HELLO I use avcode_decode_audio4 to decode audio file ,but I don't know why the pcm file I got has a lot of noise ,who can help me? THANKS -- View this message in context: http://libav-users.943685.n4.nabble.com/using-avcode-decode-audio4-error-tp4657394.html Sent from the libav-users mailing list archive at Nabble.com.