Hi,

Is there an easy way to replace audio in a video without re-rendering video? I want to replace bad quality audio with 44100 Wave file, but keep original video. I did some reasearch and tried avidemux and Joyoshare freeware with no success.

Regards
Jan

Technically yeah you could if you had the right setup. It would involve a couple of devices to split the video and audio streams first, replace the audio with your new file, and then re-capture the two, sync-locked on a separate capture device. So technically in that case you wouldn't be re-rendering, just recapturing.

Overkill though when you could just replace the audio and re-render in something like Premiere Pro, with attention to details. You afraid that doing this is going to ruin your video or something? PP's video renderer is pretty good for stuff like that with minimal artifacts.

I believe if your source file and destination codec settings are identical, there is no re-rendering, unless something changed, like the audio.

Yes, I am afraid re-rendering will decrease video quality. It did when i tried it in my personal amateur manner. Unfortunatly my knowlege and tools in video editing is minimal.

Well, there is a lot to pay attention to, and there are certainly many places you mighta messed up on the re-render. Or not, tough to say. But I can assure you after using PP for many many years, I am very happy with exactly that... re-render capability. It is very good in PP. Had to deal with this all the time for one client.

But you also could just hire out a video house to do it for you, and see if someone with a bit more experience could get better results that satisfy. If it's a really long video (you did say film), and gonna be expensive cause you got audio resyncing issues, audio edits, etc., then perhaps you might consider a recapture device setup. Or find someone a lot cheaper. Or get PP yourself and try it. Requires subscription to their services however, be warned. Works for me though. I got access to the entire suite for about 56 bucks a month. It is the ONLY thing I subscribe to in the A/V production world, cause I need it occasionally for videos on my YT channel. Powerful set of tools, for sure.

Thank you. What does PP stands for?

Adobe Premiere Pro.

Final Cut Pro is also another top tier program.

You can also do it in Wavelab 11 Pro.