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346  Ultimate Audio Playback / XXHighEnd Support / Re: Build 10074 will not find NAS on: November 26, 2015, 12:07:18 am
Yes I've had the same issue. I think the NAS(I'm using another computer) needs the same date as the Audio server to network. I could see the NAS when the date was current for both, but 10074 won't work until the date is put back to September.

My Netgear NAS is working just fine in 10074 with the different dates on different computers on the network.
347  Ultimate Audio Playback / XXHighEnd Support / Re: Build 10074 will not find NAS on: November 25, 2015, 11:02:11 pm
Hello,

I have installed build 10074 twice and each time I am unable to get it to connect to the NAS music. I do not have any trouble making the connection on the newer builds.

Is it not making the connection because 10074 needs to be backdated ( I use Sept 6th)? Has anyone else had trouble with that build connecting to their NAS?

Thanks,

David

Ha, I am having the exact opposite problem...W10074 has been no problem finding the NAS but installing W10586 is problematic in that regard.  At this moment I am installing W10586 for the second time to see if I can get it to work.

Anthony
348  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: Windows 10 - my Personal Verdict on: November 24, 2015, 07:01:48 am
I agree with you 10074 is the best and I'm resigned to reset the date which isn't a major. Perhaps you would be better to find the date turnoff software switch and turn it back on in 10074!!!!

Will xxhighend 2.03 work better with 10074, or should one stay with 2.02?

Robert

I have done both Robert, and prefer XX2.03.  It is worth half an hour to install it and get it up to speed...plus you get Tidal which I will try soon.

Cheers,

Anthony
349  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: Windows 10 - my Personal Verdict on: November 24, 2015, 06:57:26 am

When you use W10 - unlike W8 - you are going to play with the SFS. Somehow this is necessary or otherwise you can't find your sound at all. What I did with the above comparison was letting 10074 be as it was from the last time I used it (months ago by now). This implied an SFS of 0.09.
All good.


Hi Peter,

Yep, I concur...SFS with W10074 matters a lot...more than ever that I can remember, but the sound you can get is so dynamic and clean and real.  I am trying to find my sweet spot between 0.05 and 0.12 SFS.

My wife (definitely a non-audiophile and lover of quiet) came into my office this afternoon and sat through the entire Abdullah Ibrahim "Senzo" at about 90dB average SPL (loud like we were sitting right at the piano in real life) and just listened without saying a word...she was even still happy when the album finished.  This is quite unusual behaviour for her so W10074 must be doing something right.

Seriously though, I have not played with the other W10's, and I am usually quite sensitive to balance when I hear it so I am just fine with staying at W10074 and going no further.  It is definitely ahead of W8 at the moment, although I will still install XX2.03 there just to see if it can wring any more performance from the old o/s.

Cheers,

Anthony
350  Ultimate Audio Playback / XXHighEnd Support / Re: PS2 Mouse not working on XXHighEnd PC on: November 19, 2015, 09:08:09 am
A ps2 mouse will not work unless it is plugged in before the computer is turned on.  They are not plug and play devices and as soon as you use a USB mouse the ps2 mouse may not function until the usb mouse is removed and the computer restarted.

If you are using a ps2 dongle or adapter, they are not all created the same and some work and some just don't.
351  Ultimate Audio Playback / XXHighEnd Support / Re: PS2 Mouse not working on XXHighEnd PC on: November 19, 2015, 08:58:25 am
Guys, is it a "pure" PS2 mouse or is it one using a PS2 adapter?
352  Ultimate Audio Playback / XXHighEnd PC / Re: Investigating a full linear PSU for the XXHE PC and NOS1 on: November 13, 2015, 05:37:28 am
Well, today I sent away some files to China to get some pcb's made for an ATX Control Board.  This board will talk with the motherboard and manage the computer power supply accordingly.  It should be able to be plugged into the P24 socket of any ATX compliant motherboard and manage power on and shutdown procedures.  As an extra it has over-current , under-voltage and over-voltage protection for all the rails going into the P24 socket, but not for other rails for HSS/SSD, USB cards, cpu et cetera.  If warranted, these can be added at a later date but not to the ATX Control Board because it does not handle those voltages other than simply turning them on and off remotely via an AC mains relay.  This relay sits on its own little pcb and is controlled from the ATX Control Board.

So, hopefully I can get this to work first time round, and then the fun and games can begin as various power supplies are developed and trialled to sculpt the best sound.
 
