win_filt.tes

speech signal process tools

#!/bin/sh
# @(#)win_filt.tes	1.1 9/7/93 

USE_ESPS_COMMON=off;export USE_ESPS_COMMON
ESPS_VERBOSE=0;export ESPS_VERBOSE

outfile='/tmp/out'
donefile='/tmp/done'

#------LOW PASS
echo "Low pass filter, visually inspect"
echo " cutoff frequency at 1800, with transition band 20 Hz"
cat >> $donefile << END
float samp_freq = 8000.000000;
int nbands = 2;
float band_edge1 = 0.000000;
float band_edge2 = 1800.000000;
float band_edge3 = 4000.000000;
float band1_des = 1.000000;
float band2_des = 0.000000;
float rej_db = 20.000000;
float trans_band = 100.000000;
END
win_filt -P$donefile  $outfile
filtspec -ml $outfile - |plotspec -

#--------WINDOW_METH HIGHPASS -------------------
echo "high pass filter, visually inspect"
echo " cutoff frequency at 1800, with transition band 20 Hz"
cat >> $donefile << END
float samp_freq = 8000.000000;
int nbands = 2;
float band_edge1 = 0.000000;
float band_edge2 = 1800.000000;
float band_edge3 = 4000.000000;
float band1_des = 0.000000;
float band2_des = 1.000000;
float rej_db = 20.000000;
float trans_band = 100.000000;
END
win_filt -P$donefile  $outfile
filtspec -ml $outfile - |plotspec -

rm $outfile
rm $donefile