Mplayer Identify Audio Channels

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MPlayer

http://www.mplayerhq.hu/DOCS/man/en/mplayer.1.html

Select audio channel (MPEG: 0-31, AVI/OGM: 1-99, ASF/RM: 0-127, VOB(AC-3): 128-159, VOB(LPCM): 160-191, MPEG-TS 17-8190). MPlayer prints the available audio IDs when run in verbose (-v) mode. When playing an MPEG-TS stream, MPlayer/MEncoder will use the first program (if present) with the chosen audio stream.-ausid (also see -alang)

3.10. Channel manipulation - MPlayer

http://www.mplayerhq.hu/DOCS/HTML/en/advaudio-channels.html

mplayer filename-af channels=2:2:0:1:0:0 The advantage this example has over extrastereo is that the volume of each output channel is the same as the input channel. The disadvantage is that the suboptions must be changed to "2:2:1:0:1:1" when the desired audio is in the right channel. Also, it is more difficult to remember and type.

ffmpeg - mplayer output 4 audio channels to jack - Stack ...

https://stackoverflow.com/questions/19950084/mplayer-output-4-audio-channels-to-jack

mplayer -channels 4 -ao jack:noconnect 4chn_file.wav. did the trick. The -ao jack:noconnect means: -ao audio-output: jack noconnect: prevent mplayer to make 1-to-1 connections. As I have 2 different stereo audio sound cards, mplayer was only giving me 2 channels. And this option disables that start behavior.

MPlayer(1) manual page

http://tivo-mplayer.sourceforge.net/docs/mplayer-man.html

Select audio channel [MPEG: 0-31 AVI/:OGM: 1-99 ASF/:RM: 0-127 VOB(AC3): 128-159 VOB(LPCM): 160-191] MPlayer prints the available IDs when running in verbose (-v) mode. -alang <two letter country code> (also see -aid option) Works only for DVD playback.

shell - Using mplayer to determine length of audio/video ...

https://stackoverflow.com/questions/497681/using-mplayer-to-determine-length-of-audio-video-file

The MPlayer source ships with a sample script called midentify, which looks like this: #!/bin/sh # # This is a wrapper around the -identify functionality. # It is supposed to escape the output properly, so it can be easily # used in shellscripts by 'eval'ing the output of this script.

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