[Matroska-devel] Re: [mpc-devel] Re: Protocol of my 2+ hrs telephone conversation with Frank Klemm

Steve Lhomme steve.lhomme at free.fr
Tue Nov 18 21:10:30 CET 2003

Roberto José de Amorim wrote:

>  --- Christian HJ Wiesner <chris at wiesneronline.net> escreveu: 
>>Apart from the better hardware 
>>decoder support in existing DVD players and Surround receivers, i 
>>personally cant see any reason to not use AAC for a new encoder format.
> There is a rumour going around (and I stress this is only a rumour)
> that you can detect by reading the mpegif mailing lists, about Sony
> and Philips pushing AAC as the standard audio codec for Blu-Ray DVDs.
> It makes sense, if you consider Philips and Sony have licensing 
> interests in the AAC format, while AC3 is only of interest for Dolby.
> Besides, AAC is more efficient - you need about 300kbps to store
> a 5.1 stream with good quality, while AC3 is usually encoded at
> 448kbps for 5.1 - a 50% increase in size.
> Another hint of this tendency is the receiver Sony recently released
> that supports multichannel AAC LC decoding. It has been mentioned at 
> Hydrogenaudio:
> http://www.hydrogenaudio.org/index.php?showtopic=10222&
> Anyway, just some rumours...

It also makes sense to me as AAC seem to be the one format for 
low/medium/high bitrates. It's very good (compared to the past) at all 
levels. So IMO it makes sense to try to push it everywhere.

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