[vorbis] Ogg Vorbis v1.1 suggestion

[Ross Levis]

Hi Carsten

I sometimes listen to Virgin Radio using Real Audio at 32kb/s, if my DSL
speed becomes dodgy - http://www.smgradio.com/core/audio/real/live.ram
In my opinion it sounds much better than the vorbis 32kb/s streams they are
doing
http://ogg.smgradio.com/vr32.ogg.m3u

They feel the need to resample the vorbis stream to 22khz, perhaps as this
is the only way to obtain a 32kb/s stream using VBR.

Regards,
Ross Levis
=====================================
StationPlaylist.com
http://www.stationplaylist.com
Low-cost music scheduling, live assist and automation software.
=====================================

----- Original Message ----- 
From: "Carsten Haese" <carsten at xiph.org>
To: <vorbis at xiph.org>
Sent: Thursday, November 27, 2003 8:37 AM
Subject: Re: [vorbis] Ogg Vorbis v1.1 suggestion

<p>> On Tue, 2003-11-25 at 15:36, Carsten Haese wrote:
> > On the few files that I have in .wav here, I get quite respectable
> > results with oggenc --advanced-encode-option lowpass_frequency=12
> > --resample 32000 -b 40 -M 32. I have no idea how this stacks up against
> > Real Audio since I don't have that available. Of course, the CPU hit is
> > still there.
>
> I'm starting to reply to myself, so I guess this'll be the last I have
> to say about this topic. :)
>
> I have downloaded Helix Producer Basic because I was curious how Real
> Audio and Vorbis compare at 32kbps. (Actually, all my test clips in
> Vorbis came in a bit under 30kbps). In comparing the two, it basically
> comes down to which one you hate less. Real is muffled and warbly,
> Vorbis is bright and tinny. I prefer tinny over warbly, but the choice
> is kind of like deciding if you prefer being kicked in the groin or
> being kicked in the face.
>
> So, in summary, quality-wise I think Vorbis is already on par with Real,
> and it can only get better with Vorbis 1.1. Speed-wise, Real wins hands
> down by an overwhelming margin, and I don't know if Monty's plans
> include any possibilities for speed-up. Considering that current VBR at
> -q -1 is a bit over twice as slow as Real's 32kbps mode, I find it
> unlikely that Vorbis 1.1 will beat Real's speed. However, since
> processor power is steadily getting cheaper, I'm willing to believe that
> many people would trade speed for quality.
>
> -Carsten

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