I have no technical understanding over how OGG Vorbis works, so here's some random thought.HE-AAC sounded great because of SBR.Try encode 48kbps AAC using LC profile, the quality sounded far worse than OGG Vorbis at 48kbps (AoTUV5).I'm a Vorbis fan, I just feel a bit dissapointed the HE-AAC clearly outperforms OGG Vorbis at 32kbps/48kbps.
Can someone tell me if the extreme variability of Ogg Vorbis VBR poses problems for use in streaming, as on the internet, satellite or cellular phone networks?
Honestly I do not see the connection between SBR and noise normalization.
So, is there any project to create an open source tweak system to enhance hi-fi--ness at rates under 50 kbps? My understanding is that incorporating SBR and PNS in Ogg Vorbis is possible, but would require royalty payments. And I think Thomson has patents to wall off some tricks in its MP3Pro...So, what alternatives can keep open source codecs competitive?