JohnSwenson;578362 Wrote:
As I understand it the issue is how AC mains leakage current flows
between boxes. With unbalanced the leakage current goes through the
shield which is the voltage reference for the hot conductor, thus the
noise generated from the leakage current is directly added to
cliveb;578435 Wrote:
I think you have got to the core issue here. When I spoke of galvanic
isolation, I was thinking along these lines (that any leakages onto the
gound planes do not become part of the signal), but I used the wrong
terminology. Thank you for explaining it properly!
OK - I
Galvanic isolation with 2 wire current loops (4to 20mA, 0 to20mA or -20
+20 mA) is the norm in industrial applications where you have really
long cables in harsh environments, and also no voltage drop so no
signal loss over cable length.
Long cable means that the driver must put out more voltage
iPhone;578327 Wrote:
One can only hope. Do we really need more? Once they use Magic and
Night and Day Difference its time to hide your wallet!
Maybe I'm not an Audiophool after all because anybody that believes
that adding X (insert the accessory or after market product here) to
what they
I had PerfectWave DAC for about a week in my step (yet, my Transporter
is modded..), I connected PWD through Transporter AES/EBU output then
44.1/16 produced significantly wider soundstage, more analog-like and
much less grainy than of Transporter. Fabulous. With all my twists with
SOX
many thanks for your thoughts.
Michael - I think you're right about the PWD in terms of soundstage.
Even with a head-cold it sounds much more lifelike and spacious.
The integrated bridge really does seem the way to go, however I need
room correction and currently use a TACT mini for that -
seanadams;578418 Wrote:
Huh? If the levels are maxed into the ADC then you are getting all the
dynamic range of the LP, and then some. If the source medium is in a
quiet passage then whatever resolution you're talking about (relative
to its peak amplitude in THAT little section) was already
Phil Leigh;578308 Wrote:
No - rgh - start again :-)
Your TV analogy doesn't apply at all. Twice the pixel density = four
times the file fize = 4x information. Bit depth increase from 16 to 24
= file size goes up by 50% because each number (sample) being stored is
+50% more precise.
Michael - how would that work with (e.g.) the dnla compatible server
needed to feed the PSAudio bridge?
--
twheatley
twheatley's Profile: http://forums.slimdevices.com/member.php?userid=5167
View this thread:
Phil Leigh;578434 Wrote:
The resolution and maximum SNR/DR is a fixed property of the bit-depth.
What changes on a sample-by-sample basis is the SNR depending on the
sample value.
So a quiet passage won't have less resolution - all 16/24 bits are
still being used to represent it, but it
Phil Leigh;578434 Wrote:
The resolution and maximum SNR/DR is a fixed property of the bit-depth.
What changes on a sample-by-sample basis is the SNR depending on the
sample value.
So a quiet passage won't have less resolution - all 16/24 bits are
still being used to represent it, but it
Mnyb;578440 Wrote:
Sometimes you get your wishes fullfilled ;)
Passive Biwiring terminals and spikes on every speaker cus the
audiophools want it.
Even if it is pure BS science .
The benefits of bi-wiring are still the subject of debate but there are
very clear and audible reasons for
Tricky question, I do not know.
Did you try asking on PS Audio forum?
I personally use now Transporter with Behringer EQ in a fx loop.
--
michael123
michael123's Profile:
adamdea;578475 Wrote:
... i think the point is]
was that if you isolate the recording of a quiet sound maxing 7 bits
above digital noise floor, then this would be the same as a 7 bit
recording of this noise alone using the full dynamic range of the 7
bits. [snip]
...If you assumed that
ralphpnj;578486 Wrote:
The benefits of bi-wiring are still the subject of debate but there are
very clear and audible reasons for using spikes - they do provide
improve the performance of a given speaker.
Some audiophile tweaks are just bad or questionable science but many
others are good
mlsstl;578491 Wrote:
Having done a fair amount of analog recording with open reel over the
years, I can assure you that if you have an open reel with 65 or even
70 dB of S/N, when you have a quiet passage 50 dB down, you're still in
a spot where the recorded info still has only 15 or 20 dB
adamdea;578475 Wrote:
I think the point that was being made [and at this point I pause to
stress that it is not my point but i am telling you what i think the
point is]
was that if you isolate the recording of a quiet sound maxing 7 bits
above digital noise floor, then this would be the
On 23/09/10 02:48, earwaxer9 wrote:
I saw that you ripped 600 plus cds to hard drive in FLAC.
