floor is constant, reducing the signal will reduce the signal to
noise ratio.
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Phil,
Many thanks for conducting these experiments. I find this to be a
fascinating topic. Reason is highly underrated, lol.
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, and you will be using the Sony's DAC.
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badbob;385408 Wrote:
What about if using digital outs? Both of my SB'3 are fed to external
DAC's (stereo and multi channel processor)
Replaygain will work fine, using the 24-bit volume adjustment,
regardless of whether one uses the analog or digital outputs.
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correctly identified the coffeemaker 200 times
out of 400. Had you guessed without even tasting the coffee,
probability dictates that you would likely have been correct 1/2 of the
time.
Student: Then I suppose that I really cannot tell the difference.
Master: Exactly.
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pfarrell;373730 Wrote:
jeffmeh wrote:
Student: Then I suppose that I really cannot tell the difference.
Master: Exactly.
Which does not prove that no grasshopper can tell the difference, just
this one. If you used 400 Kung Fu students, instead of one, you would
conclude
.
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. But if you prefer to transcode to WAV, good for you. No
worries.
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Thanks Dave and Clive. Buffer to boost, attenuator to attenuate I
missed the obvious notion that the impedance mismatch is not always a
case of a source with output that is too hot for the target input.
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Thanks all for the great explanations. Can anyone point to a good
layman's definition of impedance? I am math-oriented, but I am not an
electrical engineer, and the definitions I can find on the web seem to
assume much pre-existing electrical engineering knowledge. Many
thanks.
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In the case of an impedance mismatch, what are the comparative
advantages of a buffer over a passive attenuator? I assume that the
buffer will be much more expensive.
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are getting there in time to keep the SB3's buffer from
emptying, it is EXACTLY the same as direct-connect, and the timing does
not matter.
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.
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implementation of digital volume
control in the 24-bit domain is a very good implementation indeed.
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Themis;357776 Wrote:
Audiophiles don't hear : they just imagine things, based on the air
displacement coming out of their speakers... ;)
So THAT is where all the air is coming from :)
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individuals, and
4) Countless studies across disciplines have demonstrated that the
placebo effect is real
Then why is it reasonable to conclude that there is something wrong
with the tests, rather than that none of these individuals can really
hear the difference?
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hearing is lossy. Just
ask my dog.
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, dynamic-range preserving CD
on source A, with a loudness-wars induced, poor mastering of the same
material on source B.
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to spend my
money. :)
If it is a CD player, and has to read the physical disc every time,
there is always a potential for read errors and data
interpolation/extrapolation, which does constitute data loss. In this
respect, an accurate rip stored in a lossless format is a better read.
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is not something one can rule out because of perceived major
differences. Additionally, perception is not fact.
You heard a difference, and that difference may have truly existed, but
it has nothing to do with different sound quality based upon different
computers running SC.
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ears in this system.
Given that there were two amps (one in the subwoofer), I suppose it is
bi-amping of a sort. :-p
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If you try the SB analog outs, be sure to set your receiver into
Direct mode, or whatever is required to get it to bypass any digital
processing. If you do not, the receiver is going to end up converting
the analog to digital and using its DAC anyway.
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with the quality of the music.
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x 1 hr/60 min
x 1 day/24 hr =~ 60 days.
Some of the services also limit your download bandwidth, so check that
out also. But if you achieved 8Mb/sec, it would still take about 6 days
to get your data back.
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the test.
I still do not see this as practical, particularly if anything goes
wrong and it cannot run in unattended mode. However, if you try it I
will be very interested to hear how it goes.
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as what you get with SqueezeCenter. Perhaps that will
change with the controller, but I have yet to use one so I am not
qualified to say.
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reason I post in
threads like this is because I don't want my customers to be misled.
But after a certain point, if someone insists on believing despite all
evidence to the contrary, I give up!
What if the 3 string was moving at the speed of light? :-P
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interface cables).
Good luck.
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$5/month
after an outlay of $800, it would take 800/5 months to recoup the
initial investment, i.e. 13 years 4 months.
Yours pedantically,
R.
What's the discount rate? :)
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their attention elsewhere, the miracles will
happen.
How much did this lesson cost you?
TD
B-I-N-G-O..
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to describe the
other's domain leads one to believe that there is more there to
discover.
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lies the quest for the theory of everything.
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. If they cannot, fine, but they still
may be limited in detecting factors that are not audible.
Finally, I am very skeptical regarding mega-expensive cables, and I can
think of virtually no circumstance under which I would value them given
their cost.
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that it is indeed
different from moving a data file across a network.