353  Ultimate Audio Playback / Chatter and forum related stuff / Re: Disk with Multi-RAM-boot available for purchase on: November 11, 2015, 01:09:18 pm
Yes please Peter.  I will ask around, we may have a few that can be sent out in the same package to Australia (you already know this, but I will ask the other NOS1a owners in my part of the world).

Cheers,

Anthony
354  Ultimate Audio Playback / Chatter and forum related stuff / Re: Mini Max DAC on: October 26, 2015, 10:37:25 am
P.s. Save and buy a NOS1a  Wink

 good good
355  Ultimate Audio Playback / XXHighEnd PC / Re: XXHighEnd PC with Windows 10 from RAM on: October 18, 2015, 03:16:31 pm
Peter, what size is the clone?
356  Ultimate Audio Playback / XXHighEnd PC / Re: Investigating a full linear PSU for the XXHE PC and NOS1 on: October 08, 2015, 10:48:07 am
As said, Windows 10 shows a tad of grey, although not many people will really notice. Anyway I do, and this is already because it's a character in the sound (of all). This disturbs me as I want all to be perfectly (??) neutral.

I notice that "grey" and it is one of the things that I want to remove with my playback...it needs to be gone!

The nerd part springs from here :

Just *because* I now knew how W10 can sound, and which is with more snap, not grey, more sprankle, I could see through my own settings possibilities and what to do to obtain that same sound. Sounds easy, and of course I only hoped for it, at first.
I came to this idea after an hour of playing or so, hoping that the (now) disturbing sound would have gone away with things getting warmer (ok, knowing that 20 minutes of playback is sufficient for that).

I was deliberating my purchase of an LPSU, meanwhile thinking about your efforts, Anthony, and how I could survive or again get used to what I had been used to for by now close to 3 months.

My SFS had been at 12 for the past weeks, coming from my more common 4, but remembering what ~ happens when I'd dial in 0.2. I try this some times, because I found that the Wallpaper Coverart shows normally, which otherwise (SFS at 4 or higher) is sometimes problematic in the RAM version of W10. Yes, somehow.
But that 0.2 never lasted for long although I forgot a bit exactly why (but it can last 30 seconds before sounds gets stable (not "scratching") after starting playback).

Well, I did that know too (set to 0.2), "hearing" that it would resemble the LPSU better, in advance. And God knows why - that worked. No grey anywhere.
Again a 45 minutes later I changed it to 0.1, having in mind the limit (which is for me 0.06 or so).
Haha, way better again (and I never before tried 0.1 or lower with W10).

Watch out please, because I only listened to one certain type of music, and it doesn't tell a thing about more normal music, like with voices etc. (they could be extra nasty). So this again needs more time.

The day after, I could try to reason out what actually happens, and it even seems possible to tell something about it. That is, since I the past few days was able to sort of figure out why the LPS sounds better than the SMPS, assuming the mains itself as the culprit (and not the computer interface or PC itself with now "better" power). So :

Well, when I was correct in my surging and too much spiking on the mains - the SPMS implying it, then lowering the SFS from 12 (or 4) to 0.1 is a simple 120 (40) times less spikey or 120 times more smooth if you like.
Point of course is that this reasoning equals that other reasoning (read : more chance to be correct with it).

This way of thinking is new, at least for me it is. I mean, so far it has always been about a too low SFS is skipping samples and things become more sharp (and pinpointed !) because of it, though while this is true, it is reasoning like a drag because this can only hold true for the very lowest SFS sesttings (say 0.08 and lower) because you start to hear it (I do clearly at 0.05 IIRC, although this is W8). But nobody is going to tell me that at the change from 4 to 12 to 60 you perceive a more and more "dark" sound because of less and less skipping samples. Thus no real explanation (up to the very end, I mean) in the losing samples reasoning.

This surging thing ... I like it and indeed it will work all the way of the SFS range (say from 0.1 to 470). It is only that once the SFS is somewhat higher (like 2) it becomes quite impossible to reason out what the OS is doing internally, hence is going to overrule my own software for being spikey.

Regards,
Peter


I love the way your mind works Peter.  You hypothesis seems valid on the face of things and it will be interesting to see where it goes.  The fact that you can ameliorate much of the influence of the LPS with software is exciting.

With the NOS1a noise should not be getting in via the USB cable, but could potentially airborne or via the mains or both.  But USB cables make a difference (this one I cannot figure out)!  Is there potentially another mechanism at work here via the USB, or are we hearing the effect of the USB via the computer back to the other modes of noise transmission?

