Compression for reducing file size to play on iPad
I'm wondering if anyone can shed some light on some compression best practices.
For example - I know with graphics, it always makes sense to crop and scale graphics outside of Storyline before bringin in (rather than using the crop feature within Storyline) because SL retains the whole file.
Is there anything like this for audio or video? My understanding is that SL automatically converts the audio to mp3, so is there any way to make the files in the published output even smaller? Would it help to have them as mp3 before bringing into SL for an added layer of compression? What about video? Is this the same thing?
Another thing - is there any research that shows a custom programmed menu (rather than using the SL player) reduces file size?