Extract audio without re-encoding.

[shampistols69]

I'd like to extract the LEFT audio from a stereo file without re-encoding. How can you do this?

[october262]

I'd like to extract the LEFT audio from a stereo file without re-encoding. How can you do this?

try with ffmpeg - ffmpeg -f alsa -i hw:1 -i /dev/video2 output.mkv

[pchan]

If prefer GUI then can try Audacity with FFMPEG.
https://manual.audacityteam.org/man/installing_ffmpeg_for_windows.html

Just drag and drop your movie into Audacity.
Shift+M and select split stereo track
Delete the track you don't need and File -> export.

[johns0]

Audacity will re-encode the file you want.

[pchan]

Audacity will re-encode the file you want.

Missed that one. My bad.

[shampistols69]

I'd like to extract the LEFT audio from a stereo file without re-encoding. How can you do this?

try with ffmpeg - ffmpeg -f alsa -i hw:1 -i /dev/video2 output.mkv

[Attachment 64272 - Click to enlarge]

I also tried putting the audio file instead of the video and it didn't work.