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Everything posted by austinpop

  1. austinpop

    HQ Player

    Thanks so much for the answers. This really helps my understanding. One additional question here. What does it mean when Limited = 0 but the volume knob turns red? Is that just a warning, or is it actual clipping that does not get counted in the Limited count?
  2. austinpop

    HQ Player

    @Miska A couple more areas with questions as I continue to get more familiar with HQPlayer. Clipping and volume settings: As I understood it, the reason to set volume to -3dB or lower is because during oversampling, the reconstructed values may have higher peaks than the original. Is this correct? Is there an SQ advantage to setting Min = Max? Would it be OK to set Min = -3, Max =0, and then lower volume if and when clipping actually occurs? Reason I ask is that I like the dynamics at vol = 0dB, so would like to use that, except when needed. Or is the da
  3. I compared the Planet Techs with the Finisar FTLF1324P2BTL-MC SFP back in the June time frame, and felt I liked the Planet Techs better. I've lost track since then, there appear to be some new faves after this? In any case, my motivation has dropped at this point.
  4. Part of the point of going to the Extreme is to leverage Emile’s tuning and optimizations, so I don’t see this box as a test bed for experiments like I would a DIY server! So no, I haven’t tried the JCAT Net Card Femto. One of the reasons for the minimal network penalty during local playback is that Emile has tuned the driver settings on the Ethernet adapter to achieve this. I risk losing this by going to another card. As for trying the Fiber NIC on the Extreme, yes I did compare early on and preferred my fiber further upstream. I’ve found Emile’s advice of using fiber o
  5. Network Fun with Buffaloes! My goal remains to eliminate the spaghetti on the networking path. Frankly, I don't think this is achievable yet, given my — and most people here's — experience. So my more realistic goal is to simplify this chain as much as possible. Part of this goal is to wean myself off the REF10 SE120 clock. As things stand, with my chain as shown — TLS OCXO > Cu > eR > SFP > SOtM — the SE120 is massive overkill, as its only purpose now is to reference clock the eR and sNH-10G switches. I would dearly love to sell the SE120 to offset some of my recen
  6. Not sure who audiopop is, but it's not me! I think I've already described the improvement due to the TT-7 in prior posts. It would be a major inconvenience at this point to do what you suggest, as my P5 is sold, and the P12 review unit — a review which I'm still writing! — is all packed up. The fact, that the Extreme benefitted so significantly from lower gauge power cables like the 6AWG Prince, suggests it is a device that benefits from, and delivers superior sound quality with, a power system that can deliver prodigious instantaneous current. This is also one of the k
  7. Yes, stay tuned for my network update in a few hours. It is true that with the Extreme, Emile has tuned the network OS parameters such that the impact of just the mere presence of the network on local playback is very small. Of course, this does not apply to Roon, which is very chatty on the network. This is with HQPlayer playing local files. It actually helps to quit Roon and JPlay. Still, if I'm listening to a symphony, I'll always go ahead and physically disconnect the network for the absolute best SQ.
  8. Extreme Update After a Month I promised I would not disappear, so here I am with another update. This will be in 2 sections: first, a quick update on the Extreme after about a month of arrival, and another round of switch tests, which might be more generally interesting. Extreme Update After about a month of ownership, the Extreme has continued to improve, and give me more and more enjoyment. Some thoughts: Burn-in: While SQ has continued to improve, I feel the 3 weeks of intense burn in at Taiko with Emile's load script seems to hav
  9. There's a whole spectrum of people here, using and enjoying endpoints and music servers at both ends of the price spectrum. My only point was that this is not a "how to build a PC" thread. It's a thread about listening experiences with whatever you built/tried. At any price point.
  10. Thanks for checking. That would be best done in either one of the existing DIY threads like this one: Or create a new related thread, with the focus on lowest cost.
  11. There are times I hate the Euro-centric aspect of Qobuz. The massive Qobuz-fest sale was supposed to run through Aug. 31. Well, it's still Aug 31 in the US, but the sale appears to be over, presumably because Qobuz times are all relative to Europe (France). Makes me grumpy. I had a few more albums I wanted to buy tonight. Oh well, I still gotta say — this was a great sale! Hope to see more.
  12. Excellent. Always delighted to spread the joy around! I think you want to set the Min frequency to a low number. I've always used 800 MHz. This is only to trigger the frequency monitor. The OS never actually allows the CPU down to this frequency, as the performance governor effectively pegs the CPU to the max frequency. For those who ask: but doesn't that defeat the purpose of energy efficiency and low noise from low power? No, it's just a different approach and hinges on the extremely low CPU utilization of bit-perfect playback. When a logical CPU is >99%
  13. Vladimir Jurowski is another of my favorite Mahlerian conductors.
  14. That's a good question, as there are advanced settings in some BIOSes for both C-States and P-States. I have not dipped down to this level to tweak, as it seems to be fraught with risk of shooting oneself in the foot! Maybe there are a few drops of SQ to be squeezed out of these settings, but it's not for the faint of heart, or those without a deep understanding of processor architecture. The key thing to remember with Euphony is that the scaling governor (https://wiki.archlinux.org/index.php/CPU_frequency_scaling) is set to "Performance", so essentially you're running at the max f
  15. Yes, pre-buffering is only available with Stylus, and in this case you're using LMS. Still, the SL buffers do have a very good effect as you discovered. I assume you're using ramroot on Euphony too, of course.
  16. Does your NUC7i7 endpoint have 8GB or more RAM? You can try running SL with large buffers and see what you think. On Euphony, just go into advanced settings, and enter this in the SL parameters field: -b 2097152:2097152 -a 52428800:4:: On AL, last I did this more than a year ago, I had to edit the /etc/squeezelite.conf file.
  17. austinpop

