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What is Microphone Sensitivity?

Sensitivity describes how strongly a microphone responds to sound pressure.

In simple terms, it’s the relationship between the input (sound pressure in Pascals) and the output (voltage in millivolts).

A high-sensitivity microphone produces a bigger signal from the same sound, making it great for quiet environments. Low-sensitivity microphones handle much louder sounds without distortion, which is why they’re used in noisy places like factories or concerts. In this video, we explain what sensitivity means, how it’s expressed in mV/Pa or dB re 1V/Pa, and why it’s so important when matching microphones to your application.

Want to learn more about sound measurement terms? Visit the AcSoft Knowledge Hub, full of FAQs, how-tos, and practical insight into noise and vibration monitoring.

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