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466  Ultimate Audio Playback / Phasure NOS1 DAC / Re: Power Supply Noise measurement on: May 11, 2014, 02:17:14 pm
Quote
I notice that the two graphs from the first post go out to 90MHz with those excellent results.

Haha, maybe, but then I need to hook up another analyzer first. So, 96 KHz this shows (but there is no reason for ultra high frequency spuria unless sourced from my own house (like you see my ever and old PWM heating pump close to 18KHz).

Sorry, thought a "K" and typed an "M".
467  Ultimate Audio Playback / Phasure NOS1 DAC / Re: Power Supply Noise measurement on: May 11, 2014, 01:13:30 pm
The other thing that has probably happened with the use of cutting edge voltage regulators is that the total bandwidth of the noise that you have under control is much greater now as well...I notice that the two graphs from the first post go out to 90MHz with those excellent results.
468  Ultimate Audio Playback / Phasure NOS1 DAC / Re: Power Supply Noise measurement on: May 11, 2014, 12:59:40 pm
Hey Anthony,

Quote
PS:  Great to see this coming out!!

Haha, yes, you know I was working on that (with you working in similar areas). But yes, after what ? 3 or 4 months on this little subject only and two versions of it, it worked out completely as expected;


Yes I did know what you were up to (and I have a good idea of what you have yet to come!) and I must say Peter that I still feel privileged that you kept me in the loop during the processes of throwing ideas around, designing the upgrades and the even the initial results.  Here I am, a guy from the other side of the world that you have never met but we bounced ideas around, I learnt a hell of a lot, and you placed a lot of trust in me.  Thanks for that...it was one of the things that I will remember for a long, long time.


Hey Anthony,

Quote
PS:  Great to see this coming out!!

I honestly don't recall what the previous measurements were (never took screenshots of that either) but depending on where it was measured (USB, clocks themselves, DAC sestion postitive vs. negative) I recall something like 10s of mV (USB could have been over 100mv) to 3mV or so. Don't pin me down on this.
(I could measure an "old" NOS1 though)
This now all is under 2uV up to a theoretical 1.5uV RMS. "Theoretical" because the measurement wires (antenneas) catch 50Hz (as the mains is over here) which make it wobble somewhat (you can see that in the left hand side of the screenshots). Not sure how to measre the supply noise without the measurement wires. innocent (all is on PCBs).
Also see below snapshot. White trace again is the supply noise ves red the normal output. You can see the "wobbling" which without measurement wires is not there. Peak to peak of the white trace is around 7uV.

Btw, I am not sure whether you meant this kind of improvement ?

Regards,
Peter


The old "the act of measuring changes the results" conundrum.  I don't have anything to suggest about getting around that, but it is good that you are able to identify it.

My (ambiguous) question about the kind of improvement was basically about comparing say the -155dBFS at the output with the new power supplies and say -1??dBFS for the currently available version of the NOS1.  At these sorts of numbers I would imagine that the noise improvement at the outputs would be barely audible (if at all) but of course things are never so simple because you have separately powered items within the NOS1 that we're not individually powered before eg. clocks, gain stage.

BTW:  when can we get our hands on this???
469  Ultimate Audio Playback / Phasure NOS1 DAC / Re: Power Supply Noise measurement on: May 11, 2014, 12:00:08 pm
Hi Peter,

Are you able to give an indication on the improvement in noise that you have achieved with the new power supplies?

Cheers,

Anthony

PS:  Great to see this coming out!!
470  Ultimate Audio Playback / XXHighEnd Support / Re: iPad app for Remote Desktop? on: April 25, 2014, 09:52:23 am
Quote
I do not like the OSK hanging over the front of XXHE when I am setting a playlist or fiddling with settings.

In that case I'm afraid you don't know how to use it. I mean, you should use the horizontal bar type with all the Alt-keys and that is all. Besides that you use the keyboard provided by the app concerned and NOT the full fletched OSK "keyboard".
But if it doesn't work anyway ...

Please notice : This whole excercise is not a matter of trying to get a random "RDC" app to work; the real work is in the finding of the proper app. So if you just tried a first then the chance is around zero that will work. And this is what you are trying to accomplish.

As long as nobody else comes up with something better, it is TeamViewer. At last that works (and IIRC it also doesn't require the XXHE OSK for the alt keys - but not sure).
BUT
As said, TV is akward in fireing it up, although more possibilities exist for that which maybe nobody explored - at least not me.
Lastly, if I compare TV to the one I chose for Android, TV is nowhere. So just saying.

Btw, I used it with a W8 host so that sure works (or worked Wink). It is only that this W8 was not the audio PC itself, because that W8 used normal RDC to the audio PC which was W7 in my case. So, more complicated, but at least the tablet communicated with a W8 machine.

I will try using it myself again (direct to W8) because I planned that anyway. Will try the iPad too and see what's new these days.

