And you don't consider local room absorption as well as having a extremely steady way of holding your head at exactly the same place.Yes, to those with good hearing.
One piece of additional furniture, curtains, open area and it's bye bye similar absorption.
In general local absorption above roughly 8kHz is rather high relatively speaking.
It's not difficult to do - https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7728126
That's around 90°. For wider a suitable dome would be needed: https://www.diyaudio.com/community/...4a-waveguide-and-purifi-6-5-aluminium.413697/
Purifi, for a commercial example, is also working on such design: https://purifi-audio.com/blog/tech-notes-1/spk16-reference-design-12
That's around 90°. For wider a suitable dome would be needed: https://www.diyaudio.com/community/...4a-waveguide-and-purifi-6-5-aluminium.413697/
Purifi, for a commercial example, is also working on such design: https://purifi-audio.com/blog/tech-notes-1/spk16-reference-design-12
Why should be head held in exactly the same place?...as well as having a extremely steady way of holding your head at exactly the same place.
MBL radialstrahler etc.
I am not taking about a omni design I mean conventional cone dome, cone horn, horn
Rob 🙂
Because as soon as you turn your head, anything above 10kHz just is gone basically.Why should be head held in exactly the same place?
If some people here are able to hear does frequencies to begin with.
How is it supposed to work? And why just head?Because as soon as you turn your head, anything above 10kHz just is gone basically.
Well unless you're headless, but that would mean you also don't have ears.How is it supposed to work? And why head?
In that case it's a non-discussion to begin with.
I'm just trying to figure out the mechanism. How can be anything above 10kHz gone if I move my head?
Well okay, maybe I shouldn't have written it as such a sarcastic joke.
What it means is that the response changes as soon as you move your head.
Because frequencies that high are quite directional to begin, as well as the absorption from your head as well as how the left and right ear interact.
Phase/delay differences etc.
It's the same way why we can hear directionality.
Again, this is far more complex and this far to simplified, but just to give a quick simple summary.
What it means is that the response changes as soon as you move your head.
Because frequencies that high are quite directional to begin, as well as the absorption from your head as well as how the left and right ear interact.
Phase/delay differences etc.
It's the same way why we can hear directionality.
Again, this is far more complex and this far to simplified, but just to give a quick simple summary.
Even the M2 waveguide does not maintain the low DI up in the high treble. To what degree this is desirable or not, is likely unknown
Yes, to those with good hearing.Above 8-10K you think it matters?
So a quick question how did we go from likely unknown to "those with good hearing"?
Rob 🙂
Importance of directivity above 8kHzSo a quick question how did we go from likely unknown to "those with good hearing"?
To me "unknown" is anything that hasn't been proven on a scientific basis. There's simply no evidence, just feelings and vague opinions, including mine.
- I believe it does make an audible difference to those able to hear it 🙂 (And it will likely have something to do with imaging.)
- I believe it does make an audible difference to those able to hear it 🙂 (And it will likely have something to do with imaging.)
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Yes exactly! There is going to be some increasing DI last octave.Importance of directivity above 8kHz
Rob 🙂
It doesn't have to increase and nobody really knows yet what it does or not if it doesn't increase.
Well in the case of human hearing, there are tons and tons of scientific literature about that subject, incl frequency absorption and changesTo me "unknown" is anything that hasn't been proven on a scientific basis. There's simply no evidence, just feelings and vague opinions, including mine.
So no opinions and beliefs there
Based on that it wouldn't make sense to make tweeters able to reach 10 kHz...
Call it evidence-based high fidelity 🙂
Call it evidence-based high fidelity 🙂
It doesn't have to increase and nobody really knows yet what it does or not if it doesn't increase.
OK all I am saying is that it typically does and it is a compromise I am willing to live with in a CD design. A gradual increase in DI last octave.
Rob 🙂
Well actually it doesn't make much senseBased on that it wouldn't make sense to make tweeters able to reach 10 kHz...
Call it evidence-based high fidelity 🙂
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