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be factors that we cannot yet
measure, and that these factors may turn out to have audible
consequences. Reductio ad absurdum: If the only measurement we had
available were length, the measurement could not distinguish between
two 90cm cables, even if one were severed.
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) negatively.
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some type of coupling. I had an
electrician install a bridge across the phases of the panel. You can
also buy a coupler that you plug into a wall socket. Some of these
devices are passive, while others offer amplification.
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is your CD player vs. FLAC on the
SB3 with no replaygain or DSP.
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to be
inaccurate?
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tyler_durden;229468 Wrote:
The human mind is simply astounding!
TD
I am not quite sure how to interpret this remark.
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Phil Leigh;229795 Wrote:
Sounds like your replacement supply developed a fault to me.
Indeed, that may be the case. However, since I spent all of $25 on the
linear supply, and I am satisfied with the stock switching supply, I
guess that I will just stick with the stock one.
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the linear PSU and the noise disappeared, as did the TV
ghost line. I am back to the SB3 stock PSU. Apparently, in my system,
with this linear PSU I get more noise than with the stock switcher. Go
figure.
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jeffmeh's
physical properties (e.g., differences in radio
frequency emissions), which then results in audible differences.
FWIW, I am extremely skeptical. However, there is nothing wrong with
the logic of the argument.
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, regulated PSU and could not hear any
difference. YMMV.
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michel;224145 Wrote:
I just don't get what difference in sound pre-gaps and offset could
make! :-)
I believe Robin was responding to the suggestion that the burned CD
would be a bit perfect copy of the original.
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myself short of volume on some tracks.
This is not really a problem now as I'm using Slimserver 7 and have not
power cycled since installing it!
Think I might try some sort of attenuattion anyway, see how i get
on.
Thanks everyone for your input!
FLAC does support replaygain.
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with FLAC and find that it works pretty well.
If you want to turn it off, you can do so with SlimServer and it will
simply ignore the tags and not apply the gain.
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the difference in a proper blind test, I would have to concede
the point. Ducks
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tone on the analog out? As
a more plausible example, what if it created some EMF that affected the
jitter on the digital path? Again, I am skeptical, but I must concede
the possibility.
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sufficient processing power to run
Inguz successfully.
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coming out of it are the same as those coming out of your CD
player.
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the uncorrected sound better. After listening to the flatter
sound for a few weeks and doing an A-B, I liked the flatter sound
better.
Your mileage may vary, but you may wish to listen for a few weeks and
then see what you think.
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DAC. The intent of analog mods is to improve
the SB when using its internal (perhaps modified or swapped out) DAC.
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identical files, then it is extremely unlikely that there is
any audible difference.
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has prohibition worked where there is both a
desire and an opportunity to circumvent it.
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it is
likely.
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audiophiles
darrenyeats,
You did not mention it, but is it safe to assume that you are streaming
from a WAV or lossless file, and that you matched sound pressure levels
for the comparison?
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per
second. At a high enough sampling rate though, the argument falls
apart, since there must be some sampling rate that is beyond human
auditory perception (even through golden ears).
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then you are using the
DAC in the Rotel.
For an inexpensive linear power supply, check out this thread.
http://forums.slimdevices.com/showthread.php?t=31971)
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or more to
compress, so if you can compress an entire CD in that time consider
yourself fortunate.
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pressing in accurate rip, but,
given the identical checksums in test and copy and EAC reporting no
errors, I have confidence that the rips are good. In my view, doing it
once and doing it right is worth the modest time and effort. YMMV.
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of its key discs.
If you haven't already, check out www.accuraterip.com.
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haunyack;192265 Wrote:
Has released a minor upgrade (1.1.4) FLAC and boy-howdy - it's very
quick now.
.
I run FLAC 1.1.4, and with my computer, while it is faster than
previous versions, it is still slower than the rip in all cases where
the CD is not damaged.
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ron thigpen;192313 Wrote:
jeffmeh wrote:
I always find that the FLAC compression takes longer than the EAC
rip,
so I do not worry about the ripping time.
This will vary depending on the speed of the host machine.
Before upgrading my box with new mobo, cpu and ram, FLAC took longer
there is probably no need. Obviously, if you transcode to MP3, you
will be using lossy compression, so the audio properties will be
affected.
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in the general sense.
Agreed, but let's also stipulate that it does prove that the SPECIFIC
subject of the test CURRENTLY cannot discern an audible difference.
Note the emphasis, as it says nothing about other subjects or even that
subject in the future.
