


VOC19(SFS1)       MISC. REFERENCE MANUAL PAGES        VOC19(SFS1)



NAME
     voc19 - JSRU style 19-channel vocoder

SYNOPSIS
     voc19 (-i item) (-f) file

DESCRIPTION
     voc19 is a straightforward implementation  of  a  19-channel
     filterbank  analyser  using two second-order section Butter-
     worth bandpass filters spaced as in Holmes  paper  published
     in  IEE  proceedings.  Energy smoothing done at 50Hz to give
     default 100Hz framerate.

     There is no limit to the length of the input signal.

     Options and their meanings are:

     -I         Identify program and version number.

     -iitem     Select input item.

     -f         Faster  frame  rate.   Sample   output   at   200
                frames/sec,  filtering  remains  at 50Hz to avoid
                pitch pulses.

INPUT ITEMS
     SP   Any speech signal sampled at greater than 8kHz.

OUTPUT ITEMS
     CO         Vocoder energies.

VERSION/AUTHOR
     2.0 - Mark Huckvale

SEE ALSO
     voc8(1), voc26(1)

SOURCE
     /ptemp/mark/sfs/ucl/voc19.c
















SFS                     Last change: UCL                        1



