Four-Mic 60° Directional Beamforming Microphone Array

Four-Mic 60° Directional Beamforming Microphone Array

Overview

The AMM-DP60-4 Directional MEMS Microphone Array is a high-performance 4-channel MEMS microphone module designed for directional sound pickup and intelligent voice applications.
Featuring an integrated beamforming algorithm, the module supports advanced functions such as echo cancellation (AEC), voice enhancement, noise suppression, and automatic gain control (AGC).
It achieves focused pickup within a 60° directional range, effectively isolating target speech and suppressing surrounding noise.
With its USB interface and linear array structure, it’s an ideal solution for human–machine interaction, digital signage, conference terminals, and smart display systems.

Key Features

  • Directional pickup angle: ≥60°

  • Integrated 4-channel MEMS microphone array

  • Built-in algorithms: AEC, BF, DPUS, NS, AGC

  • Effective voice capture within 3 meters

  • Supports USB Audio Class 1.0 (UAC 1.0)

  • Compatible with camera HUB devices

  • Supports speaker amplifier output (dual 4Ω 5W)

Technical Specifications

Parameter Specification
Microphone Type Linear equidistant directional array
Number of Microphones 4-channel MEMS array
Pickup Distance Optimal within 3 meters
Audio Sampling Rate 48kHz @ 16bit
Sensitivity -26 ±1 dB
SNR (Signal-to-Noise Ratio) 65 dB(A)
AOP (Acoustic Overload Point) ≥12 dB SPL for external voice suppression
Noise Reduction ≥20 dB
Pickup Directionality ≥60° (default mode)
Power Supply 5V ±5% via USB
Power Consumption 1W (5V, 160mA Max, excluding speaker output)
Mainboard Dimensions 100mm × 20mm
Mic Board Dimensions 160mm × 6mm
Connector Interface 1×USB-5pin-1.25mm SMD
Supported Protocols USB Audio Class 1.0, USB Control Debugging

Algorithm Functions

  • AEC – Acoustic Echo Cancellation

  • BF – Beamforming for directional sound pickup

  • DPUS – Directional Pickup and Sound Isolation

  • NS – Noise Suppression for clearer voice output

  • AGC – Automatic Gain Control for consistent volume levels

Typical Applications

  • Intelligent voice control terminals

  • Human–machine interaction systems

  • Smart displays and digital signage

  • Video conferencing equipment

  • Interactive kiosks and public information systems

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