[sledwards]

@sledwards,

Nice rig and great looking speakers. 

Welcome to the dark side !!!

What CPU are you running and how much CPU is used by HQPlayer ?

I hope more multi-channel DAC players get into the market.

Thanks emailtim. I am running an i913900K with no GPU.  Here is CPU usage for: DSD256, poly-sinc-gaus-xla filter, ASDM7EC-super modulator, 44.1kHz/16 bit music file and 8 channels of convolution loaded:





Steve

[emailtim]

Thanks emailtim. I am running an i913900K with no GPU.  Here is CPU usage for: DSD256, poly-sinc-gaus-xla filter, ASDM7EC-super modulator, 44.1kHz/16 bit music file and 8 channels of convolution loaded:

...

Steve

5.5.GHz, WOW !!!  Are there any other simultaneous loads on the PC other than the OS and desktop ?

If that is all HQPlayer, it appears to be doing some heavy lifting on your 13th gen i9. 

The screen grab looks like htop.  Are you running Linux ?

I wrote some of my own DSP code and tried to leverage some CUDA library optimizations.  Unfortunately the CUDA overhead to get the data in and out of GPU memory defeated any performance gains from the GPU processing for the specific algorithms I was using.

I haven't tried HQPlayer yet, but the author indicated the best gains are had with specific DAC chips that allow their final reconstruction filters to be replaced by better reconstruction filters processed upstream by more capable [CPU] silicon.

I run 8 channels @ 176.4kHz PCM, 176.4kHz 64-bit filters created and processed in [64 & 128]-bit.  Don't have much DSD content so it gets converted to PCM.

[rinzzlr]

Thanks for sharing the journey with us.  After seven years of ownership this seems totally reasonable as an exploratory audio engineering project. It's great that you took speakers you obviously enjoy and worked to squeeze every last drop out of them. I've heard of some active DSP and XO hype that sounded interesting.  Having only owned my pair of NX-Otica's for just under a year im still finding just how sensitive and revealing they are with chain changes.. even just changing the cables is noticeable let alone, DAC's, amps, tubes, caps. They seem to scale to infinity, I can only imagine having "revoice profiles" at the ready, not that I feel they need it in the slightest.  Thankfully I do not have the time to indulge my curiosity, but phenomenal project!