8-Element Omnidirectional Far-Field Microphone Array

8-Element Omnidirectional Far-Field Microphone Array

Product Overview

The AMM-USB2F80 is an 8-element far-field omnidirectional MEMS microphone array with beamforming, noise suppression, and echo cancellation, ideal for video conferencing and smart interaction systems.is an 8-element linear equidistant microphone array module designed for 360° far-field sound pickup with a USB 2.0 interface.
It is ideal for video conferencing systems, large interactive displays, and Android-based devices that require high-quality voice capture and intelligent noise processing.

The array integrates an advanced 8-channel bar-type microphone algorithm featuring:

  • Stereo echo cancellation (AEC)

  • Voice enhancement

  • Beamforming

  • Noise suppression (NS)

  • Automatic gain control (AGC)

With a pickup range of 6–10 meters, the AMM-USB2F80 delivers clear, accurate, and natural audio even in large or noisy environments.
Its USB-based power and audio interface allow easy installation and seamless integration into smart terminal systems.

Key Features

  • 8-microphone linear array for precise and balanced sound pickup

  • Far-field voice capture up to 10 meters

  • Built-in DSP algorithms for voice optimization:

    • Acoustic Echo Cancellation (AEC)

    • Beamforming (BF)

    • Noise Suppression (NS)

    • Automatic Gain Control (AGC)

    • Voice Enhancement

  • Supports USB Audio Class 1.0 (UAC 1.0) and USB Control debugging

  • Compatible with USB HUB camera extension

  • USB powered, compact, and easy to integrate

Technical Specifications

Item Description
Microphone Type Linear equidistant microphone array
Number of Microphones 8 digital microphones
Pickup Distance 6–10 m
Audio Sampling Rate 16 kHz / 48 kHz @ 16 bit
Sensitivity –30 dB FS
SNR (Signal-to-Noise Ratio) 64 dBA
AOP (Acoustic Overload Point) 120 dB SPL
Directivity Forward 180°
Algorithm Features AEC, Beamforming, NS, AGC, Voice Enhancement
Hardware Features USB Audio Class 1.0, USB Control debugging, HUB camera support
Connector Interface 1 × USB 5-pin 1.25mm (GH vertical mount)
Power Supply Voltage 5V ±5% (via USB)
Power Consumption 1W @ 5V, 160mA (Max)
Mainboard Dimensions 100mm × 20mm (see mechanical drawing)
Microphone Board Dimensions 115mm × 6mm (see mechanical drawing)

Typical Applications

  • Video conferencing and telepresence systems

  • Smart display and interactive terminals

  • Android-based voice control systems

  • Educational and collaboration devices

  • Multi-microphone speech recognition systems

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