maxrob200;372865 Wrote:
Now to see if some company comes out with an audiophile grade switch
that sells for a zillion dollars and delivers heavenly sound because of
the unobtanium used in it.
On a more serious note, it is perhaps worthwhile to take a closer look
at different types and
ar-t;372636 Wrote:
Well, I read 'em both. Yeah, not much mention of that, but I can
conclude (with a high degree of certainty) that both refer to *word
clock*. IOW, 44.1 kHz. If you look closely at the first paper, they
point out that everyone could hear 2 uSec of jitter. You simply can not
ar-t;372883 Wrote:
This was not directed at anyone on this forum, or anyone specifically. I
talk to a number of industry folk on a daily basis, and
well...we all were about as frustrated the same amount about
this subject. You would be surprised how often we hear this lodged
against
Patrick Dixon;372472 Wrote:
The problem I have with DBT in audio, is not that it's DB at all - it's
that the tests are normally conducted using repeated short music clips.
They're usually done that way for two reasons:
1) Some research has shown that subtle differences are much -easier- to
Going full blast into an amop without any form of vol contol is a bad
option , set your internal jumpers so that 100% vol sounds as loud as
you want with minimal distortion and then use the transporters digital
vol control to tweak
--
Rodney_Gold
Sb3/Z-sys RDP1/meridian DSP5500's
TP/X-cans
In my day job I build mathematical models (well someone has too!)
Recently I've been knee deep in NMR (Nuclear Magnetic Resonance)
spectra of polymers. The gist is this : we take a spectra of the
polymer process via the NMR every 15 minutes. Each spectra contains
2,000 points. If I print out
BigTony;373064 Wrote:
My philosopy: Minimise the variation that we can (better cables, stable
power supply, low jitter, low noise etc) and then whats left we can
modify with a glass or two of whiskey.
Same philosophy here. :)
--
Themis
SB3 - North Star dac 192 - Denon 3808 - Sonus Faber
opaqueice;373029 Wrote:
They're usually done that way for two reasons:
1) Some research has shown that subtle differences are much -easier- to
hear when the clips are short, and
2) It takes less time that way.
There is no reason in the world why it can't be done with longer clips
-
This is how I feel about ABX tests and their methodology:
Let's take two different drawings (you know, the old 10 differences
quizz^^). Lets say now they have 100 small differences. It's the find
the 100 differences game.
Then, we take several people, and we let them observe the two pictures
(A
vrobin;369707 Wrote:
sold the same price as the CD release... there is still room for
progress!!
They could at least knock off the cost of making the physical CD; about
$0.25 I reckon.
--
Mick Seymour
Mick Seymour's
richardl10;372969 Wrote:
I'm hoping to get the player sounding better and it's not the new
speakers that aren't upto the job.
uh..how do you know? Most in-walls I've heard are good only for
background music.
--
ghostrider
Hi OP here again,
I had said that I thought - after reinstalling, cleaning out registry
etc etc - that 7.3 sounded AT LEAST as good as 7.2.1., possibly even
better?
I had put that one down to the placebo effectbut to my ears it DID
sound tighter...with better soundstaging.
Been running it
Patrick Dixon;373071 Wrote:
Why is it that you always stoop to personal abuse?
Are you not an audio manufacturer/modder hawking your wares (on another
manufacturer's forum, of all places)? Not that I actually even said you
were...
Do you not have an agenda and a profit motive for people to
I ran the DTS test today all OK here.
I did it when i first got my SB to ensure myself on that i can have bit
perfect transport in MY setup.
well I did it again afaik SC7.3.1 does not manipulate any bit's.
Unless you tell it to via RG or transcoding or volume control.
SPDIF data arrives at my
Themis;373072 Wrote:
Then, we take several people, and two different pictures (A and B)
along with a third one (X) which is a copy of one of them.
Then, we cut a small piece of each picture (say 1 billionth of it) and
we ask each time to try to determine whether the piece of the X picture
What are the in-walls? No offense, but i too have never heard an in-wall
in the league of the TP.
