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Dual-microphone noise-cancelling microphone module
Product Introduction
1，USB 2.0 interface, plug and play(Plug-and-play available when the host device supports UAC (USB Audio Class) 1.0 protocol)
2，Dual microphones;
3，AI noise reduction & voice enhancement.
4，Ideal for voice calls, human-computer interaction, voice recognition, smart terminals and Android devices.
Product Specifications
- Microphone Type: Dual Analog Noise Reduction Microphone
- Microphone Quantity: 2 x AMIC
- Pickup Distance: Optimal within 5 meters (16.4 ft)
- Audio Capture Rate: 48kHz @ 16-bit
- Supported Protocol: UAC 1.0
- Sensitivity: -30 ± 2dB
- SNR (Signal-to-Noise Ratio): 75 dB(A)
- Noise Reduction Depth (ND): ≥ 20dB
- Directivity: Omnidirectional (360°)
- Supported Algorithms / Features:
- Human Voice Enhancement
- Noise Suppression
- Automatic Gain Control (AGC) – TBD dB
- HardwareCharacteristics:
- Extendable microphone cable for high structural compatibility
- Supports UAC 1.0
- Connector Interface: 1 x USB 5-pin (1.25mm pitch), Vertical SMD
- USB Power Supply: 5V ± 5%
- Power Consumption: Typical Operation: 0.2W (5V, 40mA)
- Dimensions (Mainboard): 30 mm (L) x 22.5 mm (W)
- Dimensions (Mic Board): Cable length: 10 mm
4-array directional microphone module
Product Introduction
- USB 2.0 supported, providing universally compatible, plug-and-play functionality for rapid deployment.
- Features a built-in 4-mic linear array algorithm fully equipped with Acoustic Echo Cancellation (AEC), Noise Suppression, Speech Enhancement, and Automatic Gain Control (AGC) to ensure crystal-clear audio quality
- Utilizes intelligent beamforming to capture audio within a targeted ≥60° zone with AI noise reduction
- Purpose-built to meet the high-fidelity audio requirements of modern smart ecosystems, including video conferencing systems, Human-Computer Interaction (HCI), interactive digital signage, AI avatars, and Android-based smart terminals
Product Specifications
- Microphone Type: Linear equidistant directional microphone array
- Number of Digital Mics: 4-mic array
- Pickup Distance: Optimal within 3 meters
- Sample Rate: 48kHz @ 16-bit
- Supported Protocol: UAC 1.0
- Sensitivity: -26 ± 1 dB
- Signal-to-Noise Ratio (SNR): 65 dB(A)
- Sound Pressure Level (SPL): Off-axis voice suppression ≥ 12 dB SPL
- Noise Reduction: ≥ 20 dB
- Directivity: ≥ 60°
- Supported Algorithms:
- Acoustic Echo Cancellation (AEC)
- Voice Enhancement
- Beamforming
- Directional Pickup
- Noise Suppression
- Automatic Gain Control (AGC)
- Hardware Features:
- ≥ 60° directional pickup
- Supports UAC 1.0 protocol
- Built-in speaker amplifier output (Dual 4Ω 5W)
- Linear 2-channel microphone array
- USB Hub support for camera integration
- Connector Type: 1x USB 5-pin, 1.25mm pitch (Vertical SMD)
- Operating Voltage: 5V ± 5% (USB powered)
- Power Consumption: Standard operation: ≤ 1W (5V, 160mA max.)(Excludes speaker output consumption)
- Dimensions (Mainboard): 100mm (L) x 20mm (W)
- Dimensions (Mic Board): 160mm (L) x 6mm (W)
4/8-array omnidirectional microphone module
Product Introduction
- Features a robust 4 or 8-channel linear microphone array algorithm fully equipped with AEC, Speech Enhancement, Beamforming, Noise Suppression, and AGC for crystal-clear audio.
- 6-10 Meters Extended Voice Pickup, ensuring high-fidelity communication and clarity even in large spaces.
- Supports a dedicated USB expansion interface for easy plug-and-play camera connectivity, streamlining setup and hardware integration.
- perfectly suited for Human-Computer Interaction (HCI) interfaces, smart terminals, and Android devices demanding robust noise reduction and long-range audio capture.
