Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-27 Thread Phil Leigh
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-27 Thread steveinaz
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?

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-26 Thread Archimago
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-26 Thread Phil Leigh
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.

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-26 Thread adamdea
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-26 Thread TheOctavist
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-26 Thread Archimago
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread Covenant
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread firedog
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread darrenyeats
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread firedog
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread Phil Leigh
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread Mnyb
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread garym
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*

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread Mnyb
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread garym
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,

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread adamdea
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread darrenyeats
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread Archimago
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-25 Thread TheOctavist
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

[SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread Covenant
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread firedog
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread Phil Leigh
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread Covenant
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread garym
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:

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread Mnyb
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread TheOctavist
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

Re: [SlimDevices: Audiophiles] Jittery Touch

2012-01-24 Thread Mnyb
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