Quote:
Originally Posted by bobobo
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I hope that's a typo and you mean 6 audio tracks
Anyway those aren't tracks those are channels. Like I explained earlier channels are, for example, mono, stereo, 5.1. You could have 5 stereo tracks in a video + 5 mono tracks + 5 5.1 tracks. You would then select the audio stream you want to hear in your video player when you play it back. The most common experience people have with this is when choosing a different mix - so if you've only got stereo speakers you'd have the stereo track, if you have surround speakers you'd choose the 5.1 track, or when selecting a different language track, when you get a DVD you can usually select to play back in a number of languages, each one is a separate track (in the case of a DVD it's a bit different to having all of the tracks embedded in an MP4 file but the effect is the same, each track is separate and can have a different number of channels).
Another way of thinking about it is tracks in Reaper. Your Reaper project can have multiple tracks of audio, each one can have a different channel configuration, well the same is true of some video files.