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Mr. Nice Guy
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"I'm gonna speak softly, but carry a BIG STICK!!!"
Mar 2002 time: 23:31
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quote: Originally posted by Asher
MP3, AAC, and WMA are all proprietary standards. OGG is an open standard.
And AAC isn't the successor to MP3, MP3 Pro is. 
WMA and AAC are both far more advanced than MP3, unfortunately WMA is more advanced than AAC and also far cheaper.
WMA is the cheapest of the three to use, AAC is the most pricey, and MP3 is in the middle.
That's the reason all of the DVD, CD, etc. players coming out support WMA rather than AAC.
In addition to AAC costing the most to license for portable MP3 players, the AAC files Apple uses use their proprietary DRM which means they won't play on standard AAC players. The portable audio players won't pay for and add AAC support when basically the only market for AAC is iTunes, and Apple won't license out iTunes' DRM for others to use.
Hence only the iPod supports, and likely will support, AAC. Everyone else will support WMA in addition to MP3, and maybe OGG.
Apple's slowly but surely going to screw themselves out of the market with this policy, like they've done with the Macintosh. |
I stand by my word. Or else you're gonna have to prove it.
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Q Cubed
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t3h y3ll0w p3ril
Apr 1999 time: 23:31
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quote: I stand by my word. Or else you're gonna have to prove it. |
ok, mr nice guy:
re: .mp3 / mp3pro proprietary standard; licensing fees
http://www.mp3licensing.com/royalty/index.html
In 2001 Thomson announced the arrival of mp3PRO, the next generation of mp3. mp3PRO offers two key advantages: enhanced sound quality and improved compression. It provides 128kbps performance at a 64kbps encoding rate, thereby bringing genuine CD quality and enabling Internet broadcasters to lower their bandwidth costs.
http://www.mp3licensing.com/mp3/mp3pro.html
conclusion: mp3pro is the official successor to the proprietary mp3 format. the only reason its popularity exploded and why it's considered an "open" format is because some hackers released a free version of the encoder/decoder, and because you can see the standard without paying for it at first. to actually use the standard, you have to pay up.
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re: .aac proprietary standard; licensing fees
MPEG-4 AAC has been specified as the high-quality general audio coder...Apple Computer has incorporated MPEG-4 AAC into QuickTime 6 and iTunes 4, as well as the latest version of its award-winning iPod portable music player...These exciting platforms represent the state of the art in audio coding—and Via Licensing is pleased to offer the MPEG-4 AAC Patent License Agreement.
The MPEG-4 AAC standard incorporates MPEG-2 AAC, forming the basis of the MPEG-4 audio compression technology for data rates above 32 kbps per channel. Additional tools increase the effectiveness of MPEG-2 AAC at lower bit rates, and add scalability or error resilience characteristics. These additional tools extend AAC into its MPEG-4 incarnation (ISO/IEC 14496-3, Subpart 4).
A copy of the MPEG-4 Audio standard can be purchased from the ISO online store (search for "14496-3").
http://www.vialicensing.com/product...c/standard.html
An MPEG-4 AAC patent license is required for manufacturers or developers of complete (or substantially complete) end-user encoder and/or decoder products, or for manufacturers/developers of component encoder and/or decoder products that are provided directly to end-users.
http://www.vialicensing.com/product...html#WhoLicense
Yes. There is an initial fee of $15,000 due upon execution of the license. This is a one-time payment and not an annual fee.
http://www.vialicensing.com/product...#AACUpFrontFees
The AAC Patent License Agreement grants patent rights only. There are no deliverables other than a license to practice the patents of the AAC licensors.
http://www.vialicensing.com/product...Q.html#included
The patents of Fraunhofer related to AAC are licensed by Dolby Laboratories Licensing Corporation, together with the patents of AT&T Corporation, Sony Corporation and Dolby Laboratories Licensing Corporation.
At http://www.dolby.com/trademark/index.html we found:
"For questions concerning Advanced Audio Coding (AAC) licensing, please send email to Advanced Audio Coding Licensing Administration, AACLA@dolby.com".
We believe that some of the patents of Thomson are also used in AAC:
ep0193143b1 (Grouping of values, suppression of signal compression below thresshold)
ep0251028b1 (Masking threshold covering more than one group)
ep0277613b1 (Masking threshold in adjacent groups)
Note: This list is not exhaustive; other patents of Thomson might be used.
http://www.mp3licensing.com/other/index.html
conclusion: aac is not the official successor of the .mp3 format, but rather the successor to mpeg2 aac. it is not an open standard because a company owns all the patents and controls who licenses it--and one must pay to obtain the standards. apple cannot license it because it is not the same company that owns the patents. apple cannot give what it does not own, else it would be hated like sco.
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re: wma proprietary standard; licensing fees
i'm not going to bother with this one. should be obvious.
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re: .ogg open source standard; no licensing fees (as of yet)
If you decide to sell your music in MP3 format, you are responsible for paying Fraunhofer a percentage of each sale because you are using their patents. Vorbis is patent and license-free, so you will never need to pay anyone in order to sell, give away, or stream your own music.
http://www.vorbis.com/faq.psp#artist
Again, there are no licensing fees for any use of the Ogg Vorbis specification. As a commercial developer, you are free to create and sell (or give away) open or closed source implementations of Vorbis encoders, decoders, or other tools. However, if you use our software rather than writing an independent implementation, you must respect the terms of the license. Our libraries are available under our BSD-like license and can be used whole or in part by closed source applications.
http://www.vorbis.com/faq.psp#com
The benefits of a patent-free, license-free format outweigh the concerns of making money directly from the format. The Vorbis format will always be free and in the public domain. Xiph.org is investigating a variety of models for funding development, some of which may include licensing non-free Vorbis-related programs and libraries to commercial projects. Nevertheless, the reference encoder and decoder will always be open source and third parties will always be free to modify or reimplement them.
http://www.vorbis.com/faq.psp#money
conclusion: ogg is an open-source alternative format.
Last edited by Q Cubed on 19-10-2003 at 08:34
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Q Cubed
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t3h y3ll0w p3ril
Apr 1999 time: 23:31
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(sigh) you know what i hate about dialup? it's sloww...
in any case, an open standard, as i'm defining it, is one where you can study the standard and not pay to use it. one where you can develop your own implementations.
a proprietary/non-open format is a format where you must license it to use it in an ecoder or decoder legally. it doesn't matter if you can read about the standard if you can't actually use it. therefore, it's proprietary, and not open.
what makes apple's aac even more proprietary is that they've modified the aac format they use to have drm; so not only does anyone who wants to use their accs format have to license it from them, they also have to obtain the licenses to the basic aac format. therefore, it's not an open standard.
if we went by the definition you seem to be using, in that open standard means anybody can read it, then you cuold consider word .doc open--but they're not. that's why openoffice can't always open up a .doc file flawlessly--they made an implementation of something that can almost decode it, but they don't have the last few bits that microsoft owns and keeps to itself. thus, though anyone can see the encoding of a .doc file, it's still proprietary.
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