Comment on Does noise from different nearby sources 'add up'? Or do the different sources cancel each other out? In any case, please provide a formula and an example

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TropicalDingdong@lemmy.world ⁨1⁩ ⁨week⁩ ago

Doing so outside of a controlled laboratory setting would be effectively impossible for real world noises.

Actually it happens all the time, because of reflection/ refraction from a single source. Say you’ve got a table saw running in a shop. The sound coming from the saw is a (fairly) constant oscillator.

A shop has hard surfaces and that sound will bounce all over the shop the saw is in. Because it still takes time for the sound to travel and bounce all over, there will be places where standing waves of constructive or destructive interference form. Now there is also a shit ton of other sound bouncing all over the place, so it might not be as noticeable, but standing waves/ regions of constructive/ destructive interference don’t require a lab setting.

Modern phased array antenna are effectively taking advantage of this phenomena.

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