8-Microphone 360° Omnidirectional Array for Video Conferencing

8-Microphone 360° Omnidirectional Array for Video Conferencing

Product Overview

The AMM-USB8300 is an 8-element omnidirectional MEMS microphone array featuring USB 2.0 connectivity and a linear array design optimized for video conferencing, large display terminals, and Android-based systems.

Equipped with a built-in 8-channel microphone array algorithm, the AMM-USB8300 supports stereo echo cancellation, voice enhancement, beamforming, noise suppression, and automatic gain control (AGC).
It delivers clear and accurate voice pickup from 6 to 10 meters, meeting the demanding requirements of modern conference and collaboration systems.

This array supports USB Audio Class 1.0 (UAC 1.0) and USB Control debugging, and is compatible with USB cameras via HUB connection, offering seamless integration into multi-device environments.

Key Features

  • 8-microphone linear array for precise far-field pickup

  • Omnidirectional 360° sound capture, optimized for conferencing

  • Far-field pickup distance: 6–10 meters

  • Built-in DSP algorithms:

    • Acoustic Echo Cancellation (AEC)

    • Beamforming (BF)

    • Noise Suppression (NS)

    • Automatic Gain Control (AGC)

    • Voice Enhancement

  • USB 2.0 interface with 5V power supply

  • Supports USB Audio Class 1.0 and USB Control

  • Compact and slim bar-type design, ideal for smart terminals and displays

Technical Specifications

Item Description
Microphone Type Linear equidistant array microphone
Number of Microphones 8 digital microphones
Pickup Distance 6–10 m
Audio Capture 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 180° forward pickup
Supported Functions AEC, Beamforming, NS, AGC, Voice Enhancement
Hardware Features USB Audio Class 1.0, USB Control debugging, HUB camera support
Interface 1 × USB 5-pin 1.25mm (GH)
Power Supply 5V ±5% (USB powered)
Power Consumption 1W @ 5V, 160mA (max)
Mainboard Dimensions 100 × 20 mm
Microphone Board Dimensions 115 × 6 mm

Typical Applications

  • Video conferencing and telepresence systems

  • Smart display terminals

  • Android-based voice control systems

  • Education and business collaboration devices

  • Interactive kiosks and intelligent assistants

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