centos6环境下，通过命令行将midi转为mp3

安装timidity++ 与 ffmpeg

wget http://mirror.yandex.ru/fedora/russianfedora/russianfedora/free/el/releases/6/Everything/i386/os/puias-release-6-2.R.noarch.rpm
rpm -Uvh puias-release*.noarch.rpm

http://mirror.yandex.ru/fedora/russianfedora/russianfedora/free/el/releases/6/Everything/i386/os/russianfedora-free-release-6-3.R.noarch.rpm
rpm -Uvh russianfedora-free-release*rpm
yum install timidity++

yum install ffmpeg

midi转为wav

timidity test.mid -Ow -o test.wav

wav转为mp3

ffmpeg -i test.wav -acodec libmp3lame -ab 256k test-256k.mp3