#!/bin/sh
#####################################################-*-mode:shell-script-*-
###                                                                       ##
###                    Alan W Black and Kevin Lenzo                       ##
###                         Copyright (c) 1998                            ##
###                        All Rights Reserved.                           ##
###                                                                       ##
###  Permission to use, copy, modify,  and licence this software and its  ##
###  documentation for any purpose, is hereby granted without fee,        ##
###  subject to the following conditions:                                 ##
###   1. The code must retain the above copyright notice, this list of    ##
###      conditions and the following disclaimer.                         ##
###   2. Any modifications must be clearly marked as such.                ##
###   3. Original authors' names are not deleted.                         ##
###                                                                       ##
###  THE AUTHORS OF THIS WORK DISCLAIM ALL WARRANTIES WITH REGARD TO      ##
###  THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY   ##
###  AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY         ##
###  SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES            ##
###  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   ##
###  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          ##
###  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       ##
###  THIS SOFTWARE.                                                       ##
###                                                                       ##
###  This file is part "Building Voices in the Festival Speech            ##
###  Synthesis System" by Alan W Black and Kevin Lenzo written at         ##
###  Robotics Institute, Carnegie Mellon University, fall 98              ##
############################################################################
###                                                                       ##
###  Generate LPC coefficients and residual for diphones (or otherwise)   ##
###                                                                       ##
############################################################################

if [ ! "$ESTDIR" ]
then
   echo "environment variable ESTDIR is unset"
   echo "set it to your local speech tools directory e.g."
   echo '   bash$ export ESTDIR=/home/awb/projects/speech_tools/'
   echo or
   echo '   csh% setenv ESTDIR /home/awb/projects/speech_tools/'
   exit 1
fi

for i in $*
do
   fname=`basename $i .wav`
   echo $i

   # Potential normalise the power (a hack)
   $ESTDIR/bin/ch_wave -scaleN 0.5 $i -o /tmp/tmp$$.wav
   # or if you want to resample, now is the time (can be combine with above)
   #$ESTDIR/bin/ch_wave -F 11025 $i -o /tmp/tmp$$.wav
   # Or use as is
   #cat $i >/tmp/tmp$$.wav
   $ESTDIR/bin/sig2fv /tmp/tmp$$.wav -o lpc/$fname.lpc -otype est_binary -lpc_order 16 -coefs "lpc" -pm pm/$fname.pm -preemph 0.95 -factor 3 -window_type hamming
   $ESTDIR/bin/sigfilter /tmp/tmp$$.wav -o lpc/$fname.res -otype nist -lpcfilter lpc/$fname.lpc -inv_filter
   rm /tmp/tmp$$.wav
done