 
357  Ultimate Audio Playback / XXHighEnd PC / Re: Investigating a full linear PSU for the XXHE PC and NOS1 on: October 07, 2015, 07:01:59 am
Well, how did it go Peter?  Can you do without a LPS?
358  Ultimate Audio Playback / XXHighEnd PC / Re: Investigating a full linear PSU for the XXHE PC and NOS1 on: October 05, 2015, 12:50:29 pm
Peter, are you able to experiment with capacitor banks after the SMPS?  Those low voltage caps are pretty cheap.

I really like your thinking regarding capacitance and mains surges, but don't have time tonight to explore it further.  One thing to think about is that there are people that have been playing around with LPS for some time that suggest that a choke filtered supply is the best of the best.  Probably something to do with the shape of the ripple and the choke filtering out the higher frequencies in the noise.

Another thing to think about are snubbers between the transformer and rectifiers.  I have not had a look inside the NOS1a to see if these exist, and I certainly don't know if they are employed in the Teradak, but transformer ringing may be quite an issue for the low noise performance of the NOS1a...I was going to experiment with snubbing down the track but I thought I should mention it now.
359  Ultimate Audio Playback / XXHighEnd PC / Re: Investigating a full linear PSU for the XXHE PC and NOS1 on: October 05, 2015, 10:51:50 am
So ...

Yesterday was day 6 with the LPSU and it is glory all over.
N.b.: Right now we are packing it for shipment to the person who is going to mod it.

I already feel sad and I want one myself ... (the one I used is for a customer).



Yesterday, knowing that my standard round of 5 days passed in well fashion, I thought to try once again what I felt from the start to be better ... Windows 8.

Ohhhhhhh
was I right.

So far, only in between the lines I have told that Windows 10 isn't the better one at all. However, it performs better because it makes more music. But there's a grey-ish "rounding" flavour.

Big fun : with the LPSU this disappears largely. Maybe even completely. "Maybe" because it is quite hard to pay attention when things sound so good in the first place; as I told - nothing jumps out or disturbs and albums play and play.

Back to a week ago : remember that I started out with the LPSU not in mains earth, and that *that* completely failed. I started with using Windows 8 because I felt or hoped or just knew it should be the better one with the LPSU. But it was misery all over and I shoveled in Windows 10;
Was a bit better but still "non-sense" and then I found the mains earth thing (needs to be used). And then Windows 10 stayed in.

Up to yesterday;
The PSU has to go today, so I sure wanted to try Windows 8 once more.
What did I say ?

Ohhhhhhh

This time I received the "total accuracy" together with music.
Big fun again : I am not even so sure the distance with Windows 10 was large, but Windows 8 just plays "better". Really difficult to explain, but the performers are "better" when played through Windows 8.



So there's a difference of night and day between W8 and W10 when the normal switching PSU is used, and there's hardly a real difference between the two when used with the LPSU.

Now I wonder what this tells ...
Anyone with ideas ?

Peter


Thanks for your further comments Peter.  Looks like the ATX LPS is a definite prospect then. 

I have no idea why it brings W8 closer to W10, or vice versa, but it is an interesting thing to speculate.  Are you running both W8 and W10 operating systems from ramdisk without a hard drive of any type in the PC?  I guess I am asking if the hardware is all the same in these comparisons?

Regards,

Anthony
360  Ultimate Audio Playback / XXHighEnd PC / Re: Investigating a full linear PSU for the XXHE PC and NOS1 on: October 05, 2015, 10:47:38 am

Hi, Anthony

Could you  please share what kind of controler you're going to use for the ATX start and shut-down ?
So I can leave my DC/DC converter and the relays I am using now?
Thanks,
Ed



Hi Ed,

At this stage the controller will be a little SMD board which will do three primary things:

  • monitor voltage and current on three or four power supply rails downstream of the individual rails
  • communicate with motherboard to start and stop the computer
  • control one or more mains relays to control operation of the various power supply rails

Of course I am unfamiliar with your DC-DC converters and relays, but you will be able to connect the output of your supplies to this pcb so they can be monitored and if your relays have 5V coils, are non-latching and NC type there may be enough current available to switch them, but there are no guarantees in that regard.  If you like you can post a link to the datasheet of your relays and I may be able to consider them when I prototype the board shortly.

Regards,

Anthony
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