So it looks like the Frauenhoffer boys are issuing an updated format --
MP3pro. They claim that it will give 128kbps/MP3 quality in 64kbps.
I'm interested to see what others think of this.
I'm also curious: I've seen others on the list say that Ogg/Vorbis'
sound
quality is "better" than MP3. Can this be quantified (or is this
already
on a web page somewhere)? I kinda guess that "128kbps/MP3 quality in
64kbps" is marketing drivel, but such comparisons would be helpful for
those of us who don't understand acoustics, etc. :-)
{+} Jeff Squyres
{+} squyres@cse.nd.edu
{+} Perpetual Obsessive Notre Dame Student Craving Utter Madness
{+} "I came to ND for 4 years and ended up staying for a decade"
--- >8 ----
List archives: http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to
'vorbis-dev-request@xiph.org'
containing only the word 'unsubscribe' in the body. No subject is
needed.
Unsubscribe messages sent to the list will be ignored/filtered.
"Jeff Squyres" <jsquyres@lsc.nd.edu> wrote:> I'm also curious: I've seen others on the list say that Ogg/Vorbis' sound > quality is "better" than MP3. Can this be quantified (or is this already > on a web page somewhere)? I kinda guess that "128kbps/MP3 quality in > 64kbps" is marketing drivel, but such comparisons would be helpful for > those of us who don't understand acoustics, etc. :-)Well I can't give you a in-depth technical answer why Vorbis is better then MP3 (except for the obvious advantages over MP3 format, mostly covered by FAQ at vorbis.com), but currently with beta3 Vorbis is better then MP3 at -b192 and -b256 modes - I have mostly tested these modes because I'm very interested in quality - just listen to fatboy.wav or castanets.wav. Modes -b128 and -b160 are pretty good too, but when joint-stereo comes they will show their full strength (so when you are comparing Vorbis with MP3 (LAME), be sure to turn off joint-stereo in LAME with -ms). -b128 and -b160 modes will mostly sound much like MP3 at these bitrates (VBR or CBR) but Vorbis encodes more high frequencies >16kHz (so does MP3 but it doesn't do it properly and you can easily hear artifacts). Of course, there are still some bugs in Vorbis encoder but I think that they are now fixed in CVS so beta4 should clearly be better quality then MP3 (both Fraunhofer and LAME) at 128-256+ kbps. As for lower bitrates (mostly used for streaming), I don't know if they are slated for beta4, but I have no doubt that when wavelets step in, Vorbis will kick MP3 & WMA's ass in streaming quality. :-) Probably even without wavelets. :-) Greetings, Aleksandar --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On Thu, Jan 11, 2001 at 10:05:17AM -0500, Jeff Squyres wrote:> I'm also curious: I've seen others on the list say that Ogg/Vorbis' sound > quality is "better" than MP3. Can this be quantified (or is this already > on a web page somewhere)?A Russian guy has done some interesting quality tests with MPEG-1 Layer III, WMA and Ogg Vorbis codec implementations: http://websound.ru/docs/review/expres_e.htm> I kinda guess that "128kbps/MP3 quality in > 64kbps" is marketing drivel, but such comparisons would be helpful for > those of us who don't understand acoustics, etc. :-)Not that I understand acoustics all that well, but maybe you're also interested in some sound theory links: http://www.helsinki.fi/~ssyreeni/dsound/dsound http://www.arts.uci.edu/dobrian/digitalaudio.htm http://www.gprep.org/~music/musikbok/chap5.html http://www.anu.edu.au/ITA/ACAT/drw/PPofM/INDEX.html -- . Jama@debianlinux.net . . www.debianlinux.net . . --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.