Hi there! Looking for some expert advice on this: How do I take the audio track from one video and add it to another video? And keep it as intact as possible in the process, ie no recoding. Two video files are not necessarily of the same format, and the required software and hardware are not an issue. Please just tell me how to do it.
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I would have thought that with a moniker like yours you would already know how to do this:
1. Demultiplex (aka demux) & extract the audio stream from its MM container to a raw stream
2. Re-multiplex (aka remux) the audio stream into the 2nd video container
Which apps to use depends mainly on the container.
Example of container formats, and the app I might use:
AVI - AVIMux-GUI
MKV - MKVToolnix
MP4 - YAMB or QuicktimePro
MOV - QuicktimePro
WMV - WM Stream Editor
MPG - ImagoMpeg-Muxer or TMPGEnc
ffmpeg can do a whole lot of these.
As long as you are careful, there should be NO re-encoding.
Can't help further until we get more info.