MEMS Microphone Technology Diagram

How Do They Work?

At the core of a MEMS microphone is a tiny diaphragm that moves in response to sound waves. This movement changes the electrical signal, converting acoustic energy into a digital or analog signal—just like traditional microphones, but on a much smaller scale.

These mics typically include:

  • A MEMS sensor that detects sound
  • An ASIC (Application-Specific Integrated Circuit) that processes and amplifies the signal
  • A small, sealed housing that protects the components from dust, moisture, and vibration
The Instamic Pro Plus C mounted to a camera rig in a field production

In the field with the Instamic Pro Plus C

Why Use MEMS Microphones?

MEMS microphones have quickly become a go-to solution for compact, wireless, and mobile audio applications due to several key advantages:

  • Small & Lightweight: Ideal for wearables, smartphones, and stealthy audio gear
  • Low Power Consumption: Perfect for battery-powered devices
  • High Consistency: Precision manufacturing ensures tight tolerances and reliability
  • Durable: Resistant to shock, vibration, and environmental factors

Omnidirectional Capability: Excellent for capturing ambient or environmental audio

The Instamic Pro Plus C

MEMS mics are everywhere—from phones and smart speakers to action cams, hearing aids, and pro audio gear like Instamic. Their small footprint and rock-solid performance make them ideal for creators and engineers who need quality audio without bulky setups.