linux sox命令批量修改wav文件采样率，音量等

#!/bin/bash
for file in *.wav; do
	#echo $file
	c=${file}
	#echo $c
	sox -v 0.9 $c -r 16000 -b 16 -c 1 new_$c
	rm -rf $c
	mv new_$c $c
done