[vorbis] MP3 to OGG conversion

Alan MacDonald newslists at warpzillion.com
Tue Jun 25 16:41:01 PDT 2002



> -----Original Message-----
> From: owner-vorbis at xiph.org [mailto:owner-vorbis at xiph.org]On Behalf Of
> Brendan Ragan
> Sent: Tuesday, June 25, 2002 7:29 PM
> Here's a question. (and someone may hit me with a cluebat as i really
> don't have *any* idea how Vorbis compares to Mp3 on a low level)
> Someone was recently commenting that bitrate peeling would require
> some sort of re-quantizing. Is it possible to convert information
> designed for mp3's filterbank to that of ogg's? or are the formats way
> too fundamentally different?

<p>I think I was the one talking about that.  Actually, I believe the peeling
doesn't require re-quantizing, that was just an idea I had.  But, back to
your question, every stage of the MP3 encoding process differs from vorbis.
Same theories, but data wise, different.  There may be some things to
exploit to make the conversion smarter, but probably not worth it.

<p>Later,
Alan

<p>--- >8 ----
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