Tweet
Re: Convert M4P to MP3
Starting with mono and going to 2-channel stereo is no change at all, except for a second identical track being added (thus the file size doubles).
Going from 8-bit to 16-bit is the bigger change and also from 22KHz to 44.1KHz. In fact 8-bit 22KHz straight to 16-bit 44.1KHz will more than likely result in a distorted audio file, if it doesn't bomb outright. It definitely does this very audibly for very short duration files. 8-bit to 16-bit and keep the frequency fixed will be ok. Thereafter change the frequency and again it will be ok. Mind you, all this is still palying with wav. If you introduce the extra challenge of working with compressed types, there's no telling what kind of result you'll have in the end. Easy does it, one changed parameter at a time for best results.
As for the .m4p being converted to wav first, well, that depends on whether or not you can even break the protection. In that case it appears teh first conversion is to unprotected .mp4 foloowed by whatevr other conevrsions you like (say, to .wav).
Originally posted by adaywayne
Going from 8-bit to 16-bit is the bigger change and also from 22KHz to 44.1KHz. In fact 8-bit 22KHz straight to 16-bit 44.1KHz will more than likely result in a distorted audio file, if it doesn't bomb outright. It definitely does this very audibly for very short duration files. 8-bit to 16-bit and keep the frequency fixed will be ok. Thereafter change the frequency and again it will be ok. Mind you, all this is still palying with wav. If you introduce the extra challenge of working with compressed types, there's no telling what kind of result you'll have in the end. Easy does it, one changed parameter at a time for best results.
As for the .m4p being converted to wav first, well, that depends on whether or not you can even break the protection. In that case it appears teh first conversion is to unprotected .mp4 foloowed by whatevr other conevrsions you like (say, to .wav).
Comment