Great post Brent
BrentEvans wrote: ↑
Wed Aug 29, 2018 10:21 am
Have you ever had your assertions tested in a double-blind scenario, as was mentioned earlier? Using the testing method you described, where you are in control of the test parameters, you are subject to confirmation bias. It would also be interesting to see an analysis of the actual frequency content you are hearing. There is a difference between natural harmonics, which ALL electromechanical reproductions have, and layering in generated harmonics. The effect would be completely different.
It's unlikely that any of us here will ever be part of a true double-blind test of any sort. Where neither the test administrators nor the testees (no, not those ones
) have any idea what the test is about. Let alone having the results be "Peer Reviewed" (I know, not mentioned)
I haven't been able to find a single piece of evidence, anywhere on the internet, that counters the 20-20,000hz that's widely accepted... Except the mention by some sources that it actually extends down further, to 16hz. This thread is the first and only I've ever heard of someone claiming the lower limit of the hearing range doesn't extend to down to 20hz.
I too think it will be interesting to see an analysis of the actual frequency content I'm hearing. Which currently I believe "is what it is". I won't be able to test it for a week or so, but I'm very anxious to see the results.
Further, if you are listening in earbuds or headphones, you are experiencing a different pressurization method than real world sound.
I'm not sure it's really fair to add or take away a value like "real world", as if to say one is better, worse, or more or less valid than the other. Perhaps a different pressurization than half, quarter, or eighth space. Even being different, if you can hear something when using one configuration that you can't hear in another configuration, the remaining conclusion is just that. Isn't it?
With both ears receiving an identical signal but being pressurized from different directions, you are certainly more apt to perceive that signal from the sheer air pressure. Experiencing that effect is not the same as hearing the frequency. If you were to produce a similar SPL at your ear from a distant point source somehow devoid of all natural harmonics and reflections, your ears would experience the sound pressure, but not the air pressure. You would perceive that very differently, and perhaps not at all, depending on the circumstances.
I completely see this point. It pretty much encompasses the spirit of what I find so intriguing about the conversation. I'll share my experience. Or maybe more accurately, how I experience my experience.
Totally unscientific at this point. There's so much room for argument and critique in this and I completely know it. But, here it is. Playing (supposed) sine waves on YouTube, through my computer and $20 earbuds, the difference between 50hz and 25hz is night and day and every step down from 50 and beyond 25 is noticeably different and lower. Others have said it too and you make the good point again, about air pressurization. Because, I get the sensation of air pressurization in my ears even down at 10hz. It's a very good point, because my mind thinks I'm hearing something. But, if I'm very honest with myself, it doesn't register as a tone. As I mentioned earlier, 16hz plays games with my mind. I feel the pulsing pressure, but the prescience of a tone forms then goes away, then forms and goes away. It's a weird sensation. Kind of like losing balance and regaining it. There's certainty, then uncertainty.
That's what my personal experience is. And, how I experience my experience. Yes, completely subject to confirmation bias. And completely unconfirmed frequency content.
I suspect viewing the results on a spectrum analyzer will answer a lot of questions. I'm completely open to being wrong here. My gut's still stubbornly adamant though.
To not be willing to test your knowledge, thereby admitting the possibility that you might be wrong, is basically the same as egotism.
I couldn't agree more. For everyone involved, from every perspective. Let's keep our minds and dialogue open.