sox命令批量处理修改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