That doesn't mean I can't contribute. Well, it took me an half an hour including taking of pictures, which was the most laborous part 🙂
- I mean, if someone wants to try such device, why not at least do it "as best" as possible...
3D overview: https://a360.co/3BR3Wee
- I mean, if someone wants to try such device, why not at least do it "as best" as possible...
3D overview: https://a360.co/3BR3Wee
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I'm considering SATH (Squared Advanced Transition Horn).
BTW, one can easily increase the vertical opening angle and have a really good horn....
BTW, one can easily increase the vertical opening angle and have a really good horn....
I considered ATH² but I'm afraid very few would get it 🙂
(And it's a real PITA to type.)
- Finally, some serious debate!
(And it's a real PITA to type.)
- Finally, some serious debate!
Just some pictures - pressure field in a transverse plane near the mouth:
(Frequencies in the upper left corner.)
(Frequencies in the upper left corner.)
10mm in front of the mouth plane (2dB step) -
(The horn outline is slightly visible behind the color plane.)
(The horn outline is slightly visible behind the color plane.)
Pressure distribution on a sphere around the horn.
Not that it would be particularly useful, I just wanted to see if I can do it 🙂
(This is 4.3 kHz)
Not that it would be particularly useful, I just wanted to see if I can do it 🙂
(This is 4.3 kHz)
Perhaps it tells some story, after all. This is the frontal hemisphere at four different frequencies.
Holy pattern flip 🙂 I've probably asked before but have you tried these bent cheek devices with symmetric narrow nominal pattern, like 50 or 60 degrees or so for both horizontal and vertical axis?
BTW, this is the above horn with 'V' and 'H' made the same (both being 'V' of the above one).
Improving the loading does make it easier to cross CD's lower without it becoming overly complicated phase wise.
It also improves distortion in the lower end a bit.
I don't know if this is really a good thing to trade off for constant directivity.
This being said - a fir filter can take care of the phase issue and at low levels the distortion is not a problem.