Get used to re-ripping your collection! I did the same (to WAV) and
ended up re-ripping to 24/96 WAV with dbpoweramp. The Transporter does
a better job with 24/96 than it does with 16/44.1. Dont
OGS;578474 Wrote:
I may have misunderstood how this works. I have no real experience with
recording live music so I appreciate the information you present Phil.
If you record an acoustic trio as loud as possible with no clipping in
24bit, in a hall with medium ambient noise, then when there
adamdea;578505 Wrote:
Yes I agree with most of what you say (almost anything recorded by
Hyperion sounds great for example). I also note that Gramophone
reviewers (who are plainly not neophiles) took to CD more
enthusiastically than Hi Fi reviewers. I cannot imagine wanting
regularly to
Mnyb;578495 Wrote:
It a very clear difference in using spike you tune in a resonance in the
midrange/lower bass it's very different indeed. I'm all for soft springy
feets tuned to the speakers weight.
like these:
http://www.sonicdesign.se/sdfeet.html
You can not make the speaker
1) replace the nasty TACT PSU with a linear one.
2) put the TACT in the Transporter FX loop (I assume the TACT Mini has
s/pdif coax in and out?
3) Stop using AES/EBU - it has higher jitter than coax!
--
Phil Leigh
You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what
Phil Leigh;578536 Wrote:
3) Stop using AES/EBU - it has higher jitter than coax!
Did you measure one in Transporter?
--
michael123
michael123's Profile: http://forums.slimdevices.com/member.php?userid=23745
View this
Phil Leigh;578438 Wrote:
OK - I can see all of that. These AC leakage currents come from where?
eddy currents induced in the casework? across the x-former secondary?
My guess is that they could come from a wide variety of places that we
routinely ignore. I have no figures to back up my
cliveb;578540 Wrote:
My guess is that they could come from a wide variety of places that we
routinely ignore. I have no figures to back up my suspicions. It's just
that over many years I have consistently found that balanced connections
sound cleaner than unbalanced, even using short cables.
michael123;578539 Wrote:
Did you measure one in Transporter?
We discussed not long ago AES/EBU vs. RCA in general, not specific case
for Transporter
It's in general - the impedance matching... the most crucial aspect of
a digital cable IMO - is all wrong with AES/EBU.
Remember, AES was not
Passive x-over is so 1950 , but i have them myself speakers are so much
an acoustic thing the selection of home active speakers is tiny.
So there you are, and even fewer have a working concept for active home
theater.
Prices extreme to say the least even if in principle it does not have
to be.
adamdea;578505 Wrote:
... Nevertheless the fact that CD can sound great does not mean that it
can't be bettered. Also I think that there probably is something
instructive to be learned from the fact that an awful lot of picky
people still seem to think there is something in analog that Cd
On 09/23/2010 01:51 PM, mlsstl wrote:
My frank opinion is that we need to send a lot of recording engineers
and producers back to school to learn to use what we already have as
opposed to investing in high-rez so we can hear poor recordings in even
greater detail.
Your opinion is uninformed.
mlsstl;578550 Wrote:
My frank opinion is that we need to send a lot of recording engineers
and producers back to school to learn to use what we already have as
opposed to investing in high-rez so we can hear poor recordings in even
greater detail. Just my 2 cents.
hear hear - Right on the
adamdea;578505 Wrote:
. -If you look at John Atkinson's measurements of a sine wave in dac
reviews, a good unit will make a sinewave that looks like (er) a
sinewave in 24 bits. But in 16 bits even the best players can only make
a squiggly thing half way between a squarewave and a sine wave.
Honestly having tried out the PWD, it does sound good and I have not
compared to a transporter, I don't like the concept of using straight
DLNA.
To me the SBS/iPeng interface is MILES ahead. Sure its not perfect but
man with trackstat and MusicIP it just kills what any DLNA based
interface
What is iPeng? :)
PS Audio hired 15 developers to write control software for PWD
It is quite big application that controls phase, upsampling, filters,
inputs, etc.
--
michael123
michael123's Profile:
I now use a SB3 coax out to feed the Benchmark pre. The squeezebox is
wired with cat cable to router. My question is whether there would be
improvement going to a Touch. Some 24/96 music, most is flac ripped
from cd. Expect new music to evolve to 24/96.
