Building an audio preset

I think it's important for us to take a brief moment and look at some of…the audio settings.…If you're doing any sort of documentation or instructional-based video, you may…find that the audio of it is an item that's worth distributing--…it's worth getting out to people.…So I've started up Compressor and I'm going to go ahead here and just take my starting point.…Really, this should be your video, and not the starting point, especially for this,…because this is more of a little promo than it is an instructional video.…I'm going to open up my Apple settings here, and under Audio Formats, I have a…number of formats. I just want to give a short explanation of a couple of…their uses, and then I'll end up picking MP3, and I'll explain why.…

When you buy something from the iTunes store, it's in AAC format.…This is an MPEG-4 audio file.…It probably has some of the best compression.…You can actually go fairly small with audio with it for this.…AC3 is predominantly used in Dolby Digital. It'll be on a DVD.…