Dual independent directional pickup microphones

Product Applications: Dual Independent Directional Microphone Module (HK-SDXMIC-V1.1)
The HK-SDXMIC-V1.1 is a specialized 4-mic array module designed for precise audio capture in complex environments. Featuring dual independent directional pickup and advanced beamforming algorithms, it excels in scenarios requiring clear voice isolation and speaker separation.

The array microphone board incorporates a 4-channel microphone matrix algorithm, including algorithms for voice enhancement, beamforming, directional pickup, noise suppression, and automatic gain control. It enables bidirectional independent directional pickup and blocks human voices outside the pickup angle, perfectly meeting the pickup requirements of devices in 1v1 role-splitting scenarios.

1. Government & Public Service Counters
Application: Service halls, administrative counters, and citizen service centers.
Benefit: The ≥60° directional pickup ensures clear communication between staff and citizens while effectively suppressing background noise from busy public halls. Ideal for digital record-keeping and service quality monitoring.
2. Banking & Financial Teller Stations
Application: Bank teller windows, VIP wealth management rooms, and insurance consultation desks.
Benefit: Provides secure, high-fidelity audio recording for compliance and dispute resolution. The dual-channel design separates the teller’s voice from the customer’s, ensuring accurate transaction records.
3. Law Enforcement & Judicial Interrogation
Application: Police interrogation rooms, prison visitation areas, and community correction talk rooms.
Benefit: Critical for 1-on-1 role separation. The module isolates the officer’s questions from the suspect’s responses on separate channels, meeting strict evidentiary standards for legal proceedings.
4. Hospitality & Front Desk Operations
Application: Hotel reception desks, concierge stations, and check-in kiosks.
Benefit: Enhances guest experience by capturing clear voice commands for AI assistants or recording service interactions for training purposes, even in noisy lobby environments.
5. Real-Time Translation & Speech Recognition Devices
Application: Handheld translation devices, smart conference systems, and voice data collection terminals.
Benefit: With 48KHz/16bit audio capture and built-in noise suppression (≥20dB), it delivers clean audio input essential for high-accuracy ASR (Automatic Speech Recognition) and machine translation engines.
Key Technical Advantages for Integration
Dual Independent Channels: True speaker separation for 1v1 scenarios.
Compact Design: Main board 38x38mm + Mic board 17x6mm for easy embedding.
USB Audio Class 1.0: Plug-and-play compatibility with Windows, Linux, and Android systems.
Integrated DSP Algorithms: Built-in beamforming, AGC, and noise suppression reduce host processor load.