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Zaphod Beeblebrox

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  1. It is highly unlikely Roon noise shapes at192kHz. Also you may get better results if you already have HQP and use it to resample down to 192kHz.
  2. You need not worry much about 24bit vs 32bit non noise shaped as it relates to if 32bit truncated is equivalent to 24bits, they may not always match bit for bit but they should be darn close. If you do not mind the additional storage, then 32bit may provide additional flexibility (like going direct to Mscaler via USB), letting SRC-DX truncate 32bit to 24bit will till be OK and for Roon you will have the additional resolution to work with.
  3. In both cases 64bit doubles are dequantized to 24 bit or 32 bit, without any noise shaping, there is no benifit of going with 24bits other than space saving or if your DAC does not accept 32 bits and you have to truncate anyway. I just read your post again, I misunderstood earlier. Are you going USB-> SRC-DX-DBNC->Mscaler->DBNC->DAVE? IF you are going via SRC-DX, there is no point in using 32bits as SRC-DX will truncate to 24bits.
  4. For you use case I suggest using 32bit without noise shaping. it provides additional resolution that will help both when Mscaler reduces gain and noise shapes and with Roon.
  5. If you are running windows, yes you may see a bump because the Auto (workers) is more accurate now so the heuristics use the right number of parallel threads if HT is disabled. This will be most noticeable for 1FS or 2FS input files.
  6. Thanks for allowing me to make your EQ curve available for others to use.
  7. If you have a EQ profile, do share and i will add it.
  8. Thanks for the many feedback I have received from beta testers, I have automated the process of using EQ within the gargle-blasting workflow! I just released version 2.0.42 of PGGB that now adds a PGGB-EQ tab. Please see here for the full release notes. Also refer PGGB-EQ section of the guide to know more about PGGB-EQ. PGGB-EQ is both for Room correction and Headphones. I have also added a Headphone-EQ section from where you can download PGGB-optimized headphone EQ filters for select models for use with PGGB-EQ. Since Headphone EQ is personal, YMMV applies. I plan to
  9. That is strange, the only way this can happen is if the wavpack executable is missing. We can debug this offline, please email me and let me know if you are on Windows or Mac also send me the logs. On Windows wavpack.exe must be in C:\Program Files\PGGB\application\wavpack.exe
  10. Ha yes that will explain it. ps: If you turn HT on, till I release my next version, you will be able to use all 4 cores. My next version will also have PGGB-EQ
  11. Thanks for pointing out, the API I used always provides the logical cores which I divide by two (on windows). With Hyper threading you are able to treat on physical core as two virtual cores. While this is helpful for some applications, it does not help PGGB in speeding up. But in the case of @loworbit since there is no hyperthreading, logical and physical cores are both 8 and dividing by 2 like I do on windows reduces the workers to 4. I am aware of the issue and I have already switched to a different API call on windows to detect the correct number of physical cores.
  12. PGGB counts physical cores not logical cores and the auto workers will match the physical cores.
  13. PGGB does not care if you have HT on or off, as long as you set the number of workers to the physical cores (which is the default). But, yes the performance will degrade if you use virtual cores with PGGB too as it also increases the memory pressure. Overclocking definitely helps with performance and you will get even more performance if you can bump your RAM up by 32G more. I have a silent workstation, and it will shutdown due to overheating if I overclock with PGGB running, especially when gargle-blasting DSD.
  14. PGGB-SRC + PGGB-EQ + PGGB-NS = PGGB-RT PGGB-RT incorporates three independent modules: PGGB-SRC: Samplerate conversion PGGB-EQ: Convolution engine PGGB-NS: PGGB real time digital volume control with noise shaping. PGGB-EQ can be placed before or after SRC but needs to be before PGGB-NS PGGB-NS is designed to be a transparent real-time digital volume control with noise shaping, so the gain can be adjusted interactively during playback. It uses the same noise shaping algorithms as PGGB desktop, so guarantees the same low noise floor in au
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