I am definitely interested in bitrates higher than 128. In my personal
opinion, 128 is not good enough. In CBR I would have to encode at 192 to be
happy. I was under the impression that if I use VBR mode with 128 as the
bottom...that I would get an average about about 185 or so (which is what I
have been getting), but the advantage is that in certain sections where it
needs to, it uses higher bitrates...and in sections where it does not need
to, it would use lower bitrates. Hypotheticall, this would mean overall
better sounding music...or more efficient use of bitrates to acheive the
best sounding playback. Hypothetically that is..
This is the lame command line I have been using (3.83):
lame -V1 -mj -h -p -F -S -b 128
With that, I've been getting average bit rate of around 185. Filesize is
about the same as if I had just done 192 CBR, which is satisfactory for me.
Question is, is this VBR encoding superior to CBR 192 or not in terms of
sound quality? If not, then why bother? I might as well just use 192 CBR
and potentially less wierd implications and greater compatability with MP3
players. Secondly, am I using the best command line for what I want out of
VBR mode?
As you pointed out, its very difficult to tell whether CBR 192 or VBR mode
is better in terms of sound quality. What about encoding time?
-steve
> -----Original Message-----
> From: Mark Taylor [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, July 09, 2000 12:24 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [MP3 ENCODER] new VBR code
>
> I do all my testing at 128kbs and lower, and I still
> feel that 128kbs CBR is on average better than VBR (128kbs average)
>
> At higher bitrates, (see r3mix.net for example), there is
> some evidence that VBR outperforms CBR. But this is mostly
> based on signal processing tests - not hearing tests. hearing
> tests are hard to perform at such high bitrates because
> everything sounds pretty good, and I think the evidence
> is not conclusive either way.
>
> Mark
>
>
>
>
>
>
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