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#!/bin/sh
# the next line restarts using wish \
exec wish8.5 "$0" "$@"
# This file shows how to handle CSL/NSP files with both A and B data chunks
package require -exact snack 2.2
set filename CSL_file_with_A_and_B_chunks.nsp
# Read in file using Snack's CSL/NSP decoder, which only gets channel A
# This is done in order to determine the number of samples in each channel
snack::sound s -load $filename
set end [expr [s length] - 1]
# Now read channel A by treating the file as raw data skipping initial
# headers and write it out in a file of its own
s read $filename -fileformat raw -skip 60 -end $end
s write channel_A.wav
# Read channel B by skipping channel A and initial headers and write it
s read $filename -fileformat raw -skip [expr 60 + $end * 2 + 8] -end $end
s write channel_B.wav
exit
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