Product Specifications
- Microphone Type: Linear equidistant array microphone
- Number of Digital Mics: 4 or 8-mic array
- Pickup Distance: 6 – 10 meters
- Sample Rate: 48kHz @ 16-bit
- Supported Protocol: UAC 1.0
- Sensitivity: -30 dB FS
- Signal-to-Noise Ratio (SNR): 64 dB(A)
- Sound Pressure Level (SPL): 120 dB SPL
- Noise Reduction: ≥ 20 dB
- Directivity: Omnidirectional
- Supported Algorithms:
- Acoustic Echo Cancellation (AEC)
- Voice Enhancement
- Noise Suppression
- Automatic Gain Control (AGC)
- Hardware Features:
- Omnidirectional long-range pickup
- Supports USB Audio Class 1.0 (UAC 1.0)
- Built-in speaker audio output (Single 4Ω 5W)
- Supports external speaker reference loopback (for AEC)
- Linear 8-channel microphone array
- USB Hub support for camera integration
- Connector Type: 1x USB 5-pin, 1.25mm pitch (Vertical SMD)
- Operating Voltage: 5V ± 5% (USB powered)
- Power Consumption: Standard operation: ≤ 1W (5V, 160mA max.)( Excludes speaker output consumption)
- Dimensions (Mainboard): 100mm (L) x 20mm (W)
- Dimensions (Mic Board): 115mm (L) x 6mm (W)
Sound source localization microphone module
Product Introduction
- Advanced 5-Mic Circular Array Processing, integrating AEC, Speech Enhancement, Noise Suppression, and AGC for pristine audio capture.
- 360° Sound Source Localization (DOA): to instantly calculate and track the angular coordinates of human voices, enabling true 360-degree omnidirectional audio tracking.
- Simplified Integration via TTL Output: for sound source coordinates, providing a highly accessible and user-friendly interface.
- Optimized for AI & Smart Robotics: including Human-Computer Interaction (HCI) systems, intelligent robots, and diverse AI-powered smart devices.
Product Specifications
- Microphone Type: Omnidirectional circular microphone array
- Number of Digital Mics: 5-mic array
- Pickup Distance: up to 10 meters
- Sample Rate: 48kHz @ 16-bit
- Supported Protocol: UAC 1.0
- Sensitivity: -26 ± 1 dB
- Signal-to-Noise Ratio (SNR): 65 dB(A)
- Sound Pressure Level (SPL): 120 dB SPL
- Directivity: 360° Omnidirectional
- Supported Algorithms:
- Acoustic Echo Cancellation (AEC)
- Voice Enhancement
- Sound Source Localization (DOA)
- Noise Suppression
- Automatic Gain Control (AGC)
- Hardware Features:
- 360° omnidirectional audio pickup
- Supports USB Audio Class 1.0 (UAC 1.0)
- Built-in speaker audio output (4Ω 5W)
- 5-channel circular microphone array
- LED indicator for sound source direction with coordinate data output
- Connector Type: 1x USB 5-pin, 1.25mm pitch (Vertical SMD)
- Operating Voltage: 5V ± 5% (USB powered)
- Power Consumption: Standard operation: ≤ 1W (5V, 220mA max.)(Excludes speaker output consumption)
- Dimensions: Diameter 77mm
Integration standard
THE FUNNEL PRINCIPLE
Ensure casing guide hole > mic pickup hole.
Do's
- DO Align Perfectly: Ensure the microphone receiver is precisely aligned with the acoustic guide hole on your external shell.
- DO Provide Dedicated Holes: Design a separate, independent sound-receiving hole for each individual microphone in the array.
- DO Maximize Distance: Keep the speaker cavity and the microphone PCBA as far apart as physically possible (e.g., one at the top of the device, one at the bottom).
- DO Optimize Angles: Position the speaker and microphone so they face different directions. A 90-degree or 180-degree orientation is highly recommended to minimize direct sound wave interference.
- DO Add External Protection: If your application requires waterproof and dustproof capabilities, add appropriate acoustic protective meshes above the sound-receiving holes on the outer shell.
Don'ts
- DON'T Leave Air Gaps: Never leave a gap between the microphone board and the inner shell. Absolute tightness is required to prevent hollow cavity reverberation.
- DON'T Share Acoustic Cavities: Never allow speaker vibrations to transfer to the microphone board. Absolute structural isolation between the speaker cavity and mic cavity is mandatory.
- DON'T Face the Same Way: Avoid facing the speaker and the microphone in the exact same direction, as this severely compromises the echo cancellation (AEC) performance.
- DON'T Stack Boards: Never stack multiple PCBAs directly on top of one another.