Recent content by gregorio
-
Hope this help you to explain Hi-Res music to your CD friends
Why don’t you answer the question, do you really not know what 120dB below 90dBSPL is? If not, how can we take anything you say seriously? While waiting let’s deal with your latest BS: Why do you want to define two items, one of which hasn’t been standard practice for about 30 years and the...- gregorio
- Post #207
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
No, I am arguing that the upper limit of the sampling theorem, EG. 22.05kHz with a 44.1kHz sampling rate cannot be achieved. In practice only up to about 20kHz can be achieved, to allow roughly 2kHz for the filter’s transition band. G- gregorio
- Post #198
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Roughly 130 years of scientific/controlled testing countless thousands of subjects. In fact, the average limit for an adult human is 16kHz. The Sampling Theorem just requires a band limited signal. In practice we cannot create an absolutely perfect filter with a zero transition band. That’s why...- gregorio
- Post #196
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
If the difference is outside audibility. For example, if the only difference is in a frequency range higher than 20kHz they would be audibly identical. Yes, an audibly perfect filter (to be clear). IE. The type of fast roll-off linear phase found in almost all DACs for the last 25+ years...- gregorio
- Post #193
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Most probably they would be audibly identical. If they’re not, then the answer is almost certainly “A” (assuming a typical/optimal filter in the DAC of course). G- gregorio
- Post #184
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
I notice you failed to answer my question, what is the SPL? If you did, maybe you would understand the conditions under which 1.001 is identical to 1.000, that you are currently either ignorant of, or just deliberately lying about! If they do sound different it’s because either it’s a...- gregorio
- Post #182
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Don’t you think you should have asked that question BEFORE you posted a bunch of BS? Let me give you an obvious example: Let’s say we playback a recording at a loud but reasonable peak 90dB SPL. Then let’s say we have losses, a lack of smoothness or some other filter artefacts at -120dB. What...- gregorio
- Post #178
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Of course I didn’t but don’t let that get in the way of a lie. No I did not, I in fact stated the exact opposite but again, don’t let that stop you! Glad we got that sorted, “with simple logic” I cannot tell the difference between a concert hall and my sitting room. That’s funny! Duh, neither...- gregorio
- Post #175
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Err of course. I can tell the difference between a bunch of musicians performing in a concert venue and two speakers in my living room reproducing a “mix”. For starters, my living room is lot smaller and has fewer people in it! That’s a very strange question, is there anyone who could not tell...- gregorio
- Post #171
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
I’m sure you do know, from continuing experience! That is an oxymoron, we cannot follow your logical reasoning because it is NOT logical! That is a lie! F5 is NOT a properly designed filter, it is an emulation of no filter at all and is therefore broken/faulty, as band limiting the signal is a...- gregorio
- Post #170
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Before we proceed further you should address the refutations you’re ignoring! While waiting, I’ll answer you question though. Providing I do NOT rely on: Cherrypicking facts, a broken DAC (or a filter option that emulates one), a lack of critical thinking, pseudoscience or just outright...- gregorio
- Post #162
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
These two quotes are not absolutely true, there are (albeit “unreasonable”) conditions under which it is possible to hear the difference. One or possibly both of which is what the OP is fallaciously relying on: Playing CD (44/16) res through a filterless NOS DAC results in a bunch of spurious...- gregorio
- Post #157
- Forum: Sound Science
-
(Piezoelectric) Crystals, Hifi and Negative Ions...
I would hope no one would take any of his posts seriously. I’m still not comfortable with the potentially dangerous BS but you’re the mod, so it’s your decision. G- gregorio
- Post #57
- Forum: Sound Science
-
(Piezoelectric) Crystals, Hifi and Negative Ions...
What didn’t you understand? No BS “advice” about things you clearly do not understand that are potentially dangerous (and can void your insurance)!! Really, what is wrong with you? @castleofargh you’re not going to let this stand are you? G- gregorio
- Post #55
- Forum: Sound Science
-
Hope this help you to explain Hi-Res music to your CD friends
Did Santa Claus or the audiophile pixies delete it? Can pigs fly better than fighter jets? Is the earth flat? Hmm… Why? Don’t bother answering any of these questions (not that you usually address the refutations put to you anyway). Please stop with the nonsense lies. There is no similar...- gregorio
- Post #125
- Forum: Sound Science