4-Mic Dual-Directional AI Voice Separation Array – GYKH-4M-DUAL-DIR60

4-Mic Dual-Directional AI Voice Separation Array – GYKH-4M-DUAL-DIR60

The Intelligent Solution for 1-on-1 Audio Capture

The GYKH-4M-DUAL-DIR60 is a professional-grade acoustic module specifically engineered to solve the most common challenge in AI communication: A/B Role Voice Separation. Unlike traditional microphones, our dual-directional beamforming technology creates two isolated “audio tunnels,” allowing it to capture crystal-clear speech from two people facing each other while surgically suppressing background noise and cross-talk.

Designed for high-traffic service counters and dual-sided AI translation terminals, this module ensures that your AI engine receives pure, interference-free voice data for maximum recognition accuracy.

Top Professional Advantages

  • True A/B Role Separation: Independently processes and isolates voices from two opposite directions—ideal for face-to-face interactions.

  • Precision Directivity (≥60°): Focuses on the speaker while suppressing off-axis human voices by ≥12dB.

  • Split-Board Versatility: The ultra-slim mic-bar (53x6mm) is separated from the main controller (38x38mm) for seamless integration into slim device frames.

  • Hardware-Level Privacy: Dedicated physical gain dial for volume and a one-key mute button for instant privacy management.

  • Optimized for AI Engines: High-fidelity 16-bit/48KHz sampling provides the “clean” audio required by LLMs and speech-to-text engines like ChatGPT or Google Assistant.

Full Technical Specifications

1. Acoustic Performance 

Item Specification Benefit
Microphone Type Dual-Directional Independent Array Precise 1v1 voice isolation
Number of Mics 4-MIC Array (Digital) Enhanced sensitivity & sound stage
Best Pickup Distance Within 3 Meters Optimized for counters and kiosks
Directivity ≥ 60° (Default) Targeted sound zone focus
Sensitivity -26 ± 1 dB High-precision signal capture
SNR (Signal-to-Noise) 65 dB(A) Low self-noise for clear audio
AOP / Suppression ≥12 dB SPL (Off-axis) Eliminates side-interference
Noise Reduction (ND) ≥ 20 dB Superior performance in noisy halls

2. Electrical & Interface 

Item Specification Note
Audio Capture Rate 16KHz / 48KHz @16bit Industry-standard for AI engines
Interface Type 1*USB – 4PIN 1.25mm SMT Horizontal SMT for slim design
Supply Voltage USB 5V ± 5% Standard USB power
Power Consumption 0.5W (5V, 100mA Max) Low power consumption
Protocol Support UAC 1.0 Driver-free on Win/Android/Linux

Physical Dimensions

  • Main Control Board: 38mm (L) x 38mm (W)

  • Microphone Array Board: 53mm (L) x 6mm (W)

  • Note: The separate design allows for flexible internal cable routing and custom ID integration.

Integrated Algorithm Features

  • Beam-forming (BF): Real-time tracking of the primary speaker.

  • Directional Pick-Up (DPUS): Concentrates sensitivity within the designated 60° arc.

  • Noise Suppression (NS): Intelligent background ambient noise filtering.

  • Automatic Gain Control (AGC): Balances volume for consistent audio output.

Ideal Application Scenarios

  • Public Service & Finance: Bank counters, government windows, and hotel reception desks.

  • Legal & Judicial: Interrogation rooms, prison visitation, and community correction centers.

  • Smart Terminals: Dual-screen AI translators and interactive self-service kiosks.

Contact & Support

Wuxi Silicon Source Technology Co., Ltd. (SISTC)

15 years of excellence in MEMS microphone design and manufacturing.

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