使用mplayer把.asf轉.wav

vi asf2wav.sh

#!/bin/bash

if [ $# = 0 ]
then
echo "usage: $0 (filename)"
exit
fi

mplayer -vo null -vc dummy -ao pcm:file=$1.wav $1

#=====
參考:
mplayer -vo help
mplayer -ao help
mplayer -vc help
mplayer -ac help