HK-DXMIC-V1.1-4 4-array directional pickup microphone module
HK-DXMIC-V1.1 is a high-performance 4-array directional microphone module,60° directional pickup beam and supports stable voice pickup up to 3 meters.
Key Highlights
- Echo cancellation
- Voice enhanced
- 60 ° directional pickup
- Beam-forming pickup
- Noise Suppression
- Auto gain control
Overview & Technical Details
Design, key features, typical applications, and core specifications.
Description
HK-DXMIC-V1.1 is a high-performance 4-array directional pickup microphone module designed for clear voice capture in complex acoustic environments. Featuring a 60° narrow directional pickup angle, an effective 3-meter voice capture range, and an integrated suite of hardware-accelerated audio algorithms, the HK-DXMIC-V1.1 delivers zero-distance audio clarity across remote communication and voice interaction applications.
Key Features
Key Features of 4-array directional pickup microphone Module
60° Directional Beam-Forming:
Concentrates acoustic capture strictly within a 60-degree forward cone, significantly attenuating side and rear environmental interference.
3-Meter Clear Pickup Distance:
Provides consistent speech intelligibility within a 3-meter radius for natural, comfortable communication.
Automatic Gain Control (AGC) :
Dynamically normalizes incoming volume within the 3m range. Automatically boosts faint or distant voices and dampens close-up speech to maintain a comfortable, constant audio level.
Noise Suppression (NS) :
Achieves up to ≤15 dB noise reduction. Filters out steady-state background noise (air conditioners, fans, equipment hums) from as close as 50 cm away, rendering background ambient noise virtually inaudible
Typical Applications
Typical Applications of 4-array directional pickup microphone Module
Video Conferencing & Huddle Rooms:
Delivers focused voice capture for table-top or display-mounted conference systems.
Smart Terminals & Kiosks:
Enables reliable voice control and interaction in outdoor/indoor self-service digital screens.
Human-Computer Interaction (HCI):
Provides clear command recognition for service robots, smart home hubs, and interactive displays.
Android-Based Hardware:
Plugs easily into Android media boards, smart TVs, and commercial displays for plug-and-play voice enhancement.
Technical Specifications
Product specifications of 4-array directional pickup microphone Module
| Microphone type | Linear equidistant directional pickup array microphone |
| Number of digital mics | 4-MIC array |
| The farthest pick-up distance | within 3 meters |
| Audio capture rate | 48KHz @16bit |
| Sensitivity | -26±1dB |
| SNR (Signal-to-Noise Ratio) | 65 dB (A) |
| AOP | ≥12 dB SPL |
| ND | ≥20dB |
| Supporting Function | Echo Cancellation (AEC) The sound of man is enhancedBeam-formingNoise SuppressionAutomatic Gain Control （TBD dB） |
| Hardware Characteristics | ≥ 60° directional sound pickupCompliant with USB Audio Class 1.0 (UAC1.0)Supports dual 4Ω 5W speaker amplifier outputsLinear 4-microphone array designCompatible with HUB-connected camera devices |
| Algorithm Features | Automatic Echo Cancellation (AEC)Beamforming (BF)Directional Pickup Sound (DPUS)Noise Suppression (NS)Automatic Gain Control (AGC) |
| Connect interface | 1×USB-5Pin-1.25mm |
| USB power supply voltage | 5V ±5% |
| Power consumption | Regular work :1W5V, 160mA (Max) |
| Structure Size | （Length）100mmx（Width）20mm |
| Structure Size | (Length) 160mm × (Width) 6mm |
