#!/bin/sh
#####################################################-*-mode:shell-script-*-
##                                                                       ##
##                   Carnegie Mellon University and                      ##
##                   Alan W Black and Kevin A. Lenzo                     ##
##                      Copyright (c) 1998-2000                          ##
##                        All Rights Reserved.                           ##
##                                                                       ##
##  Permission is hereby granted, free of charge, to use and distribute  ##
##  this software and its documentation without restriction, including   ##
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##  distribute, sublicense, and/or sell copies of this work, and to      ##
##  permit persons to whom this work is furnished to do so, 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.                         ##
##   4. The authors' names are not used to endorse or promote products   ##
##      derived from this software without specific prior written        ##
##      permission.                                                      ##
##                                                                       ##
##  CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK         ##
##  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      ##
##  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   ##
##  SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE      ##
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##  THIS SOFTWARE.                                                       ##
##                                                                       ##
###########################################################################
##
## extract wav from stereo recordings (check LAR really is channel 1)
##

if [ $# = 0 ]
then
   echo "Extract wave signal from recordings"
   echo "Usage:  bin/get_wavs recording/*.wav"
   echo "Extract track 0 (first track) from stereo recordings into wav/"
   exit 1
fi

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 $fname
   $ESTDIR/bin/ch_wave -c 0 $i -otype riff -F 16000 -scaleN 0.65 -o wav/$fname.wav
done