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HD-AAC, Fraunhofer's new codec, Claims that sound quality is better over that of CDs
rohangc
post Jan 29 2008, 05:21
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Fraunhofer states that they have come up with a new codec called HD-AAC
that allegedly provides better sound quality than audio CDs.

My question is whether we need another lossless codec after all. Don't we have excellent codecs like FLAC and TAK which are both free and open-source (FLAC at least)?

Why does everyone and his grandmother keep ringing the death-knell for CDs? As far as I am concerned, I will never buy anything only in its digital form. If I can't hold it and touch it, I won't spend money on it.

That being said, I can't see any inherent advantages of this format over FLAC which is now becoming popular even commercially. This might be yet another thing that was dead even before it was conceived...
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skamp
post Jan 29 2008, 07:15
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QUOTE (rohangc @ Jan 29 2008, 05:21) *
Fraunhofer states that they have come up with a new codec called HD-AAC
that allegedly provides better sound quality than audio CDs.

It isn't exactly new. HD-AAC is just Fraunhofer's name for MPEG-4 SLS. And it supports high-res audio (24-bit / 96 kHz), which is *technically* better than audio-CDs (let's not get into the practicality of it please, it's been beaten to death already).

QUOTE (rohangc @ Jan 29 2008, 05:21) *
My question is whether we need another lossless codec after all.

It's not just lossless: in short, you can generate lossy AAC from a (lossless) HD-AAC file on the fly, without transcoding.

QUOTE (rohangc @ Jan 29 2008, 05:21) *
Don't we have excellent codecs like FLAC and TAK which are both free and open-source (FLAC at least)?

Neither FLAC or TAK (or WavPack for that matter) provide the aforementionned feature. Also, companies such as Fraunhofer are in the business of patenting codecs and licensing them. Why do you think there's a HD DVD/Blu-ray war going on? Licensing. Big bucks. Free Software is of no interest to them.

QUOTE (rohangc @ Jan 29 2008, 05:21) *
Why does everyone and his grandmother keep ringing the death-knell for CDs?

Because CD sales are down, and the recording industry is always looking for new ways to make more money?

QUOTE (rohangc @ Jan 29 2008, 05:21) *
That being said, I can't see any inherent advantages of this format over FLAC which is now becoming popular even commercially. This might be yet another thing that was dead even before it was conceived...

See above. On the fly lossy scalability is a pretty nifty feature if you ask me. That said, since it will probably never be usuable under linux (with free as in beer encoder/decoder and software support), I'll probably have to stick with WavPack, as far as I'm concerned.

Edit: reading vlada's post, and seing that there's a Free as in speech (lossy) AAC codec, I guess there's a chance for MPEG-4 SLS support on my platform of choice after all. I'm not holding my breath though - it might take years.

This post has been edited by skamp: Jan 29 2008, 07:18


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