Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread Julf

netchord wrote: 
> you misstate what I, and likely most other subjectivists believe:  "If I
> hear it, I hear it."  i can then decide whether to spend the time/money
> to address what i've heard.  in the specific instance mentioned here,
> there's no time difference, and the money (in storage) is negligible.

And that is of course fine in a subjectivist, "everybody is right"
world, and if we would be discussing the taste of chocolate or opinions
about art, it would be a totally valid form of discourse. 

When discussing the audibility of different file formats (or cables, for
that matter), your "If I hear it, I hear it" would have to be restated
"If I think I hear it, I believe I hear it" to be technically valid.
Reproduction of audio is an area of engineering (a form of applied
science), so the rules of science apply. It's not just a bunch of
subjective opinions. 

Let's say you take a walk along the shores of Loch Ness, and see a huge
aquatic animal out in the lake. Based on the subjectivist position of
"if I see it, I see it" you would accept that Nessie exists, and it
might cause you to spend time and money as a result. A more scientific
approach would be to admit that it is easy to be influenced about all
the stories about monsters in Loch Ness, and that a lot of floating
objects might look like an animal in the dusk, so independent and
objective verification might be a good idea.



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] Technical Question: Is the amount of jitter a function of the type of connection?

2015-09-22 Thread Mnyb

What I mean is does the amount of jitter vary for different types of
connection?

\"YES\"

So is there more or less jitter present in a USB connection than in a
coax connection?

\"IT DEPENDS ON THE TYPE OF USB AND CAN BE IMPLEMENTATION DEPENDENT YOU
CAN NOT SAY UNLESS YOU HAVE TWO MEASURED EXAMPLES TO COMPARE . HOWEVER
ASYNCHRONOUS USB 2 MAKES IT SOURCE INDEPENDENT AND IT'S JUST WHAT THE
DAC DOES THAT'S MATTER \"

More or less jitter present in a coax connection than in an Ethernet
connection?

\"N/A ETHERNET IS NOT THAT KIND OF INTERFACE . THE COAX SPDIFF INTERFACE
HAS THIS . ETHERNET IS ALWAYS ASYCHROUNUAS AND BUFFERED FOR OUR
PURPOSES\"

More or less jitter present in an Ethernet connection than in file
played from a memory buffer?

\"N/A YOU CAN NOT PLAY DIRECTLY FROM ETHERNET , THERE IS ALWAYS AN OS
AND A MEMORY INVOLVED . IT'S LIKE ASKING IF A DOWNLOADED FILE GETS MORE
JITTER OVER TIME ;) SO THESE TWO ARE THE SAME YOU ARE PLAYING FROM A
MEMORY BUFFER WITH ETHERNET , PULL THE WIRE FROM YOUR SQUEEZEBOX AND IT
WILL PLAY FOR ALMOST 30 SECONDS\"

More or less jitter present in a file played from a standard hard drive
or a file played from an SSD?

\"N/A THAT'S NOT HOW THINGS WORK, NOT IN A DIRECT WAY THAT REALLY
MATTERS\"

More or less jitter present in a file from an SSD or a file played from
RAM?

\"N/A THAT'S NOT HOW THINGS WORK, NOT IN A DIRECT WAY THAT REALLY
MATTERS\"

And finally: Is some amount of jitter always present regardless of
connection type?

A TENTATIVE YES , BUT THE KEY IS A CONNECTION THAT'S TIMING DEPENDENT ,
THIS IS USUALLY BETWEEN DIFFERENT MACHINES AND WITH PRIMITIVE INTERFACES
LIKE SPDIFF WHERE A TIME BASE IS DERIVED FROM THE SIGNAL ITSELF . THE
DAC SYNC ITS PLAYBACK ONTO THE 44.1 IT CAN DERIVE FROM THE SPDIFF
CARRIER

Please note: I am not trolling, I am trying to get a better
understanding of jitter and what causes jitter in the first place.

\"ITS NOISE IN THE TIMING OF A SIGNAL BUT THE CONTEXT IS IN AN INTERFACE
WHERE IT'S MATTERS . LIKE IN DA CONVERSION WHERE THE DAC TURNS A 16 BIT
WORD INTO A VOLTAGE EVERY 1/44.1 SECOND THE TIMING OF THIS MUST BE
PRECISE, NOTE MY EXAMPLE IS SIMPLIFIED DAC ARE MORE INVOLVED THESE
DAYS\"

-"But this is more or less a solved problem it's not present in audible
quantities in modern DAC's and the question does not really apply to
what's going on inside a computer . It's a popular marketing term as it
can always be improved in minute increments ;) "-




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[SlimDevices: Audiophiles] Technical Question: Is the amount of jitter a function of the type of connection?

2015-09-22 Thread ralphpnj

As I asked in the thread title: Is the amount of jitter a function of
the type of connection?

