[vorbis-dev] high frequencies response

[Tor-Einar Jarnbjo]

Torsdag, 10 oktober 2002, skrev du:

>Anyways, this all is not the point. You are _free_ to do your own 
Vorbis
>implementation. You are _not free_ to implement MP3, for example,
>because you *will* infringe patents. And, what do you expect from Xiph?
>I don't think their priorities are unreasonably set. Everything takes
>time; this includes documenting something that has been in developement
>for about 10 years.

The fact that I don't have to pay any licencing fees or tolls to 
swim across the Atlantic doesn't make it more feasible. And: The 
patents relevant to MP3 are probably only valid in the USA, and I 
could have chosen the easy way and use any of the several available 
MP3 libraries instead of at least trying to use (and support) the 
effort Xiph has placed into Vorbis.

The problem is, that I cannot use libvorbis for a project I am working 
on, and I made the mistake to invest quite a lot of time on developing 
a new Vorbis decoder before I realized that it is not possible to 
get it to a production quality level. I did indeed expect from Xiph 
to take care about the correctnes of the specification when they 
are distributing one. I did also expect that there are reference 
files available to test new decoder implementations. There are not,
and the available encoders don't make use of all parts of the specification,
making self-generated vorbis files not very suitable for tests.

Tor

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