Acoustic Cameras: Why Does the Number of Microphones Matter?

More Microphones—Better Acoustic Sensitivity

Bigger is not always better, but when it comes to the number of microphones in acoustic imaging, the correct quantity is essential. This article explains you how many microphones an acoustic camera ideally has and why the number matters so much.

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This example has two signals from two leaks that can be missed if the acoustic camera’s sensitivity is not good enough. The 16.5 kHz leak signal can be detected with a system of 32 microphones and the 18.5 kHz leak signal with a system of 124 microphones.

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