New Papers of Higg Efficiency AAC MPEG-4 from Coding Technologies.

MPEG-4 Forum Says " ITS THE BEST AUDIO CODEC OF THE WORLD"

http://www.m4if.org/public/documents/vault...4-out-30034.zip



Chencho´s Internet Radio Stations.

At these very low bitrates, that is... And the exact words in the white paper were:



By the way, the interesting news in this white paper for me was that the MPEG committee also decided to add AAC+ to the "old" MPEG-2 AAC standard. This might also show how important they consider this new technology to be.

HIGH EFFICIENCY ACC (Accplus) its a Core Component of MPEG-4. All Mpeg-4 Compatible Players will be Updated Soon. New NERO DIGITAL Includes This Encoder.

About The White Papers, and a Test from EBU, the Second Best Audio Codec is Mp3PRO, Too much Better as ACC MPEG-4 but with This New SBR Technology, Mp3PRO Must be Death soon. OGG Vorbis will Replace it.

Another Good News, NOT LICENSE Is Required to Stream with ACCplus. Its possible New Shoutcast will Include it, but Nullsoft will Pay a License (Inicial of $ 15,000 Dlls plus Fees for each Encoder to VIA)
for this Reason you need to PAY for the Stream Plugin. (not for Free as some friends told to US)
Shoutcast DNAS doesn´t Support Mp3, they are using LAME open Codec.

LICENSING FEES kill Open Source

so you mean, theres no fee to broadcast AAC+ but there is one to play it??? thats kinda strange... correct me if im wrong

The licensing conditions for plain AAC streaming have been set by Dolby, the licensing administrator for AAC, about a year ago. They changed it according to the wishes of many companies so that there's no fee for AAC streaming in the internet anymore, even if e.g. a commercial radio station or any other content provider like Apple's upcoming music service makes a lot of money while using it (with ads etc.). This is different from the license for MP3 and mp3PRO streaming, because Thomson sets a limit where commercial content providers would have to pay for using these formats (depends on the money being earned and the number of listeners).

There have been rumours that there would be new license fees demanded by the MPEGLA for the usage of the MP4 file format while streaming audio-only content, but I'm not sure that this true, because they only take care of the video/multimedia part of MPEG-4, as far as I know.

And of course there's no "fee" for receiving and listening to AAC streams in the internet for the individual user, but in my opinion it's unlikely that a company will give away this codec for free, because they had to pay for the license themselves like e.g. Nero or maybe Nullsoft. At most this could happen for the decoder, but not for the encoder.

That´s Right Hans!

Great Help.

http://www.mpegla.com/mpeg4s/

Right, they also are responsible for the Systems part of MPEG-4, and the file format MP4 belongs to that. But I can't find any information on this quite new site that would explain in detail if and how an application that produces audio-only MP4 files would fall under their licensing terms. Then Nero Burning ROM would also be affected, and I can't find Ahead Software on their licensees page.

Since all of this is fairly new (and the site seems not to be finished yet), maybe there will be some clarification between Dolby (Vialicensing.com) and MPEGLA about this issue in the future, because otherwise this would be a contradiction in my opinion. If not, streaming applications could stick to the AAC format perhaps without using the MP4 container, who knows... It's also interesting that there seems to be a time line (August 2003) until a company can license its application without having to pay the MPEGLA fees. But maybe I got that all wrong...

Can FAAD2 decode High Efficiency AAC? When I looked through the source a while back, I thought I saw some SBR stuff in there.

It was just some preliminary SBR decoding routines, that later got deleted because Menno started working on Ahead's closed SBR decoder. Probably someone else will have to code FAAD2's SBR decoder.