16-Channel Circular MEMS Microphone Array Kit with USB Audio Interface & 32-LED Direction Indicators

Product Advantages and Features

High-Precision Circular Microphone Array Design

• 16-Channel MEMS Microphone Circular Arrangement: With a diameter of 125mm, it provides 360° omnidirectional sound source capture, covering a frequency response of 20Hz–20kHz (the audible range for human ears). This makes it suitable for multi-scenario audio collection, including speech and environmental noise.
• Synchronous Sampling Technology: Ensures precise time alignment across multiple channels with an error of <1ms, meeting the real-time requirements of algorithms such as beamforming and sound source localization.

USB Sound Card Integration & Low-Latency Transmission

• Built-in USB Sound Card (ASIO Driver): Supports sampling rates of 48kHz/96kHz and 16-bit PCM format, compatible with Windows/Linux systems without requiring additional hardware.
• Plug-and-Play USB Convenience: Compared to traditional PCIe capture cards, its USB connectivity lowers deployment barriers, with latency controlled within 10ms, making it ideal for real-time processing applications.

Visual Direction Indication & Wide Dynamic Range

• 32-LED Circular Indicator: Provides real-time display of sound source direction, helping users quickly verify algorithm performance (e.g., DOA estimation, noise suppression).
• Recording Sound Pressure Level Range: 30dB SPL (whisper) to 120dB SPL (loud noise), covering complex acoustic environments such as conference rooms and industrial workshops.

Out-of-the-Box Algorithm Verification Kit

• Basic Data Acquisition Demo (Python/C++): Enables users to rapidly access raw audio streams for testing algorithms like beamforming and speaker recognition.
• Modular Design for Expansion: Supports external FPGA acceleration cards and is compatible with MATLAB/LabVIEW toolchains, reducing R&D barriers.

Typical Application Scenarios

• Acoustic Algorithm Development: Verification of beamforming, sound source localization, noise suppression, and speech enhancement algorithms.
• Smart Device Development: Sound source tracking and voice interaction for conference systems, smart homes, and security monitoring.
• Educational Experiments: A practical teaching kit for acoustics and signal processing courses in universities.
• Industrial Inspection: Audio data collection for machine condition monitoring and abnormal noise diagnosis.
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