I have a mkv file which contain 3 streams. I use ffprobe to get the info of my mkv file.
I got this output
Input #0, matroska,webm, from './demo/test2.mkv': Metadata: encoder : libebml v0.7.7 + libmatroska v0.8.1 creation_time : 2011-02-16T16:06:17.000000Z Duration: 00:03:41.08, start: 0.000000, bitrate: 1363 kb/s Stream #0:0: Video: rv40, yuv420p, 720x480, SAR 1:1 DAR 3:2, 29.97 tbr, 1k tbn, 1k tbc (default) Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp (default) Stream #0:2: Audio: aac (LC), 48000 Hz, stereo, fltp
The audio streams should be vocal and background music. I would like to extract them from the video.
I have try to do so with those command
ffmpeg -i ./demo/test2.mkv -map_channel 0.1.0 -y ch0.wav -map_channel 0.2.0 -y ch1.wav
However, it output the same audio file. Is there any mistake I have made? Thanks a lot.