[Icecast] Re: [Vorbis] AACplus
geoff at hitsandpieces.net
Sun Mar 6 02:22:47 PST 2005
>> I'm seeing more and more streaming stations using AACplus, with many
>> listeners being amazed at the sound quality. Most say that a 48kb/s sounds
>> better than a 128kb/s MP3,
> That's claiming a bit much. Even against the original Blade this
> would require not paying much attention. What's true is that the
> artifacts sound very different, so if you're listening for mp3-like
> high-end problems, you probably won't hear them.
You have to admit though that even Vorbis -q -1 in Vorbis 1.1 and aoTuV B3
does sound pretty impressive at circa 48kbps.
>> which would put Ogg Vorbis at around 96kb/s IMO.
> Not really. 64kbps Ogg is still a little better than the 48kbps
> AAC+SBR we're talking about.
I've not heard any of the AAC codecs, mainly due to the difficulties in
playing them under lInux, but q -0 Vorbis compares very well (IMHO) to
128kbps MP3. Certainly q 1 does, and that's still only circa 80kbps.
> That's not to say the low bitrate AAC+SBR isn't very good; as a new
> codec, it's quite an improvement to classic AAC at low bitrates. But
> many of the press-release claims are (understandibly) pushing the
> envelope of what is really believable.
I'll never forget what you wrote on the "Dare to Compare" Ogg Vorbis page.
You were so convinced, simply by the hype, that WMA 8 was so good at low
rates. That was until you heard it. This sounds like good advice to me -
people should listen for themselves.
> Also, it's absolutely true that at the lowest bitrates (32/48kbps)
> AAC+SBR currently has a decent edge over Vorbis low bitrate. Everyone
> is still moving forward and the lead changes back and forth. The low
> bitrate race is pretty much down to new AAC and Ogg these days. At
> low bitrate, AAC is ahead, at mid-bitrate Vorbis is still leading.
Have you had a chance to try out aoTuv B3 yet? As far as I can remember,
aoTuV's quality -2 sounds like quality -1 in Vorbis 1.0, but at
considerably lower bitrates.
More information about the Vorbis