       dtmf2num - tool for decoding the DTMF and MF tones from PCM wave files

SYNOPSIS

       dtmf2num [options] files...

DESCRIPTION

       This manual page documents briefly the dtmf2num command.

       dtmf2num  supports  any  type  of  wave file (frequencies, channels and 8, 16, 24 and 32 bits), automatic
       optimizations (DC bias adjust and normalization) and both WAV and raw PCM data.

       The program has been successfully tested with many audio files and moreover with those  highly  dirt  and
       damaged, for example recorded with a microphone in a room or at a very low volumes or with some noise.

OPTIONS

       -r F C B
              Consider  the  file  as raw headerless PCM data, you must specify the Frequency, Channels and Bits
              like -r 44100 2 16

       -o     Disable the automatic optimizations: DC bias adjust and normalize.  Use this option only  if  your
              file is already clean and normalized

       -w FILE
              Debug option for dumping the handled samples from the memory to FILE

       -z P V Set specific parameters of dsp.c:
                  DTMF_OPTIMIZED_VALUE      102.00
                  DTMF_THRESHOLD            800000000.00
                  DTMF_NORMAL_TWIST         6.30
                  DTMF_RELATIVE_PEAK_ROW    6.30
                  DTMF_RELATIVE_PEAK_COL    6.30
                  BELL_MF_THRESHOLD         800000000.00
                  BELL_MF_TWIST             4.00
                  BELL_MF_RELATIVE_PEAK     12.60

                                                  April 20 2017                                      dtmf2num(1)