[vorbis] Vorbis native Ripper-decoder-encoder
greg at linuxpower.cx
Fri Aug 3 11:29:49 PDT 2001
On Fri, Aug 03, 2001 at 08:11:44PM +0200, Hongli Lai wrote:
> YOU have something that enables you to hear difference between Ogg Vorbis
> and MP3.
> But I and many others don't. So if it's their choise to convert MP3 to Ogg
> Vorbis, then why not let them do it?
> Those who don't want to don't have to. Then everybody will be happy.
First off, perceptually codecs almost always perform better on higher
quality sound equipment then lower quality equipment, as the good stuff
tends to break the codecs assumptions.
Secondly, People CAN easily transcode today. Decode. Encode. I just argue
that Xiph should have no involvement in supporting a tool that encourages
people who do not understand the implications of transcoding to do it
without thinking. People still have their ability to choose.
Thirdly, While you may not hear a degradation, I still contest that there
is no advantage for the user to do this even when you ignore the loss of
quality. Furthermore, if these people distribute the results, then there
will be no assurance that the OGG you are downloading is actually a good
encoding, lowering the average quality of OGGs for everyone.
At the 1.0release you can download a 128kbit ogg and be reasonably sure that
they won't be any annoying artifacts. You can download a 160kbit/sec and
have confidence that the compression will be mostly transparent.
With mp3, there shouldn't ever be noticeable artifacts at 160. But because of
people using garbage encoders, you can download 192kbit mp3s and still get
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