va_nuke_pe wrote:If they were both gozoutas - there might be a sound cancellation issue. But one hole is the gizinda (air intake) and the other is the gozouta (where the noise comes out).
Thanks, nuke, for the new terminology.
I shall add it to my lexicon.
Is is possible that sound waves coming out of the gozinda
will cancel some of the gozouta waves.
If you were to reverse the gozouta direction and stand near the gozinda, you would still hear sound. (I would love to hear how much can be heard
from "behind" the rotors.)
But my greater concern isound cancellation occuring INSIDE the gozouta chamber where reflected waves inside that ring chamber may cancel.
I think it is a terrible design and a big mistake.
Would be interesting to know amps/dB ratio compared to other sirens.
It appears to be an efficient squirrel-cage air pump, but remember, we are creating sound waves, not pumping air.
You can't pump sound waves.
The best way to couple sound waves to the atmosphere is an exponential horn, which the Allerter gozouta still does not form.
If wrong abouthe Allerter engineering, please correct me.
I'd love to cuthe intake half of the gozouta chamber off (so that it could be reattached!) and see if the output is greater.
before -9 now -7