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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: I know posted by EGeddes on January 27, 2006 at 09:48:00:
Hi EarlI was looking at the map you linked and thought that since it appears you only need 90 degrees in each plane, that it might be faster to take a polar of X and Y (which are very nearly symmetric).
Can you process raw TEF polar files?
(I have not tried it but I may be able to re-save each as a text file fwiw.)
If so, what bandwidth resolution do you need, how many degrees between steps did you use, how far from the speaker was the microphone, how high off the ground were you.
When we have an afternoon that’s ok I’ll set up and do some 90 degree polars.What I meant was that around a few KHz, the radiation pattern begins to become square when viewed on axis. Because of the large size of the mouth, it looses pattern control (the –6 dB angle) at the low end around 600Hz, increasing from 50 degrees to 100 degrees at about 400Hz.
In looking at the map you linked to, I am thinking the map for the SH-50 will be different looking (steeper gradient at the edges).
For example at 90 degrees off axis, the level at 500Hz is –18dB and that decreases steadily to about –30dB avg at 8 and 10KHz.
I am not sure how to interpret the map though, the outer most marked level is –22, the inner one –2 with 5 steps so each is 4dB?
Have to run,Tom
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Follow Ups
- Re: I know - tomservo 01/28/0612:35:08 01/28/06 (1)
- I can probably do it - EGeddes 12:23:55 01/29/06 (0)
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