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  1. gregorio

    Sound Science Corner Pub

    I don’t see that as workable. You want a group of volunteers with limited time to organise and have a discussion about every problematic thread on sound science (which sooner or later is nearly all of them)? @castleofargh - In the most recent case, where the thread not only went off the rails...
  2. gregorio

    Sound Science Corner Pub

    I’m not sure you meant to post that in this thread, maybe start a new one of you want to discuss that article (or the translation). I presume it’s because @castleofargh doesn’t live on Head-Fi, is an unpaid volunteer and doesn’t monitor Head-Fi constantly. But they were the thread starters, so...
  3. gregorio

    Sound Science Corner Pub

    No problem. I gave the OP the benefit of the doubt to begin with but then he blew it up with claims of Woke Nazis and non-vaccinated Jewish Christians (or something), demonstrating the original post was just a troll prelude. G
  4. gregorio

    iPhone vs. Android via USB-C sound quality difference is huge

    “Sound Check” is Apple’s version of Replaygain, it can be found in Apple Music settings. There is also “Reduce Loud Audio” in the “Headphone Safety” section of the “Sounds & Haptics” section of main settings, which I believe does employ a limiter (compression). That is also a possibility. I...
  5. gregorio

    iPhone vs. Android via USB-C sound quality difference is huge

    As far as I’m aware, the iPhone doesn’t do any loudness compression, it just reduces the level of each track according to the loudness metadata but you say you have Sound Check switched off. And, although the moondrop DAC stores PEQ settings, it *might* use a default setting unless it is...
  6. gregorio

    iPhone vs. Android via USB-C sound quality difference is huge

    I don’t know, do you want loudness normalisation? You can turn it off if not. If it’s a profile type thing, that might be more difficult to solve if Apple doesn’t support the app but then that’s a user error effectively. G
  7. gregorio

    iPhone vs. Android via USB-C sound quality difference is huge

    It’s not easy to know what the iPhone is doing, what is being bypassed or what the moondrop phone is doing. For example, is the iPhone applying loudness normalisation (Sound Check) but the moondrop isn’t, is the moondrop sending some profile setting to the DAC that the iPhone isn’t, as bigshot...
  8. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    If -30 is not below -23 then all math is wrong and the modern world doesn’t exist. Then try reading some. Yes, students commonly watch a great deal of YouTube videos, the vast majority of which are nonsense clickbait (just like your blog) so it is somewhat shocking when they watch one that’s...
  9. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    No you are not correct, just for a change. You are not discussing “facts related to audio science”, the rest of us are but you are doing the opposite and promoting pseudoscience related to audio science and falsely calling it “facts”. No, I’ve never met or even heard of a primary school kid who...
  10. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    Indeed, I left those out. I was trying to leave a bit of a safety margin for “definitely” inaudible, to account for potential extreme conditions that almost certainly won’t exist for a consumer but I can’t say definitely can never exist. For example a potential recording where the peak level is...
  11. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    Certainly, I was just citing examples of it being quoted. I read the actual calculation of it many years prior to these articles, probably around 20 years ago at a guess, either in an audio engineering journal or a scientific paper but I don’t recall exactly. In the sense that; something that...
  12. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    TBH, I read the calculation of it many years ago but don’t recall where exactly. It’s typically quoted roughly, Eg: https://interestingengineering.com/science/quietest-room-world-sound-goes-die - “The absolute minimum sound that can be experienced in any atmosphere as theorized by...
  13. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    Brownian Motion, although in practice the lowest level is somewhat higher than the theoretical limit dictated by Brownian Motion alone because absolute sound isolation can’t be achieved. The closest is MicroSoft’s anechoic chamber, which during the early hours one morning achieved -19.5dBSPL...
  14. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    Just out of curiosity, is your only response, deflection? G
  15. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    Careful of Amir here, while I applaud his efforts to provide objective measurements and priority on ASR is typically given to science/fact rather than marketing, he has an agenda of his own regarding hi-res! We had a run-in with him here several years ago and he’s not beyond...
  16. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    I think accuracy is a long way away, evaluation of exactly what information and scientific research is valid and applicable, and then weighing it all appropriately is seemingly well beyond ML currently. Not really, that is just the very first step and only of some science. If it is, then the...
  17. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    This appears not only likely but extremely likely IMHO. It would explain why some/many of the sentences and sections in his posts are grammatically and syntactically correct while others indicate someone with a significantly poorer grasp of the English language. G
  18. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    To be fair, there was some discussion about the difference between hi-res and oversampling much earlier in the thread but I don’t recall where. Ask pretty much any “audiophile” question and you get audiophile BS answers. I hope they sort out the learning model, etc. It would be interesting to...
  19. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    We started from the position of either ignorance, “he hadn’t fully grasped the concept yet” or that he did grasp it but was deliberately trying to mislead others. Almost everything he’s posted since indicates the latter, falsehoods (including fake or misappropriated images)...
  20. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    If that is the case (that it is not 1bit DSD) then it’s not necessarily inferior to PCM. In other words, it would be just as useless as hi-res PCM as a music distribution/playback format rather than even more useless! That it’s not particularly interesting, as it has nothing to do with...
  21. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    But then you state this: Which is an obvious lie because I definitely did not acknowledge that, I acknowledged the opposite. I don’t think you could have come-up with a more obvious proof that you are lying (unless you actually explicitly admitted it). So thank you for as good a confirmation...
  22. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    Just noticed these beauties! That’s because it didn’t, it just proved that 1bit DSD is not suitable for high quality audio applications. You know, the format you think is great but isn’t! That’s funny. Obviously it’s You “playing trick”! The ADC process requires a properly functioning...
  23. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    No, thanks for yours, a perfect case of cherrypicking, confirmation bias and lack of critical thinking, unless of course you’re just lying? Thanks again, so you don’t know the difference. That’s a bit late, I stated the uses for hi-res right back near the beginning and now you’re thanking me...
  24. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    In most cases yes but sunjam keeps going on about “absolutely” correct/perfect, only exactly 0% probability of being wrong is absolutely perfect and therefore he cannot accept 0.00002% as effectively correct/perfect in practice, IE. “Perfect but not absolutely perfect”. Unfortunately, he also...
  25. gregorio

    Hope this help you to explain Hi-Res music to your CD friends

    No you are not correct, no surprise there! Don’t you think it’s absurd to be arguing in a sound science forum when you don’t even seem to know what sound science is? That’s where your critical thinking has led you is it? To answer your question, sound science is authentic but it is NOT a subject...
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