--
Shredder
Shredder's Profile: http://forums.slimdevices.com/member.php?userid=11380
View this thread:
opaqueice;373150 Wrote:
In the best ABX methodologies, listeners can -choose- which sections to
listen to (zoom in on that small piece, in your analogy). Or failing
that, the passages that exhibit the greatest differences are selected
by the test administrator. In your analogy, it's clear
Shredder;373162 Wrote:
What are the in-walls? No offense, but i too have never heard an in-wall
in the league of the TP.
Polk RTS series, supposed to be pretty good, that's the problem with
in-walls...you can't really audition them and trust M+K to go bust
when I'm looking for a set of
I thought I'd leave them running while I was out today and I think the
speakers seem to have run-in a bitbut it could be me just me
trying to convince myself.
The speakers haven't really had much running in time.
--
richardl10
opaqueice;373147 Wrote:
Are you not an audio manufacturer/modder hawking your wares (on another
manufacturer's forum, of all places)? Not that I actually even said
you were...No.
opaqueice;373147 Wrote:
Do you not have an agenda and a profit motive for people to believe
these things? On
ar-t;372401 Wrote:
Rather than tell me I am wrong and/or nuts. Chalk one up for the Lone
Prophet.
Nah. You're nuts. ;-)
--
lanierb
lanierb's Profile: http://forums.slimdevices.com/member.php?userid=5566
View this
Themis;373169 Wrote:
Choosing has nothing to do. We are actually measuring the probability
that someone can accidentally find the difference.
Sorry, I don't follow you.
But, this is NOT what the methodology is used to measure. It pretends
to measure something else : the perceived
Labarum;369312 Wrote:
He has more business than he can handle at the moment.
...or getting too many back?
--
gw43
gw43's Profile: http://forums.slimdevices.com/member.php?userid=11327
View this thread:
opaqueice wrote:
ABX measures whether a difference is audible, or not.
Technically, ABX gathers data points on whether the humans think they
detect an audible difference. You then apply statistics to compare the
results against random values. So you can say we found X percent of the
humans
opaqueice;373022 Wrote:
When someone says they can hear the difference between (say) cables,
there are basically two possibilities:
1) Swapping the cables altered the sound waves emanating from the
speakers in a way significant enough to be perceptible to the pair of
ears listening to
opaqueice;373199 Wrote:
Huh? You're not seriously claiming that because we can measure a
difference in (say) THD, that means there's an audible difference?
That would be patently absurd (ever heard of perceptual thresholds?
taken a hearing test?), so I can't imagine that's what you're
Themis;373210 Wrote:
I say that there ARE differences. When two amplifiers have a 0,01%
diffrence of THD, it means that the sound is not the same. It's as
simple as that.
I don't pretend that you, me or anybody else can actually find this
difference, or even hear it. But there IS one :
ar-t;373205 Wrote:
So, yes, I realise that just because someone says that they hear a
difference does not really mean that they do.
Good anecdote - and FYI that experiment has been done many times,
always with that same result (and not just in audio; that kind of thing
is the
wireless200;372905 Wrote:
It funny I ran across this thread today. I just upgraded to 7.3 last
night and I thought my Tranporter sounded *better* than before. I have
it for a while over several SC upgrades and never had that thought
before. I briefly thought about starting a thread asking
You may see the water in the desert, but you're still going to die of
thirst.
Darren
--
darrenyeats
SB3 / Inguz - Krell KAV-300i (pre bypass) - PMC AB-1
Dell laptop - JVC UX-C30 mini system
darrenyeats's Profile:
The other half of that story..and I can not name names, but..
We were supposed to be coming up with a better power supply for some
company's product. I had doubts that we could, because the product
itself was flawed, and it to be backwards compatible. IOW, make a
better outboard POC
Themis;373210 Wrote:
...
So, what I say, is that when we do an ABX test, we actually measure the
probability that some (any) auditors can find this difference. If they
don't find any, the test means nothing.
I like this sentence as I think it summarises most of what has been
presented in
Ok, back to your premise about cognitive psychology.
