# How do Noise-Canceling Microphones Work?

By Pro Av · Published 2023-09-28 · Updated 2026-05-19 · Professional AV on MarketScale
Canonical: https://www.marketscale.com/industries/pro-av/noise-canceling-microphones
Creator hub: Icom

> The technology that separates human voices from background noise to deliver crystal-clear radio communication

## Key points

- Icom's F7000 Series P25 radios and select IDAS models feature advanced noise-canceling microphone technology.
- The AMBE+2 vocoder separates speech from background noise, encoding only voice into binary data transmitted via FSK modulation.
- Unlike analog radios, Icom's digital approach filters out ambient noise before transmission, delivering crystal-clear audio.

Block Field

Have you ever wondered how noise-canceling microphones work? This brief product video from **Icom** provides the answer.

[Icom's](https://www.icomamerica.com/) advanced [F7000 Series](https://www.icomamerica.com/search/?query=F7000&start=0&count=10&group=2&site=TKDQPDVK&charset=utf-8) P25 radios, along with select [IDAS](https://www.icomamerica.com/lineup/land_mobile/idas/) models like the F3400D boast cutting-edge noise-canceling microphone technology. Icom achieves noise canceling through the AMBE+2 vocoder, distinguishing between speech and background noise, converting the former into a binary code transmitted via FSK (frequency-shift keying) modulation. Unlike traditional analog radios that transmit speech and noise without filtration, Icom ensures crystal-clear communication.

> Icom ensures crystal-clear communication.

For your next noise-cancelling radio, choose Icom.

Tags: F7000 Series, ICOM, Icom Americas, noise canceling radio, noise-canceling microphones

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