Thanks. No I don't, but you should be able to easily reproduce the shape anytime.
Now it would be interesting to see the horns measured in an (rounded) enclosure for how much of it is caused by the horn itself and how much by the improper termination. For example the slight widening between 2 - 5 kHz should not be there according to the infinite baffle simulation so I wonder if it is related to a particular termination.
- From these plots it seems that the time window was quite short, wasn't it. I guess that data below ~3 kHz are not very reliable.
Now it would be interesting to see the horns measured in an (rounded) enclosure for how much of it is caused by the horn itself and how much by the improper termination. For example the slight widening between 2 - 5 kHz should not be there according to the infinite baffle simulation so I wonder if it is related to a particular termination.
- From these plots it seems that the time window was quite short, wasn't it. I guess that data below ~3 kHz are not very reliable.
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Yeah, that's quite short. You can see that the truncation of the IR has still an obvious impact on FR below about 3 kHz, meaning it's not reliable there.I've used 2ms gate for polars and 1.5ms for raw plots.
That A9 seems very promising!Here you are. I requested elliptical design from Dr. Keele for direct comparison. Do you remember that black elliptical data?
How far do you have to boundaries? 4 ms gate should be easy to achieve in almost any room.
/Anton
So it's the mouth reflection and that is mainly caused by the abrupt termination in both cases. The reason why it is less pronounced on A9 might be the narrower beamwidth (i.e less energy reaching the edge).
- You would need to add some roll-back (or an enclosure) to get rid of this.
- You would need to add some roll-back (or an enclosure) to get rid of this.
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It's up to you, I don't mind
I don't know, I have no practical experience with any 2" horn. I have some 2" drivers but haven't ever really tried them.
- If you want, you can try a shallow variant of A9 (120 x 120 deg, 50 mm deep). See what you get.
I don't know, I have no practical experience with any 2" horn. I have some 2" drivers but haven't ever really tried them.
- If you want, you can try a shallow variant of A9 (120 x 120 deg, 50 mm deep). See what you get.
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That A9 seems very promising!
How far do you have to boundaries? 4 ms gate should be easy to achieve in almost any room.
/Anton
Almost, with small baby
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Impulse that goes up/down middle axis each measurement.
Aah, of course..duh
I've never seen that float with the babyface pro, but i don't use Arta.
Here's the analog loopback impulse I get ..looks perfect to me..
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