Hi Stan,

If you want to keep the ps/2 option open, be shure to select a mobo with TWO ports, one for the keyboard and one for the mouse. (purple and green). Most mobos do have only one OR port sadly, and splitters do not work here.

Regards, Coen

With my previous mobo, anything on USB other than nos1 was detrimental to the sound.

With my new setup I can still hear the sound relax a bit when i unplug my wireless usb-ghz mouse. I am still looking for a solution since my mobo only has a mouse OR keyboard port .

I would definitely advice a wired ps/2 solution for best sq if possible. With a kvm cable you can extend those to your listening seat.

Regards, Coen

Thanks Praphan,

I am just getting the finger behind 'real' vs 'HT' cores. The virtue of HT is more efficient use of the cpu when multi threaded applications run. This effect is real but is in the order of 10% more instructions in a given time (in those specific mt applications) than without HT.

Sq wise this may be important. Critical listening to ht on/off on my atom setup favoured the standard two core (ht off) over the "4" core (ht on) situation though.

Increasing the count of real cores most certainly helps. I have been considering amd legacy 6 core and 8 core bulldozer for that matter but found bost cost and powerconsumption prohibitive. The same costlimitation goes for the new 6 core i7s (from 580 euro up).

The i5 system certainly feels responsive and handles all -demanding- configurations with ease (no glitches whatsoever).

Regards, Coen

Yes, I am aware that HT is not possible with i5.

Is this multi core thing only about FLAC decoding or more about SQ?

I usually play WAV for optimum SQ.

regards, Coen

So what is it about then  !

With Intel ht you don't really get more cores, its just the same cores that are loaded somewhat differently by the software (below 100% load anyway).

What more is there to gain? Track peaks are 100% load and in inbetween zero (save for some pre and after peak activity).

Regards, Coen

Well why not an i5? The performance per core does not improve with next up i7 while being much more expensive. The interesting i7s are way out of budget (actually the i5 was allready a stretch).

The ui runs smoothly and music plays with all settings (high sfs, low nos buffer). Sq apparently suffers from the usb mouse, but that is another matter to be solved.

Regards, Coen

Thanks for the reply,

Well, the interval Halves when SFS is Halved.... (from 220 to 110) iow the frequency of the peaks doubles when halving the SFS...

I guess this is ok.

I reduced the NOS driver buffer to 4 ms and see more activity on the first core.

regards, Coen

Hi all,

Last weekend I finally assembled my new pc. Amazingly everything worked from the start. What surprised me the most was that win 7-64-ult booted with the new mobo with new processor. I had the wrong setup-boot usb that didn't boot as intended, yet everything on the 'old' w7 install worked fine.

Well, almost everything, since the processorload pattern discussed in this thread is still there. That is the music is loaded with (now very brief) peaks on all cores. I did not expect this to happen since it was believed to be a result of the poor atom performance. This setup is about 10X as potent...

Sq wise the sound is very similar to my old setup, yet a tad bit less relaxed and full. I have to play with the hardware and bios settings and xx setup to get sq on par with what i am used to. Some mobo burn-in may also play a role.

I am very happy with much  improved response of xx. The pc is not completely silent yet. Processor temperature stays very low, i am considering a completely passive setup.

Regards, Coen

Very strange indeed. May it have to do with the seperate directory or does Ivo use a different de-FLAC program?

regards, Coen

Isn't this the same as "copy to XX disc first" when XX is in the C directory???

There is also a FLAC.exe in the XX directory, is this the same software?

regards, Coen

I second Robocops view.
Best balance and transparancy with the wbt nextgens. The 'ordinary' goldplated copper ones suffice, I couldn't really make out a difference for the better with the silver ones (combined with silver males). This low mass concept works really well in my system.

Note that they don't match well with Eichmann male bullets. You may have to turn the plug to connect the ground pin.

I know people who swear by the vampire connectors.

Compared to an upgrade in electronics the investment is peanuts (and lasting!), but keep in mind that the benefits are also not that exiting. Loads of very high end manufacturers still use the decent but ordinary connectors and get away with it. When coming from el cheapo pcb connectors any serious brand plug will do.

Regards, Coen

Well,

Rms value is 0.70707 x the peak value of the sine or in reverse: peak is 1.4141 times the rms. So peak-peak would equate to +1.4141 - - 1.4141 = 2.8283 times the rms. p-p is not of interest when using a dac, rms and peak are all you need. (it can be handy in designing a dac though.)

Pffew,

I think I made it !

Regards, Coen

Ok!
 i noticed a slight mistake. The peak value is of course 2X 0.70707 = 1.41414 the rms value (square root of 2).

Maybe i should try harder to quit listening to the nos1 late night  and go to bed at a decent time. Man thats hard!

Regards, Coen

I don't know what dBV is referenced to but dBU is 0.775 Volt RMS (about 1 Volt peak). I take it that the spec is incorrectly edited or has been mistyped..
dBFS is full scale, so the nominal value is 16 dB below full scale, which is 10dBV below 1dBU. Iow maximum scale is 16-10 dB = +6dBU or 2x 0.775 V RMS (x0.70707 for Peak Voltage). Peak input would then be slightly more than 2 Volts.

On the output side the dac peaks at +8 dBU or 20x log( 8 ) x 0.775 Volt Rms (x0.70707 for the peak value). Any calculator can give you the answer to this :-).

[I edited above line so the log( 8 ) doesn't turn into log(. - Peter]

Looks like a quite normal device to me.

Regards,  Coen

Hi, these messages look familiar. I didn't  notice it was the second track.

My impression is that I encounter these only at specific (flac) albums maybe even specific tracks. Sometimes my entire playlist pays without these messages. Rebooting helps.

I will keep track from now on.

Regards, Coen