#!/bin/csh
#
# Examples for negate
#
# parameters are: (1) input sound file name
#                 (2) output sound file name
#

if ($1 == "") then
   set SOUNDDIR = ../
else
   set SOUNDDIR = $1
endif

if ($2 == "") then
   set BINDIR = ../../bin
else
   set BINDIR = $2
endif


#####
#
# Example 1 
#


# 3 periods of a 500 Hz tone:
rm -f $SOUNDDIR/temp1.wav
$BINDIR/periods $SOUNDDIR/temp1.wav >/dev/null <<EOT
500
3
0.7
EOT

# 3 periods of a 500 Hz tone inverted:
rm -f $SOUNDDIR/temp2.wav
$BINDIR/negate $SOUNDDIR/temp1.wav $SOUNDDIR/temp2.wav >/dev/null 


echo Creating $SOUNDDIR/negate1.wav

rm -f $SOUNDDIR/negate1.wav
$BINDIR/concatenate $SOUNDDIR/temp1.wav $SOUNDDIR/temp2.wav  \
   $SOUNDDIR/negate1.wav >/dev/null <<EOT
0
EOT
   


rm -f $SOUNDDIR/temp1.wav
rm -f $SOUNDDIR/temp2.wav