I tried everything I could find on the internet but the only real result I got is getting both tracks to be in the final MP4 by using ffmpeg -i "video.mp4" -c:v h264 -c:a mp3 -map 0 -ss 00:59 "../video.mp4"
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What I want is take the two audio tracks in my input file and merge them into a single one in the output file.