For a standard audio or Hi-Fi component your audio files may be just fine, but mobile phone speakers aren't Hi-Fi devices. Because of this limitation we have to adapt our files to meet the speaker capabilities.
I've said this before: a phone is just a phone.
All the other capabilities are just gadgets implemented for marketing reasons.
It is true that some of them might be useful from time to time, but how much time do we use gadget capabilities?
I'm a HI-FI junkie and i know the difference. If we want high quality pictures or music we have to use dedicated harware and software.
We tend to much to be TRENDY.