Few points to made across........
1. Yes it is a fact that vobris is more complex than AAC. It was never designed with that in mind. AAC ( hi, bond? a open standard ^_^ ) has huge backing from the industry which means optimazation is faster.
2. Even though HE AAC is complex, by the time these tiny devices are widely avalible to play them, there processing power has gone up and decoder would have been better. Not to mention the new Paramatric Stero mode which suppose to increase quality at low bitrate ~ 24kbps.
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