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Old 09-13-2019, 06:00 PM   #5
SonicAxiom
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Join Date: Dec 2012
Location: Germany
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AVIDemux can replace the audio stream in a video file without re-encoding (only re-muxing). You can also add another audio stream to a video while keeping the original audio stream. The resulting video will have 2 (selectable) audio streams (like a DVD that offers to choose from multiple languages). I'm using this feature after remastering a video's original audio so that the client can toggle between the original and my remastered version for convenient A/B comparison. He only needs a video player that can toggle between audio streams, preferably via a single keystroke like PotPlayer.

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