Audio Banter - View Single Post - DBT in audio

**ScottW** · January 25th 06, 06:35 PM posted to uk.rec.audio,rec.audio.opinion

wrote:
ScottW wrote:
wrote in message
oups.com...

Krueger, you will not succeed in sidetracking your lack of evidence
that your test is worth a penny for showing differences between audio
components by:
1) hoping that I'll begin to exchange with you niceties about "paranoid
hysteria". It does sound sort of desperate, almost paranoid, almost
hysterical doesn't it.?
2) flying off at a tangent into gossip about. "perceptual coding
techniques" such as AAC and MP3". I don't care and I don't want to know
abt. these or the craters on Jupiter. This is about audio components.
*You* can have MP3. You deserve each other.
3) emitting a lovely scientific assertion: "This is obvious". As
obvious as the flatness of the earth?
I suggest you ponder what a real researcher Sean Olive said to your
clown-prince last November:
" I rarely ask listeners the question "Is A different than B"?" In
most cases, the differences between the loudspeakers
under test are
measurable (both objective and subjective)and therefore
the more interesting
question for me is "Which speaker do they prefer, by how
much, and why?" "
And he did not use ABXing in his loudspeaker comparison test.

He said why Ludovic. Whether they sound different or not was not in
question. So the obvious next question which he had moved on to...was
preference. Which one sounded better and why?

This has no bearing on the validity of ABX to determine if things sound
different.
The illogic of your argument is too obvious and makes your credibility
suspect.

ScottW

Hi Scott W. RAO's own logician. Long time no see but I knew you'd be
lurking in the undergrowth waiting to pounce at my "suspect
credibility"
Sean Olive called his paper: "Differences in *performance* and
*preference* of trained versus untrained listeners in loudspeaker
tests: a case study" (JAES,vol. 51,#9, 2003)
In the preamble he says::" Significant differences in performance,
expressed in terms of magnitude of the loudspeaker F statistic F1, wre
found among different categories of listeners.....
*Performance* differences aside loudspeaker loudspeaker *preferences*
were generally consistent across all categories of listeners..."
On pages 818,.819 you'll find graphs showing differences in performance
ranging up to 27 times better between different groups. On page 814 a
graph showing very slight differences in preference (I like, I don't
like) between the same groups.
Have you found your way to the San Diego Public Library yet? Next time
before rushing gleefully into print you' might read your source. You
won't make me look for the paper, then type and type and above all
you'll not show yourself once again for what you a a nuisance,
yapping at people's heels a miniature Scott terrier whose sole input
into the discussion is clumsy showing off perennially missing the
target.
Ludovic Mirabel

Nothing in your follow-up post contradicts anything I said. Do you
simply like to type or what?

ScottW