Archimago;686523 Wrote:
The interesting thing here too is that many music lovers (including
myself) seek out some of these early 80's CD's because they're not
over-compressed and loud like modern remasters, also, many are not
EQ'ed to compensate for those little white iPod earbuds or the
IMO, poor mastering and bad speaker choices = #1 reasons for digital
dissatisfaction. I think jitter has just become the next factor to
blame. ever notice the only time you think about jitter is when things
don't sound right? Does anyone think about high jitter when listening
to Morph the Cat?
Octavist I think many of us understand the concept of jitter and the
complexity. I'm just thinking pragmatically in terms of what is GOOD
ENOUGH so that it practically does not affect the ability to enjoy
what's there within the limits of the CD or digital download.
Like I say, ABSOLUTE
Archimago;686495 Wrote:
Octavist I think many of us understand the concept of jitter and the
complexity. I'm just thinking pragmatically in terms of what is GOOD
ENOUGH so that it practically does not affect the ability to enjoy
what's there within the limits of the CD or digital download.
Archimago;686495 Wrote:
Octavist I
Like I say, ABSOLUTE absence of jitter I suspect is impossible, but I
think that already we are at the point where jitter is inaudible.
That's why I would love someone with experience like Paul to chime in
on the question of whether he thinks it's an
paul frindle..dsp expert and digital audio guru
--
TheOctavist
VortexboxSBT(TT 3.0)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
VentiLink Audio K100
Phil Leigh;686504 Wrote:
Very much YES to your last point and this is why I believe many early
CD's were disappointing. As I mentioned elsewhere, I think jitter (very
high levels) was to blame, there were other factors too...
The interesting thing here too is that many music lovers
My respect for Mr Westlake has been restored:
'My Rohde Schwarz UPD audio analyser seems to be having issues with
its Jitter measurement option - so I'll refrain from saying any-more
until about Jitter levels until I can confirm its performance.
Logitech have gone to more trouble then usual to
Mnyb;686234 Wrote:
Yes I read that post to very helpfull of john s, no need to cry wolf
rigth now then ?
But does anyone have jitter measurment from the spdiff ? I'm painfully
aware of the fact that seem to be many ways of measuring it .
Stereophiles measurments is done via the analog
firedog;686254 Wrote:
It's pretty clear that as As far as jitter, some DACs handle it better
than others, but in spite of claims, no DAC eliminates it or is
immune to it. With a significantly better source (lower noise or less
jitter) sent to your DAC, you should hear a difference, assuming
darrenyeats;686270 Wrote:
You make two statements which are different Firedog. The first one is
purely about jitter, and I disagree with that one. There are DACs that
eliminate jitter e.g. Benchmark. Yes it's a claim as you put it, but
unlike your claim Benchmark publish measurements as
firedog;686274 Wrote:
I stand by my claim. The Benchmark doesn't eliminate jitter. It's a
marketing claim. If it is fed a jittery signal, there are methods for
improving the result, but the jitter isn't eliminated. In real life
there isn't digital audio with NO jitter - by definition. Low
In practice is this really a problem , that audiophiles regularly
reports it as a problem in their anecdotes is one thing .
But if it's still below our limit of detection ?
that limit of detections, when someone point to facts from a real test,
in this fora and other forums suggest that modern
Mnyb;686234 Wrote:
Can you assume that a device with reasonably ok jitter on the analog out
also must have ok jitter at the spdiff out ? They may differ ,but 10/1
or 100/1 difference ?
I'm probably entirely wrong here as this is not an area where I have
any expertise, but I always *thought*
garym;686291 Wrote:
I'm probably entirely wrong here as this is not an area where I have any
expertise, but I always *thought* from reading a bit that jitter was
only a possible issue in the context of digital transmission (the bits
and the timing of the bits.clock, etc.). I didn't
Mnyb;686294 Wrote:
Imho it's is in practice solved for end users , use a good dac :) enjoy
the music
;-) Agree (thus my use of Transporter or Touch Benchmark I DAC in
my two main listening locations)
--
garym
*Location 1:* VB Appliance 6TB (1.10) LMS 7.7.1 Transporter, Touch,
Boom,
firedog;686274 Wrote:
I stand by my claim. The Benchmark doesn't eliminate jitter. It's a
marketing claim. If it is fed a jittery signal, there are methods for
improving the result, but the jitter isn't eliminated. In real life
there isn't digital audio with NO jitter - by definition. Low
Thank you Adam.
Benchmark claims their UltraLock circuits eliminate jitter. Of
course, jitter is present after the UltraLock stage. In fact those
measurements I mentioned show there are sidebands in the output signal
caused by jitter. They are 140db down, but they are there.
Changing the jitter
The problem I have with these jitter threads (not just here but in
almost all audiophile forums) is that there's all this worry about a
phenomenon when few can even say what it sounds like or produce
examples for others to test. As I noted in the Paul Frindle thread,
research seems to suggest
To understand why it's complex we need to remind ourselves of what
jitter actually is. It's pitch modulation, basically like analogue
wowflutter, off-centered records, slightly untrue pulleys and
vibrating motors in vinyl players, dirt on tape machine capstans etc..
It's nothing more than that in
I read this about the Touch on another forum and would just like to
throw is open for comments:
'The biggest issue with the SBT is its very high jitter on the SPDIF
outputs due to the internal clocking arrangement, the SPDIF is
outputted directly from the freescale processor without
You have to be very sceptical about any jitter comments. There is no
standard way to measure jitter. So what jitter are they talking about?
Where did they measure it and how? What type?
In general the Touch is considered a relatively clean source in the
digital realm. Can you get something with
Covenant;686148 Wrote:
I read this about the Touch on another forum and would just like to
throw is open for comments:
'The biggest issue with the SBT is its very high jitter on the SPDIF
outputs due to the internal clocking arrangement, the SPDIF is
outputted directly from the freescale
It was John Westlake who made the comment in relation to the MDAC. I
suppose its a marketing ploy; disappointing as he is a respected
designer.
Firedog-I love the way my Touch sounds but I wouldn't be on the forum
if I didn't want better!
--
Covenant
Covenant;686162 Wrote:
It was John Westlake who made the comment in relation to the MDAC. I
suppose its a marketing ploy; disappointing as he is a respected
designer.
Firedog-I love the way my Touch sounds but I wouldn't be on the forum
if I didn't want better!
more info on this:
Yes I read that post to very helpfull of john s, no need to cry wolf
rigth now then ?
But does anyone have jitter measurment from the spdiff ? I'm painfully
aware of the fact that seem to be many ways of measuring it .
Stereophiles measurments is done via the analog outs.
Can you assume that a
Jitter is not a problem with the Touch. I promise.
Listen to music. Rest easy.
--
TheOctavist
VortexboxSBT(TT 3.0)Forssell MDAC-2Klein and Hummell 0300D
Sota Sapphire/Lyra KleosBespoke Valve Phono StageMastersound Due
VentiLink Audio K100
TheOctavist;686236 Wrote:
Jitter is not a problem with the Touch. I promise.
Listen to music. Rest easy.
I'm inclined think so myself.
--
Mnyb
Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x
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