OGG and Losslessness (Re: MP3 to OGG converter? (Was: Re: Xmms and RH8))

[Derek Neighbors]

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While I agree with your assessment, I think the statement "both formats
are lossy" is incorrect.  OggVorbis supports lossless compression. (or
at least that is my understanding as of v1.0)

>From the documentation:
http://www.xiph.org/ogg/vorbis/doc/stereo.html

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Lossless Stereo
Using polar mapping and/or channel interleaving, it's possible to couple
Vorbis channels losslessly, that is, construct a stereo coupling
encoding that both saves space but also decodes bit-identically to dual
stereo. OggEnc 1.0 and later uses this mode in all high-bitrate
encoding.

Overall, this stereo mode is overkill; however, it offers a safe
alternative to users concerned about the slightest possible degradation
to the stereo image or archival quality audio.
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On Thu, 2002-10-17 at 10:50, David Mandala wrote:
> Since both formats are lossy you would not want to go from mp3 to ogg.
> You would want ot start with the original CD's and recompress them into
> ogg format. Going from mp3 to ogg will sound really bad.
>=20
> Cheers,
>=20
> Davidm
>=20
> On Thu, 2002-10-17 at 10:17, Alan Dayley wrote:
> > At 09:35 AM 10/17/02 -0700, you wrote:
> > >-<clip>-
> > >The right answer is not 'download the xmms-mpg123' rpm.  The right
> > >answer is use .ogg format instead.  Demand it from those whom you trad=
e
> > >music with.  So that mp3 will go away. ;)
> > >
> > >I say this because there may come a day in which you wont be able to
> > >freely download xmms-mpg123 either.  It is better to free your self fr=
om
> > >the mp3 patent now, instead of when its too late. ;)
> > >
> > >--
> > >Derek Neighbors
> >=20
> > Good point.  Follow-up question then is: Is there a utility for easily=20
> > converting MP3 to OGG?  Something script-able would be great.  Point it=
 at=20
> > a directory and say convert.
> >=20
> > Alan
> >=20
> >=20
> > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
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> > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us
> > To subscribe, unsubscribe, or to change  you mail settings:
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> --=20
> David IS Mandala
> gpg fingerprint 8932 E7EF CCF5 1B8C 1B5C  A92E C678 795E 45B2 D952
> Phoenix, AZ (480) 460-7546 HP, (602) 321-8277 CP
> http://www.them.com/~davidm/
>=20
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--=20
Derek Neighbors
GNU Enterprise
http://www.gnuenterprise.org
derek@gnue.org

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