>>65617681
Works on paper (interwebs).

It would, with subsonic ammunition. But a suppressor is cheaper and easier and also greatly quiets a firearm using subsonic ammunition.

>>65617693
what if you prerecorded the gun's sound and played it back at the right time so it would work with supersonic ammo?

theoretically? yes, if you would put a second source over the exact source of the gun firing noise, it'd cancel it out
the issue is that it's impossible - even if these two were literal points (they aren't, they're volumes heh), you couldn't literally superimpose one onto another. So even on this lowest level they'd be misaligned - which would result in there being areas of no interference and a lot of constructive interference, with SOME areas of destructive interference.
also, you'd need this pressure wave from the audio to be as powerful as the explosion, which, well, i leave to your interpretation what it could be

>>65617681
Yes but you need a speaker with the same volume and responce which wouldn't be easy.
With the pressure at the muzzle going from ambient to ~8,000psi near instantly you are probably going to need a gunpower driven speak to respond fast enough.

>>65617695
That's not the problem, the problem is that the source of the crack is not from the muzzle but from the wake of the bullet. You'd have to put a line of speakers along the path of the bullet from the muzzle until it drops below the speed of sound.

>>65617681
For a typical sound, the pressure fluctuate very close to ambient pressure, so a mirrored negative pressure wave is possible to generate.
The peak pressure of a blast shockwave is many many times of the atmosphere, the low can only go as low as the vacuum (0 is negative atm from 1 atm ambient). They would not cancel out at the muzzle.

>>65617842
Great point anon.

>>65617842
Check out the big brain on anon.

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>>65617681
Why aren't these silent?

>>65617681
You have a compact speaker that can produce 140dB?

>>65617842
Could you run another gun out of sync with the first to achieve destructive interference between both shockwaves?

>>65617842
So we need a louder speaker yes?