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Pat Farrell;191340 Wrote:
jeffmeh wrote:
P Floding;191291 Wrote:
Let's just stress that a negative AB or ABX means very little.
Certainly proves nothing in the general sense.
Agreed, but let's also stipulate that it does prove that the
SPECIFIC
subject of the test CURRENTLY
before I
finish typing thi
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really can't be sure if the light really does come on in
your fridge if you are not watching.
Hello nurse, time for my shot already?
Would my audio sound better if I had a cat that was neither alive nor
dead? Maybe if I drew a picture of the cat with a pen treated by the
Belts?
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ron thigpen;191210 Wrote:
jeffmeh wrote:
Would my audio sound better if I had a cat that was neither alive
nor
dead?
The hifi always sounds better with the house cat in a box. No
bothersome mewling at the door, or using the speaker cloth as a
scratching post.
--rt
I cannot
I also seem to remember reading something about more than one type of
switching PSU being shipped as the stock PSU. If that is the case,
clearly there could be differences between them. It is conceivable
that one could generate much more problematic EMI than the other.
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imagine that She might object to being referred to as a
That rather than a Who. :)
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would not. I'm generally
pretty skeptical, but this reasoning seems sound to me.
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this space...
but don't hold your breath!
R.
Ah, flac2x. Perhaps you could extend it further as x2y. Then if
x=lead and y=gold we can anoint you head alchemist. :)
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Robin Bowes;189038 Wrote:
jeffmeh wrote:
Ah, flac2x. Perhaps you could extend it further as x2y. Then if
x=lead and y=gold we can anoint you head alchemist. :)
I do indeed plan to make x2y possible, but I think lead2gold may be a
step too far. Perl is good, but not *that* good
have the time, I would be
curious to know what you experience. Thanks.
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.
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audiophiles mailing
Skunk;187561 Wrote:
What I want to know is does the cord shrink when squeezebox is on
steroids?
I don't know about that, but if you have put the SB on isolation feet I
suspect they could grow by 3 sizes.
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had decided on a transport and I
wanted a better DAC, I would find a DAC that I like for much less than
$2k.
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Whichever is subject to more jitter, unless you have an extremely
revealing system, very good speakers, a room with good acoustics, and
some very keen ears, it is likely to be negligible.
If you possess all of the above, I'm envious, lol.
--
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, so I don't believe for a minute that bit
errors are creeping in to cloud the issue.
Actually, I was not referring to the differences between different
sources, but between the same source connected via coax vs. toslink.
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I ask the artist and track you used to peform the
experiment?
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, and
ears. It is probably negligible in most cases even where such a
combination exists.
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misrepresentations. I would not want to do business with an
entity with such low integrity. Assuming these allegations are true, of
course
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-music-player-review
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they have made any
other misrepresentations. I would not want to do business with an
entity with such low integrity. Assuming these allegations are true,
of course
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.
Personally, I do not think either of these is likely, but let's not
confuse possibility and probability.
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At http://libinst.com/Audio%20DiffMaker.htm, it states that the software
can record sounds at various sample rates and bit resolutions up to
24bit/192kHz...
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Hey, I'm pretty much of an audio objectivist, so I share your
skepticism. However, I cannot categorically rule out that someone
might be able to hear a difference on some system. An ABX test would
be pretty enlightening. :-P
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I believe Phil Leigh meant to quote regelma 1
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-out
or stutter.
From an underlying protocol standpoint, they are apples and oranges.
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. It certainly does not sound any worse.
However, for a $30 outlay and the time it took to change the PSU, I
feel no compelling need to do an ABX test, and I will just go with the
new PSU.
YMMV
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claimed that they can hear a
difference and that WAV sounds better. One hypothesis is that the act
of the SB decoding the FLAC to WAV changes something in the SB (perhaps
causes it to generate additional electromagnetic interference)such that
it is audible on some systems to some people.
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approaching this more as a logician than an engineer, lol.
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is
that it actually changes the data. Why either of these would cause it
to sound better is a mystery.
Yes, I am curious as to whether the pre-treatment and post-treatment
rips turn out bit-identical.
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care of them.
Basically, this is snake oil.
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illuminating results (pun intended).
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to 96 - 44.1
than simply throwing away 519 of every 960 samples in as non-adjacent
manner as possible, yes? Perhaps some type of algorithm that smooths
transitions? I really know very little about this domain.
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While you are listening you may want to try the SB analog outputs. To
start, I would compare the SB DAC with analog out to the DAC in the
TGP-5. You might find that you like one of those enough not to bother
with another DAC.
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was created by a rabbit wearing a top hat? :)
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