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Angelo Campanella[_2_] Angelo Campanella[_2_] is offline

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Homebuilt active noise control for bedroom

Eeyore wrote:

Indeed. How about using two fans on half speed ?

That one works. I have found via RSS tests that a fan at half speed
produces 20 dBA less noise. Two fans will raise that by 3 dBA. Hence the
two halves vs one whole provides a 17 dBA fan noise reduction.

Angelo Campanella

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