[RFI] Actually an AFI Question ...

[doc at kd4e.com]

Can low-frequency audio be canceled using sound?

I seem to recall someone using sound to cancel echos
in a hall to improve the acoustic qualities.

Would it be possible to detect thumpa-thumpa loud car
audio and transmit sound that would cancel that sound?

Just wondering ...

I have ruled-out a cruise missile, laser-canon,
radar-canon, and shoulder-launched missiles ...  ;-)

-- 

Thanks! & 73, KD4E
David Colburn http://kd4e.com
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