Hello,
I don't know if any, and if, how much JS (something like the choice
between MS or S) can be tweaked.
Take this for example:
http://r3mix.50g.com/velvet.zip (1900kB)
I was doing testing for Qdesign, and this was the conclusion:
> 1) FHG hq 192S : terrible, high squeeks in R channel
> 2) Lame 192 JS : terrible, sounds like someone is shaking such a wooden
> instrument filled with sand. less annoying than 1.
> 3) QD mp2 fast : terrible, where did the frog come from ??
> 4) QD mp3 HQ : total mutilation, yeah! spacey effects, this is the worst around.
> I think would sound like this when a robot has sex.
> 5) QD mp2 HQ : low pounding distortion, L channel in start
> 6) QD mp3 fast : L channel is lost: sounds like there is an extra
> instrument introduced. Or maybe it has been through a WMA filter
> or so. complete hollow sound.
> 7) xing S hfreq: starting to sound like the original. however
> constant noise, and I get a sea-sick sensation. hurts my head to
> listen.
> 8) xing S 16khz cutoff: give me a $2 pair of computer speakers and I
> cannot distinguish this one from the original.
> 9) mystery signal: ok, besides those 2 thumps around 5.5-6 seconds on
> normal stereo
> 10) Lame 192S : this sounds ok. probably not perfect, but my head
> hurts from that xing sample. I can enjoy this one.
So it's a hard to encode piece.
* "LAME -ms -b192 -h" sounds ok
* "LAME -mj -b192 -h" sounds certainly NOT ok
wouldn't this be a nice clip to tweak the JS a great length? If lame
would manage to get all that noise out of the R channel in JS, by
making better decisions when to go to and from MS it would be a leap
forward.
This also offers the VBR (old/new) a big potential gain in quality
imho. (Since audio glitches I encountered in vbr-new, ns-psytune and
others, are mostly JS related.)
btw: the piece is extremely hard to encode. It wouldn't be abnormal
to have almost only S frames in JS mode I think.(?)
I hope someone picks up on this :)
thanks for listening
[sorry for the re-send, but after 2.5 hours the original post still
isn't on the list, so I assume it got lost somewhere...]
--
Best regards,
Roel mailto:[EMAIL PROTECTED]
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