I'm trying to convert the audio of an live rtmp but facing to cut every 5/8 sec and sample rate doesn't seems to be ok even if I use the same of speex ffmpeg -i rtmp://server/app/live -acodec -ar 48000 -b:a 128k -vcodec copy -y output.mkv However I'm sure that the live stream itself doesn't have audio cut... Thanks Franck