Peter

I can't get Teamviewer to work for this application.  It constantly crashes.
471  Ultimate Audio Playback / XXHighEnd Support / Re: iPad app for Remote Desktop? on: April 25, 2014, 08:36:20 am
The OSK does not work for me in either w7 or w8, it just causes windows to hang on the XXHE PC, but to be honest I am not sure I would use it if it did work, I would most likely just use the WRD keyboard because I do not like the OSK hanging over the front of XXHE when I am setting a playlist or fiddling with settings.

So, nothing for you to do, unless you can make OSK sit behind XXHE (in which case I would use it) and then not cause a heart attack when it is used when music is playing.

I tell you what though, I have had the day off today and have enjoyed being able to let the music drift through the house and not have to return to the computer to change what is playing.  That is really nice.

Anthony
472  Ultimate Audio Playback / XXHighEnd Support / Re: iPad app for Remote Desktop? on: April 25, 2014, 01:42:38 am
Anthony, I assume you read this : Using the On Screen Keyboard ?


I had read that link thanks Peter.


PS: It can very well be that nobody used any remote tablet any more since W8 (and when on W8) because "officially" it required the Bluetooth Dongle, and that in itself wouldn't run under W8 well.

Yes Peter, that's right, I am not using the bluetooth dongle, just a my home network.

This morning I went into w7 and setup WRD and it has no better functionality than with w8, although the problems are a little different.  After any Alt-? button is pressed on the OSK the music stops and the XXHE frontend is brought up although unlike with w8 the "touch" functionality is still working.  If I exit the OSK and use  the WRD keyboard to do any on the Alt-? functions it works perfectly.

So, back in w8, when I play a playlist and then Alt-X from the WRD keyboard back into XXHE the "touch" does not work at all.  However, if I break the WRD connection and then start the connection afresh the "touch" functionality is back, which tells me that the problem is with WRD on the iPad or RD in w8 or both, and not any fault with XXHE.  It is interesting that connecting into different o/s from the iPad gives different behaviours though.

So with that interesting behaviour in mind I started music playing in w8, broke the WRD connection and restarted it to see if the OSK and touch functions would work at all.  Well, the OSK has reverted to the w7 behaviour during playback whereby you press Alt-? on it and it stops the music playback and the XXHE frontend loads again and when the frontend comes back the "touch" functionality works.  So it seems as thought the w7 and w8 problems are not that dissimilar afterall.

Regards,

Anthony
473  Ultimate Audio Playback / XXHighEnd Support / Re: iPad app for Remote Desktop? on: April 24, 2014, 10:40:42 pm
a. I think you can very well shape all for the normal functions used (no real compromises here);
b. You can save the settings under a User Setting in the left (those 5 + 1 small buttons).

-Just programed button 1 for my iPad and button 2 for my Laptop. Took less than a minute and works great! very happy

------------

Now, how do I get around my Windows Defender in order to get Unattended playback? (ref the other thread).

Go to Control Panel > Administrative Tools > Services > Windows Defender and stop it and disable it so it does not  start again when you reboot.
474  Ultimate Audio Playback / XXHighEnd Support / Re: iPad app for Remote Desktop? on: April 24, 2014, 01:31:11 pm
Quote
XXOSK.exe is not functioning as expected

Anthony, I already had the idea you were referring to this but wasn't sure. Can you describe the problems you encounter with exactly this ?

Peter

Hi Peter,

I have just tried Teamviewer and am having similar issues with it as with WRD.  I do much prefer the WRD approach so I will try to get it working properly, which it is now but only with the "mouse" and not with the "touch" input method.

So, what seems to be the issue with XXOSK.exe?  To be honest I am not exactly sure how it should be started or when it should be started or whether XX.ahk should be disabled or kept running.  The way that I am using it now is that I have a shortcut to it on my desktop and I click on that to get it going and then I start XXHE.  When I do that though the OSK sits over the top of the XXHE library front end which I would have imagined that it would not be required to do until playback starts.

Secondly, I have setup the coverart to show as the background in unattended (I don't normally bother with coverart at all so this is new to me) but I only manage to get the album and track names and even the little track timer in the bottom right of the screen but the coverart never shows.  I suspect that this is another problem not related to remote desktop so I will read through the coverart tips in your help and tutorial section first.

Thirdly, as soon as playback starts the OSK is non responsive to "touch" but if input is set to "mouse" then it works just fine, but is a pain to scroll through things.  When the OSK is non-responsive after playback starts I can bring up the WRD keyboard and alt-x will work just fine to bring back the XXHE frontend.  The OSK is still shown over the top of XXHE but does not respond at all and in fact "touch" does not work anywhere on the iPad screen.  I must then change back to "mouse" and OSK becomes responsive as does XXHE.  I suspect that there is a service that is being shutdown when playback starts that is necessary for "touch" to remain functioning, but of course I have no idea if that is true or what that service may be.

All in all though Peter, I like the look and functionality of the remote desktop control from the iPad but just need to iron out a few kinks right now.

Regards,

Anthony
475  Ultimate Audio Playback / XXHighEnd Support / Re: iPad app for Remote Desktop? on: April 24, 2014, 09:33:27 am
Thanks Peter,

I will give Teamviewer a go.  The app I am using now does have a "touch setting" and although it works well before the first playback it does not seem to work well after playback starts.  I don't know if this is because the XXOSK.exe is not functioning as expected or if it is a problem with the app itself.

