[vorbis] Best way to convert a whole mp3 collection??

John Morton jwm at plain.co.nz
Sun Sep 2 21:25:32 PDT 2001

On Monday 03 September 2001 15:33, you wrote:
>  Hey guys.. ive been following the vorbis project for a year or more now...
>  its nice to see its come so far with rc2.
>  anyway....
>  i wanna convert my whole mp3 collection (~20 gigs, of mp3s ranging from
>  96kbps to 256kbps) to ogg.
>  I want to make sure that i dont LOSE any quality from the high bitrate
>  tracks,
>  but i dont want to waste space on lowbitrate tracks, by encoding them too
>  high.
>  PLUS id like to somehow automate this whole job, because i dont feel like
>  doing it by hand.
>  can someone give me some guidelines,  as to what bitrate in mp3 is
>  equivalent in sound quality to a bitrate in ogg?

(Everyone on the list has heard this a dozen times before but...) Don't 
transcode from mp3 to ogg. Transcoding sucks in general, and between formats 
it almost ensures that you'll get audible artifacts. I think some of the 
tuning effort on RC2 might be working on minimising this, but I'm not sure. 

Which leaves reencoding from CD. If you don't have much in the way of 
metadata saved, then any old rip-and-encode software that looks up freedb 
will do. 

I don't believe there is any software (yet) that will rip cds, figure out 
what mp3s it's replacing and transcribe the metadata in them to vorbis 
comments. It's a good idea, though :-)


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