O
Ole Poul Theilgaard
Acoustics expert at GRAS Sound & Vibration (Director of Global Support and Applications), a leading Danish manufacturer of measurement microphones.
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Sep 22, 2026
Episode 3 - The Future of Defense Acoustics
6:00
16:56

Nils WesterlundHOST
But if we move on to the other end of the scale or spectrum or dynamic range, maybe I should say, we can talk, we can detect blasts and gunshots, right? Right, right, right.
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6:22Ole Poul TheilgaardGUEST
uh, In a battlefield, I guess that if we have a big blast, then we will have sound levels about maybe 180 and maybe even more.
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6:39Ole Poul TheilgaardGUEST
And when there's silence in the battlefield, then we have maybe wind noise, 60 dB or lower.
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6:49Ole Poul TheilgaardGUEST
So we need actually a microphone that are able to cover this big range.
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6:58Ole Poul TheilgaardGUEST
And yeah, the microphone has a dynamic range of 120 dB, but for detecting drones, which normally has a lower sound noise level when they are flying, We need to select our microphone so it's still able to measure the high levels, but also able to measure the lower levels from the drones.
9 MINS LATER

Nils WesterlundHOST
Can you elaborate a little bit on that? What kind of tests do we do? Can we offer there?