MRC01
Major Contributor
Harmonics work the opposite way - they are above the fundamental, not below it.Speculation: Maybe you can hear the lower frequency harmonics that come with the frequencies above 15 kHz?
Harmonics work the opposite way - they are above the fundamental, not below it.Speculation: Maybe you can hear the lower frequency harmonics that come with the frequencies above 15 kHz?
High frequencies are useful in several ways, for example having a conversation in a noisy restaurant, or more generally, distinguishing individual sounds in a noisy environment. Also for differentiating the tone quality or timbre of a fundamental tone you are hearing. For example, the highest note on a piano is C8 which is about 4200 Hz. Same for piccolo. Yet to hear whether the note is from a piano or piccolo, you need to hear the harmonics an octave higher (and more). Someone who can't hear 8 kHz will hear that 4 kHz note but won't be able to distinguish the instrument playing it.... I'm guessing I wouldn't even notice if I lost all hearing about 8-10k, even if that change happened overnight. Am I being an idiot by not seeing the value in frequencies that high?
But if you ever need it, it's there!A bit short of 65 KHz my ribbon tweeter equipped speakers are capable of.
This got me interested. I played some test tones. With my hearing aids in I can just barely hear 8 KHz. I have an app from the manufacturer with some adjustment features. With the 3 band tone control treble cranked to max I can, maybe, hear 10 KHz faintly.My hearing rolls off pretty sharply at about 2KHz. My left ear is much weaker than my right. I'm not sure about my hearing with hearing aids. I know that due to the limitations of the hardware that the theoretical limit is around 8KHz. That's not so bad if you think of it in musical terms. I'm missing a little more than an octave, assuming my right ear is responding according to capability of its hearing aid. No musical instrument can produce a fundamental tone in the frequency range I'm missing. I first noticed the hearing loss when I was about 30 and got my first hearing aids in my mid '60s.
Depends on material. I suspect you won't have any trouble hearing a difference here:16-17k @ 41. Begs the question though, is that good for anything other than hunting mosquitoes? Sounds start getting uncomfortable after 8k, and irritating as hell after 11k. When listening to a tone sweep, the sudden silence at 16k-17k was a merciful reprieve.
I'm guessing I wouldn't even notice if I lost all hearing about 8-10k, even if that change happened overnight. Am I being an idiot by not seeing the value in frequencies that high?
You're right, the difference is obvious - the lowpass version sounds muffled in comparison. Wouldn't hurt my appreciation of the music in the slightest, but you do lose something.Depends on material. I suspect you won't have any trouble hearing a difference here:
Laurence Juber / Guitar Noir / 02. Mosaic, 5 seconds at around 0:53
But admittedly, for me, in this example, the difference begins to vanish around 11k.
I can't hear a difference between the two. It's my hearing that's at fault. My roughly determined 8 KHz upper limit is coming into play.Depends on material. I suspect you won't have any trouble hearing a difference here:
Laurence Juber / Guitar Noir / 02. Mosaic, 5 seconds at around 0:53
View attachment 314635
But admittedly, for me, in this example, the difference begins to vanish around 11k.
I stand corrected.. I was thinking about the IM distortion graphs where distortion frequencies below the two frequencies that interact are visible. But these are not harmonics, indeed.Harmonics work the opposite way - they are above the fundamental, not below it.