Standard AAC is on a par with Ogg Vorbis in my opinion, but it depends what type of encoder you are using as there are several. The only "free" encoder I know of doesn't use all the AAC techniques to provide the best sound quality and is worse than OV. The thread I started the other day was about AACPlus and not AAC. AACPlus provides much improved sound quality over standard AAC, and OV unfortunately. But based on Monty's comments, he may be (hopefully!) re-directing his attention back to Vorbis for a while and OV will eventually regain the lead in the sound quality versus bitrate wars. Regards, Ross. ----- Original Message ----- From: "ZONA" <carlos@zonacharrua.com> To: <icecast@xiph.org> Sent: Wednesday, March 09, 2005 1:43 PM Subject: [Icecast] vorbis ogg vs. aac Hi folks: this is my second question at this list and I wanted to mention that with answers and guides I got from 2 persons last time, I got a quite low rate stream in vorbis ogg, in about 5 minutes after reading what you wrote- Thanks! Well after that, I pointed my attention to the so called AAC, and after tweaking a bit I got my AAC stream up and connected to Icecast serv. I was a bit dissapointed about AAC, as I thought this was better encoding/compression than OGG. I alpologise if I express my selv badly about the technical detail, but the thing is that at low bitrates (lets say between 20 and 80 kbps) OGG sounds a lot better than AAC. As I still believe AAC is a really good one, maybe somebody can tell a little about where or how I can get the best result with it. (I can hear an anoying sound "behind" the good one, something like metal/glass chorus at low rates with aac). Thanks: CC