    HQ Player

    I'm trying to understand clipping. Are there any scenarios where the volume knob turns red, but the "Limited" count stays at 0? Shouldn't the red knob correspond to a non-zero count? This is with PCM to PCM, sinc-M, LNS15, 768k. HQPlayer 4 Desktop 4.60, Windows 10.
  18. Ah, that makes more sense. Your observations are interesting. It sounds like the tunings I suggested did help, but not enough to change the outcome. Do note that it’s been quite some time since I tried AL, so it’s very possible that that the improvements in AL have overtaken Euphony.
  19. My key point was to turn turbo on, and low-powered mode off, then tune the max frequency. My own finding was that it was in this mode that the LPS quality and tendency to harshness can manifest. Hence the tuning process of adjusting max frequency. Did you turn turbo on and try this? I'm not trying to convince you one way or another. Just want to make sure you're aware of my path. If you're unwilling to try it, that's your call.
  20. Ok @cat6man. Just trying to help. Clearly my point is not getting through. Good luck with with your experiments.
  21. Well, think about it. With Turbo off, your frequency is capped at 1.9GHz - the base frequency. With Turbo On, the frequency can go up to the peak of 4.2GHz (see https://ark.intel.com/content/www/us/en/ark/products/124968/intel-core-i7-8650u-processor-8m-cache-up-to-4-20-ghz.html). This region from base to peak is where the potential for better dynamics and transient coherence occur, but your PSU needs to be up to the task. Many PSUs will devolve into harshness in this range. The Max Freq control gives you a dial to find the operating point between 1.9 and 4.2 just at the onset of harshness (ov
  22. Some Euphony tunings: Do not constrain the BIOS. Leave it wide open. By this I mean, turn on Turbo boost, HT, and don't run in low power mode. Then, play with max frequency in Advanced settings, starting at the max turbo freq and stepping down in small steps until any trace of harshness is gone. With a really good PSU, you may not need to do this. This is a big contributor to transient accuracy. Apply core isolation. I'm assuming you have HT on — if not, turn it on. Try something like this: 0-1 stylus 2-3 gstp 4-7 If othe
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