What I mean is does the amount of jitter vary for different types of
connection?

So is there more or less jitter present in a USB connection than in a
coax connection?

More or less jitter present in a coax connection than in an Ethernet
connection?

More or less jitter present in an Ethernet connection than in file
played from a memory buffer?

More or less jitter present in a file played from a standard hard drive
or a file played from an SSD?

More or less jitter present in a file from an SSD or a file played from
RAM?

And finally: Is some amount of jitter always present regardless of
connection type?

Please note: I am not trolling, I am trying to get a better
understanding of jitter and what causes jitter in the first place.



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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread netchord

Julf wrote: 
> Good point. It also leads me to ask if the subjectivist view of "if I
> hear it, it must be The Truth" is either the ultimate in solipsism, or
> just extremely arrogant.

you misstate what I, and likely most other subjectivists believe:  "If I
hear it, I hear it."  i can then decide whether to spend the time/money
to address what i've heard.  in the specific instance mentioned here,
there's no time difference, and the money (in storage) is negligible.



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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread Audiotic

.moving right along! In any case, I love my lossless collection
which has close to 1000 hires albums (yes, a fortune). And played
through standard STP and UTP cabling here to my streamer and DAC. But
mainly - I enjoy my music. End.



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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread Julf

marcoc1712 wrote: 
> Sure if I heard it it's real for me using my system

I guess that then comes down to your definition of "real". It still
assumes your senses are infallible.

You are the only one using absolute terms here, pretending to know "The
Thruth".

That is actually pretty much opposite to what I am actually saying. All
I am asking is "how do you know what you think you know". 

> Please let's start with the ABX, I'm here waiting for you...

What exactly is it that you are waiting for?



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread alfista

Julf wrote: 
> I suspect those who live in the wonderful make-believe world of unicorns
> and fairies enjoy their music more than I do, but then again, there is
> more to life than just audio...
Dunno, I would say that a near pathological focus on finding the
imaginary flaws that need imaginary remedies doesn't strike me as a way
of enjoying the actual music.



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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread marcoc1712

Julf wrote: 
> Good point. It also leads me to ask if the subjectivist view of "if I
> hear it, it must be The Truth" is either the ultimate in solipsism, or
> just extremely arrogant.

Don't know, not interested about, never said this and sure is not my
mind.

Sure if I heard it it's real for me using my system, if soemone else
said he could hear it in other systems I suppose it could be real in a
more generic way. You are the only one using absolute terms here,
pretending to know "The Thruth", mocking others and putting words in
others mouth.

If I'm arrogant, how we should call you?

Please let's start with the ABX, I'm here waiting for you... 








Shall we start the ABX?




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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread Julf

marcoc1712 wrote: 
> Sure, doing what you are doing here, as an example.

Good point. It also leads me to ask if the subjectivists view of "if I
hear it, it must be The Truth" is either the ultimate in solipsism, or
just extremely arrogant.



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread marcoc1712

Julf wrote: 
> I suspect those who live in the wonderful make-believe world of unicorns
> and fairies enjoy their music more than I do, but then again, there is
> more to life than just audio...

Sure, doing what you are doing here, as an example.




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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread netchord

Julf wrote: 
> I suspect those who live in the wonderful make-believe world of unicorns
> and fairies enjoy their music more than I do, but then again, there is
> more to life than just audio...

but not more than music.



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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread Julf

netchord wrote: 
> do you enjoy the music more, constantly checking your audio privilege?

I suspect those who live in the wonderful make-believe world of unicorns
and fairies enjoy their music more than I do, but then again, there is
more to life than just audio...



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] Once again - does wav sound different than flac?

2015-09-22 Thread Archimago

Mnyb wrote: 
> He he is it not another trend by the golden eared to not have sufficient
> buffers and try make the PC behave as much as possible as a bad old CD
> player and stream continiusly with very small buffers ? 

Interesting observation Mnyb. I really wonder who started this idea
about small buffers or even shutting off all buffers and essentially
polling the CPU to feed data. I commented on this weirdness with the
'JPLAY software back in 2013'
(http://archimago.blogspot.ca/2013/06/measurements-part-ii-bit-perfect.html)
as this was the recommendation of "practitioners" of the software back
then... You'd think that adding to CPU load (from something like <3%
with decent buffering to >15% with tiny buffers when I tested) would
"logically" increase "noise" and "jitter" given how concerned some folks
seem to be about all this stuff in computer audio.

I'm guessing they're still of that mindset these days. Of course, none
of this made any audible difference to me nor measurable difference even
with null testing. To add insult to injury, hilarious that JPLAY still
had the 'same bug in 2015'
(http://archimago.blogspot.ca/2015/08/measurements-audiophile-sound-and.html)
as reported in 2013 with 24/48 Kernel Streaming! Good deal at a mere
99Euros when foobar can be had for free :-).



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