Hello, I always do analysis on wavs- these are simple to handle (known by Matlab for instance) and audacity treats them with ease. Rgds

Hello Petter.

I have some CDs engineered by Faulkner and some of them on the Hyperion label are very good indeed - for instance: Bantock: Hebridean Symphony, Celtic Symphony, The Witch of Atlas, The Sea Reivers - Vernon Handley, Royal Philharmonic Orchestra. Hyperion CDA66450. 1 CD. 1991.

I use the latest version of audacity to create the second graph. I have developed a small C#/Matlab application in order to verify the Audacity -and  it works as expected.

Rgds.

Yes filtering - reconstruction and noiseshaping.

The two following pictures show a spectral content likely to be as it should (24/96):



Rgds.

I have been checking a little on the usage of wasapi and my upsampler. I downloaded the software for this player (made some minor modifications) and the wasapi plugin to foobar and both fail to run - giving essentially the same message as does XXHighEnd. This means that it is wasapi as such that does not accept the upsampler I use, implying that XXHighEnd is not the problem. I have no time to delve into this problem now - but may happen to notify you if I find a workaround.

Upsampling while keeping bit depth (for instance 16 bit) may require dithering - tpdf for instance - and likely noise shaping to avoid inband unwanted distortion and noise. Adding bits is usefull and that's why I call them the dithering bits. I see no reason to further discuss these issues.

Edit - what about upsampling to DSD - where bit depth is reduced as far as it goes. (Sorry am at home with children and have too much time to discuss - but now I am finished)

Right, sorry wrong. I have written a Matlab/C#(.Net) application that analyses the output from Foobar/USB2.0. Do you think I trust what is written in the display of the Upsampler - which, by the way, uses 24 bits when doing the upsampling (dithering/noise shaping). Well - maybe I cannot use the XXHighEnd player in my system. I will have to check your claims about the WASAPI & USB.

Edit - your 1 and then 2 additional bits are probably what I call the dithering bits - well maybe you have another name for it.

Well, here you lost me - to put it simple: I don't understand what you mean. Are you somehow trying to indicate that USB2.0 does not work with XXHighEnd? Foobar2000 in version 0.9.6.1 works just fine - and yes I can play for instance 24/88.2. Yesterday evening I was listening to a 24/88.2 flac from Linn Records where Mackerras conducted Mozart 38-41 - very well played, indeed, and very enjoyable.


I use a dCS Scarlatti upsampler that comes equipped with USB2.0 input. The DAC is a dCS Paganini. They work in a combo - and I need the upsampler first because this is the component that connects to the PC using USB2.0.

1) I see that you use Vista Ultimate, I use Home Premium. Did you verify that the program runs under Home Premium?
2) DAC Test suddenly works and I get - when setting to #3 Engine - that none of the standard formats are supported by the DAC. I have tried both wav & flac. The only change is that more formats are tested with wav.
3) I use a dCS Upsampler that accepts USB2.0 + DAC combo. A friend of mine has the same equipment - but uses Vista Ultimate and it seems to work for him.

1) The demo does not work for #3 Engine, and so I run #2 Engine. I am not discussing conversion by XXHighEnd, but conversion made by Vista and how to avoid it? Installing a standard ASIO driver and using Foobar2000 (0.9.6.1) allows me to skip the Vista conversion and all formats I have can be played as native PCMs, i.e. 16&24/44.1, 24/48, 24/88.2 and 24/96.

2) The DAC Test does not run too?

I have tried XXHighEnd on two machines - an ACER laptop and a Fujitsu-Siemens Amilo Desktop. Two completely different architectures and configurations. The only similarity is that Vista Home Premium is installed on both. I have tried two XXHighEnd versions - the one mentioned here and "XXHighEnd-09-w7". The behaviour to be described is the same on both machines for both XXHighEnd versions: When setting #3 Engine the player does not start and after a while a dialogue saying something like "... bit sequence is not supported ... " pops up and the player shuts down.

Yes I have read, and read very carefully, the installation procedures and can for the time being see no errors from my side.

I have downloaded version XXHighEnd-09-w9b as demo and run it on a PC operating under Vista Home Premium SP1. I have one rather trivial question to begin with:

How do I in general avoid format conversions, in particular how do I avoid conversion of 24/88.2 to for instance 24/96 (if I assume the current Vista default)?

Regarding demo versions - why don’t #3 Engine and DAC TEST work with the demo version?