4-Mic Array with Integrated Speaker Amplifier – 60° Directional Beamforming

Product Overview

The 4-Mic Array with Integrated Speaker Amplifier is a professional-grade 4-Channel Linear MEMS Microphone Array engineered for precision directional voice capture and intelligent audio processing.

Featuring a sophisticated 60° Directional Beamforming architecture, this module acts as a “voice spotlight,” isolating the target speaker while aggressively suppressing ambient noise and off-axis interference. It comes fully integrated with a high-performance Acoustic Suite, including advanced Echo Cancellation (AEC), Noise Suppression, and Automatic Gain Control (AGC).

Designed for seamless integration, the AMM-DP60-4 features a USB interface for plug-and-play connectivity and an onboard speaker amplifier, providing a complete audio input/output loopback. It is the definitive solution for high-clarity Human–Machine Interaction (HMI), smart digital signage, conference terminals, and interactive display systems.

• Precision 60° Directional Pickup: Linear 4-mic beamforming effectively isolates target voice while suppressing surrounding noise.

• Instant Local Wake-Word Engine: Optimized for fast, reliable voice activation with low-latency response.

• Integrated Dual 5W Amplifier: Supports Dual 4Ω 5W speaker output, providing a complete audio solution without external amp boards.

• USB UAC 1.0 & Camera HUB Support: Plug-and-play compatibility with Windows, Android, and Linux; ideal for video conferencing integration.

• Advanced Acoustic Suite:

  • AEC (Echo Cancellation): Full-duplex communication even during high-volume playback.

  • BF & DPUS: Precision directional pickup and sound source isolation.

  • NS & AGC: Noise suppression (≥20dB) and automatic gain for consistent audio levels.

  • Parameter	Specification
    Microphone Type	Linear 4-mic array with dual independent directional pickup (beamforming)
    Number of Digital Mic Channels	4-channel (4MIC) array
    Maximum Effective Pickup Distance	Up to 3 meters (optimal performance)
    Audio Capture Rate	48 kHz @ 16-bit
    Sensitivity	-26 ± 1 dB (re: 1V/Pa)
    SNR (Signal-to-Noise Ratio)	≥65 dB (A-weighted)
    AOP (Acoustic Overload Point)	120 dB SPL
    Directivity	Frontal ±60° (default); configurable
    Supported Functions	• Echo Cancellation (AEC) • Voice Enhancement (Voice Clarity) • Beamforming (Directional Sound Focusing) • Directional Pickup (Dual-channel separation) • Noise Suppression (NS) • Automatic Gain Control (AGC)
    Hardware Characteristics	• Max. 100° directional pickup coverage • USB Audio Class 1.0 (UAC 1.0) compliant • Dual 4Ω/5W speaker output support • Linear 4-mic array structure • Compatible with HUB-based camera modules
    Algorithm Features	• AEC (Acoustic Echo Cancellation) • BF (Beamforming) • DPUS (Directional Pick-Up System) • NS (Noise Suppression) • AGC (Automatic Gain Control)
    Interface Connector	1 × USB Type-A (5-pin, 1.25mm pitch, vertical mount)
    USB Power Supply Voltage	5 V ± 5%
    Power Consumption	Typical: 1 W (5 V / 160 mA max)
    Main Board Dimensions	100 mm (L) × 20 mm (W) (exact layout refer to mechanical drawing)
    Mic Array Board Dimensions	160 mm (L) × 6 mm (W) (exact layout refer to mechanical drawing)