When I did the fake preamp test, and they gave me that
deer-in-the-headlight lookI can't hear any
difference...was I supposed to..did I screw up...?, I then
moved on the next aspect of sorting out the keen listeners.
Pat:
Out of curiosity, what was your company called at that time. It all
sounds very familiar. I have only been to a couple of big shows - one
CES/High End about 10 years ago and the Stereophile show when it came to
Los Angeles.
I went to the LA show with a friend of mine and we quietly sat
I got quite worried when I saw this thread; I then realised that I had
noticed that the previous track didn't sound great, and the current
one, a Beethoven concerto, also was a bit rough. Panic!!!
So I checked the SC version - 7.2.1. I haven't bothered to upgrade
yet.
Then I engaged brain,
Yeah your right, you really need to listen to the same track/ set of
songs both as background music (when the brain aint really looking for
differences and actually comparing like for like).
I think a few days/weeks whatever in needed to be really sure.
Be interesting to see what you think of
This forum never fails to put a smile on my face.
--
andynormancx
Yes, it will. Yes, all of them. Yes, SoftSqueeze as well. What ?
I SAID ALL OF THEM !
andynormancx's Profile:
Did I make a funny?
:-)
Its not just me you know.
I trust my ears above forum opinion, much like yourself I suspect?
Technically I cant explain it. Go figure huh?
--
Gazjam
Gazjam's Profile:
I trust my ears fine. Unfortunately my ears are connected to my brain
and it has been shown time and time again that you just can't trust the
human brain to not lie to you in the most inconvenient and convincing
way.
--
andynormancx
Yes, it will. Yes, all of them. Yes, SoftSqueeze as well.
Ok,
thanks for that.
--
Gazjam
Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=56591
You just guessing there gw43, or do you know something others dont?
To be fair it doesn't look like it.
http://feedback.ebay.co.uk/ws/eBayISAPI.dll?ViewFeedback2userid=home_hififtab=FeedbackAsSelleriid=320326474281sspagename=VIP:feedback:2:uk
--
Gazjam
Gazjam;373317 Wrote:
Did I make a funny?
:-)
Its not just me you know.
I trust my ears above forum opinion, much like yourself I suspect?
Technically I cant explain it. Go figure huh?
Was this a black swan?
--
gbruzzo
http://www.last.fm/user/JackieBr/
Black swan?
As in the old metaphor for something that cant exist?
I dunno mate, maybe its my brain being disconnected from my ears!
Me, and the other guys that have heard what I've heard.
Mass histeria? :-)
Thinking about it for a second, there has been a change of server
software AND a change
observing white swans for a lifetime does not allow us to imply that no
black swan exists - you may indeed be right.
--
gbruzzo
http://www.last.fm/user/JackieBr/
gbruzzo's Profile:
As in
having observed only white swans during a lifetime does not exclude the
possibility that there actually is a black one...
--
gbruzzo
http://www.last.fm/user/JackieBr/
gbruzzo's Profile:
Themis;373210 Wrote:
I say that there ARE differences. When two amplifiers have a 0,01%
diffrence of THD, it means that the sound is not the same. It's as
simple as that.
I don't pretend that you, me or anybody else can actually find this
difference, or even hear it. But there IS one :
Themis wrote:
I say that there ARE differences. When two amplifiers have a 0,01%
diffrence of THD, it means that the sound is not the same.
No, it most clearly does not mean that. It means that the measured THD
is different. Whether THD differences of 0.01% is audible is a
completely separate
I took today off from work. I had not spend a long day in front of the
main audio system enjoying music. I spent 5 hours listening to my
favourite music for music worshipping ritual, and playing percussion
and flute with it. I contend I would have heard if anything was off
with 7.3. I enjoyed the
Gazjam;373338 Wrote:
You just guessing there gw43, or do you know something others dont?
To be fair it doesn't look like it.
http://feedback.ebay.co.uk/ws/eBayISAPI.dll?ViewFeedback2userid=home_hififtab=FeedbackAsSelleriid=320326474281sspagename=VIP:feedback:2:uk
I sent mine back as I
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