The audio file was recorded as a voice memo on my iPhone and then got downloaded to my PC as a Windows Media file, and the video got recorded on the PC using Open Broadcaster Software. I'd like to combine the audio file with the video to have it play during the video when it gets uploaded to YouTube, regardless of whether or not it overwrites the original audio of the video, but preferably not.
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How to combine a Windows Media Player audio file with a VLC Media Player video?