Regards,

Anthony
476  Ultimate Audio Playback / XXHighEnd Support / iPad app for Remote Desktop? on: April 24, 2014, 06:58:57 am
Hi All,

So I have finally tried to get a remote control operating for XXHE.  I have installed Microsoft Remote Desktop 8.0.5.24403 onto my iPad and managed to get it connected to my network via wifi to my modem-router.  My XXHE PC is LAN connected via cable and currently draws its music files from a NAS at the other end of the house.

So, no too much trouble getting the iPad to talk to the XXHE PC and run the Microsoft Remote Desktop software and I can get music to play and tracks to change but not in the manner that I expected because I have to use the "mouse" in RDP and not "touch" (I hope you get what I mean by this). 

There are a few things that are bugging me about this method of remote control (wallpaper not showing, the OSK - On Screen Keyboard - not working, the "touch" feature being unreliable) but I am hoping that they are all able to be fixed by changing my iPad app for RDP.

So, what do you guys use?  Is anyone successful with something other than Microsoft Remote Desktop for the iPad?

Cheers,

Anthony
477  Ultimate Audio Playback / XXHighEnd Support / Re: WIN8 stops on: April 14, 2014, 09:18:33 am
My cpu is at 12 but my cpu is different to yours Gerard.  I don't have any MP3 to test for you right now to see if they work for me now that I think my problem is fixed.

Actually, I will see if I can drag some MP3 from my wifes iPod and report back to you Gerard.

Anthony
478  Ultimate Audio Playback / XXHighEnd Support / Re: WIN8 stops on: April 14, 2014, 09:09:40 am
In case people need it :

Look for a hyberfil.sys file in the root of our OS disk. It's a plain copy of your memory, just in case the PC falls asleep - never mind you told it to never do that. That too is just maintained (and consumes your precious SSD space ...). Btw, the most unambiguous way to shut it off is to go to the command prompt (cmd in Run) and type this :

powercfg.exe -h off

Don't forget to press Enter, and next reboot.
Notice though that now all your hybernate and sleep whatever options will have disappeared from the menu's. To get them back, change the "off" into "on" for the mentioned command.

Btw, I can imagine this needs a command prompt "Run as administrator".

Peter


I could not get that way to work.  In the end I went Control Panel>Power Options>Choose What the Power Buttons Do and then cleared hibernate from everywhere on that screen.
479  Ultimate Audio Playback / XXHighEnd Support / Re: WIN8 stops on: April 14, 2014, 09:06:08 am
But Anthony, I thought you already tried Coen's solution ? Ok, maybe not all of them - I didn't even read about this explicitly (kill hybernation).

But notice this has been described by me as any sorts of possible culprits (but not in this topic maybe) because what W8 applies there is a kind of dirty/dangerous trick. So, what actually happens is that at shut down the memory will be in the hyberfil.sys and at the next boot that is just read into memory so many things don't need to be re-initialised. And I guess that is a too dangerous thing for some parts of the OS, and it could even include SQ itself.

Notice that in the end Coen came up with this indirectly because that second boot needed (from cold). Ok, that would testify some other way around, but alas.

So not that I could reason this out in advance, but it really makes sense to me, once it has been proven that this cures the culprit.
That I missed it or forgot is something else. scratching

Regards,
Peter

Hi Peter,

When I came back to w8 a couple of weeks ago hibernation was already disabled from when I was using w8 before I went to w7, but I got the stops with 1.186(d) installed.

As part of my trying to get things to work I re-enabled hibernation and tried to get music playing stop-free before I re-disabled hibernation, but in over a week of re-starting I could not get stop-free playback.  Of course I did get impatient a few times and disabled hibernation from a a situation of play stopping but like Coen said, it did not work so I re-enabled hibernation in the hope of getting to the situation of stop-free playback so I could then disable hibernation.  And what do you know, for whatever reason today I did get stop-free playback without changing a thing so I disabled hibernation again and it seems to have stuck through some restarts so hopefully it all works tomorrow.

Fingers crossed.

Regards,

Anthony
480  Ultimate Audio Playback / XXHighEnd Support / Re: WIN8 stops on: April 14, 2014, 08:35:31 am
I give up, I have no idea what is going on.  This morning I fired up the computer selected an album and suddenly about 40 minutes later the whole thing had played through.  What?  No stops?  I've done nothing since yesterday except shut down the computer and then restart it this morning.  I've not adjusted the BIOS or any windows settings or XXHE settings or anything else.  So what is happening? 

So, realising that I had an album play through for the first time since I came back to w8 a couple of weeks ago I took Coens recommendation to disable hibernation and played tunes all day today.  Just to make sure everything was working properly I have shut down and restarted four times and each time have struck no problems.

I'm lost and have no idea what was going on before because I did exactly zero to fix it other than the hibernation thing when I realised all was working properly.  So Peter, problem solved?? scratching

Anthony
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