Re-encoding an mp4 to remove one side of audio

[Lor]

Hi,

I have a few mp4 videos where (with headphones) the left eared audio needs to be removed, but I want to keep the right eared audio. On mediainfo it says there is one audio stream, but 2 channels. Here is some info:
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : mp4a-40-2
Duration : 1 h 24 min
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R


Is there a solution to this? Would have thought the fix is relatively simple but searching online I cannot find one. As you may have guessed, I am not a particulary technical person.

Thanks very much for your help, and if there is more information required please say so.

[videobruger]

With one video and stereo audio you could try

ffmpeg -i video.mp4 -c:v copy -filter_complex "[0:a]channelsplit=channel_layout=stereo:channels=FR[right]" -map "[right]" -map 0:0 One_track.mp4

[manono]

1. Extract audio and convert to PCM WAV audio: the free AOA AudioExtractor
2. Remove the one channel followed by turning the remaining one to dual mono followed by saving as AAC audio: the free Audacity
3. Replace original audio with the new one: the free MP4Box with a GUI

[Lor]

With one video and stereo audio you could try

ffmpeg -i video.mp4 -c:v copy -filter_complex "[0:a]channelsplit=channel_layout=stereo:channels=FR[right]" -map "[right]" -map 0:0 One_track.mp4

Hi,
Please can you explain a bit more. Where would I enter this code?

[videobruger]

@Lol

This is a Command Line Interface (CLI) command.

You should have ffmpeg in your path or type the path before ffmpeg.

You open a command prompt and paste in the command.


[Attachment 51056 - Click to enlarge]

[Lor]

Thanks you all, I used @manono 's solution, and after some trial & error it worked