My system is Benchmark Pre, SB3, Michell
michael123;578563 Wrote:
What is iPeng? :)
ipeng is an app from itunes store that runs on iphone or itouch and it
controls all varieties of squeezeboxes. Very nicely I might add.
--
garym
garym's Profile:
pfarrell;578554 Wrote:
On 09/23/2010 01:51 PM, mlsstl wrote:
My frank opinion is that we need to send a lot of recording
engineers
and producers back to school to learn to use what we already have as
opposed to investing in high-rez so we can hear poor recordings in
even
greater
On 09/23/2010 03:29 PM, mlsstl wrote:
I'm not particularly interested in a debate over the job title of those
responsible for the general state of recordings these days. And I'm not
particularly convinced that some in the industry are blameless;
pressure to conform may be an explanation, but
pfarrell;578571 Wrote:
There are lots in the industry responsible, but its not because the
engineers are uneducated.
See the edit to my earlier comment regarding colloquialisms. When
you're a participant in an industry that's sailing off course, pot
shots should be expected. No different
mlsstl;578574 Wrote:
See the edit to my earlier comment regarding colloquialisms. When you're
a participant in an industry that's sailing off course, pot shots should
be expected. No different than a lawyer and lawyer jokes. Who wants to
be a member of the Church of the Perpetually Offended?
Bob Fifik;578566 Wrote:
I now use a SB3 coax out to feed the Benchmark pre. The squeezebox is
wired with cat cable to router. My question is whether there would be
improvement going to a Touch. Some 24/96 music, most is flac ripped
from cd. Expect new music to evolve to 24/96.
My system is
Hello again:
First of all, thanks to all of you who responded. Youve given me good
advice and I appreciate it. My thank you is tardy because we were
without internet service for two days. We live in a rural area and I
have limited ISP options. I envy friends that have cable, DSL, etc.
To
MBlue72;578592 Wrote:
Hello again:
First of all, thanks to all of you who responded. You#8217;ve given me
good advice and I appreciate it. My #8220;thank you#8221; is tardy
because we were without internet service for two days. We live in a
rural area and I have limited ISP options. I
I while back I was doing sound for a concert that featured a number of
artists and groups. This was in a venue where I designed the sound
system, I KNOW how to make people sound good in this space. But there
was one young lady whose manager refused to let me do my thing. He
insisted that I change
Hi All,
I no longer have new Transporters for sale as Logitech has run out of
them.
I do have an alternative player that will stream 24 bit 192K files over
the network,
the transporter is 24 bit 96K max.
The new product is called a Music Vault Mini.
It has a built in Optical drive so not only
JohnSwenson;578595 Wrote:
I while back I was doing sound for a concert that featured a number of
artists and groups. This was in a venue where I designed the sound
system, I KNOW how to make people sound good in this space. But there
was one young lady whose manager refused to let me do my
pfarrell;578571 Wrote:
On 09/23/2010 03:29 PM, mlsstl wrote:
I'm not particularly interested in a debate over the job title of
those
responsible for the general state of recordings these days. And I'm
not
particularly convinced that some in the industry are blameless;
pressure to
nealvb;578596 Wrote:
The Diamond version is the best sounding digital playback device on the
planet .
Which planet?
--
Phil Leigh
You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...
Touch(wired/XP) - TACT 2.2X (Linear PSU) + Good
Foolish me, I thought those spikes were just to keep the speaker in
place on my carpet.
--
Nonreality
-IF THE RULE YOU FOLLOWED BROUGHT YOU TO THIS, OF WHAT USE IS THE RULE.-
HTTP://www.last.fm/user/nonreality
Nonreality;578633 Wrote:
Foolish me, I thought those spikes were just to keep the speaker in
place on my carpet.
Yea that could be an application, is it not very popular with thick
carpeting that covers the whole floor in the US ?
--
Mnyb
:-)
--
gizek
Transporter Adcom GFP-750 Monarchy Audio SE-100 monoblocks Proac
Studio 100; Cardas Neutral Reference all over
gizek's Profile: http://forums.slimdevices.com/member.php?userid=34337
View this thread:
Phil Leigh;578530 Wrote:
1) 24-bit PRECISION. The ambient noise will be represented by word
values built from the sum of the lowest 14-15 bits.
2) 16-bit PRECISION. The ambient noise will be represented by word
values built from the sum of the lowest 6-7 bits.
With proper noise shaping,
51 matches
Mail list logo
