Is there any quick way I can compress the audio of a video file alone?

[Unlaminator]

Basically, I have hundreds of videos with uncompressed audio. I'd like some way to compress just their audio down to AAC or MP3, but leave the video stream completely intact. I know I can demux, compress, then remux, but that's kind of a pain for hundreds of videos. What should I do instead?

[Safesurfer]

You could use Avidemux, with the Video set to "Copy".

[videobruger]

You could use MediaCoder. Add your files. On the Video-tab select Copy Video. On the Audio tab select MP3 (or LC-AAC). On the container tab select MP4. Press the Start button.

[Hoser Rob]

I'd probably use avidemux myself ... nothing against mediacoder,l don't know it much.

But this sounds like a lot of effort if you're talking about hundreds of files. The audio portion of those file is very small compared to the video. Just how short of drive space are you?

I prefer to use ac3 passthru for my dvd rips because youjust get better quality if you don't reencode ... all encoding loses quality. With some things I find it makes a difference.

[poisondeathray]

maybe with an ffmpeg batch script