MacOS Video Editing – Best Audio/Video Editor for macOS

audiovideo editing

I have a short MP4 video (with sound), and a separate short MP3 file. I am looking for a way to replace the audio of the first file with the audio of the second one.

Is there a lightweight app solution for doing it on a Mac?

Best Answer

If lightweight means command line, then get ffmpeg

https://brew.sh - install homebrew package manager
brew install ffmpeg
profit

See any of the plethora of tutorials online or questions on the network :

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MacOS Audio Converter – Top Choice for MP3 File Conversion

My favorite converter is XLD. It converts to flac, splits cue files, it supports metadata correction (using CDDB), and embeds album artwork. It is the closest I could find to dBpoweramp.

Split audio and video into two separate files

ffmpeg supports demuxing without re-encoding:

ffmpeg -i input.mkv # show stream numbers and formats
ffmpeg -i input.mkv -c copy audio.m4a # AAC
ffmpeg -i input.mkv -c copy audio.mp3 # MP3
ffmpeg -i input.mkv -c copy audio.ac3 # AC3
ffmpeg -i input.mkv -an -c copy video.mkv
ffmpeg -i input.mkv -map 0:a:1 -c copy audio.m4a # stream 1

-c copy is like -vcodec copy -acodec copy. -map 0:1 means file 0, stream 1. -an means audio none.

-- Edited: -map 0:1 => -map 0:a:1 (pick 2nd audio not just 2nd any stream)

Best Answer

Related Solutions

MacOS Audio Converter – Top Choice for MP3 File Conversion

Split audio and video into two separate files

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