audacity是linux下比较早的音频处理gui，可以导出wav，mp3,ogg 等格式，操作方面──图形化的说白一点就是傻瓜式的。
#安装audacity
debian:~# apt-get install audacity
#添加 deb http://ftp.debian-unofficial.org/debian etch main contrib non-free
#到/etc/apt/sources.list
#添加公匙
debian:~# gpg -keyserver wwwkeys.pgp.net -recv-keys 394D199524C52AC3
debian:~# gpg -export -a 394D199524C52AC3 > /tmp/key
debian:~# apt-key add /tmp/key
OK
debian:~# apt-get update
#安装lame
debian:~# apt-get install libmp3lame0
#加一个链接
debian:~# ln -s /usr/lib/libmp3lame.so.0.0.0 /usr/lib/libmp3lame.so
#如果声卡不支持混音，运行audacity最好用aoss，先安装alsa-oss
debian:~# aoss audacity
