#!/bin/sh
 tmpfile=/tmp/rescale$$.wav
 for i in *.wma; do 
	wav=$(basename $i .wma).wav
	sln=$(basename $i .wma).sln
	gsm=$(basename $i .wma).gsm
	ffmpeg -i $i -ar 8000 $wav
	sox $wav -t raw -r 8000 -s -2 -c 1 $sln
	scale=$(sox $wav /tmp/foo.wav stat -v 2>&1)
   	if [ $scale != "1.000" ]; then
     		echo -n "Rescale $i..."
	     	cp $wav $tmpfile
     		sox $tmpfile -v $scale $wav
     		echo
   	fi
done 
for i in *.wav; do sox $i -r 8000 -c 1 $gsm resample -ql; done