SEEED RESP MIC LITE - ReSpeaker Lite, 2-Mic, Integrated AI algorithms

"The dual microphone array for far-field speech capture uses two powerful digital microphones to accurately capture speech and voices from up to 3 meters away, even in noisy environments. Point noise is effectively suppressed by using both microphones. Far-field speech detection up to 3 meters Integrated NLU algorithms for noise suppression Compatibility with open platforms (I2S, USB) programmable WS2812 RGB LED for visual effects support for external 5V power supply The microphone array is equipped with an XMOS XU-316 AI sound and audio chip, which offers a variety of algorithms for Natural Language Understanding (NLU). These include interference cancellation (IC), acoustic echo cancellation, noise reduction and automatic volume management (AGC). These technologies enable high-quality voice recording, even in challenging acoustic environments. The board's compatibility spans various hardware platforms, including XIAO ESP32S3 (Sense) and Adafruit QT Py via I2S as well as Raspberry Pi and PC via USB (Audio Class 2.0). In addition, the board features a programmable WS2812 RGB LED that enables custom visual effects and provides a versatile interface for applications. Technical specifications Core chip: XMOS XU316 Digital microphones: High-performance digital microphones * 2 Sensitivity: -26 dBFS Acoustic overload limit: 120 dBL SNR: 64 dBA Power supply: USB 5 V, external 5 V Dimensions: 35 mm x 86 mm Audio output: Speaker connection / 3.5 mm headphone socket Maximum sampling rate: 16 kHz Speakers: Supports 5 W amplifier speakers Conclusion: The dual microphone array offers a flexible and powerful solution for precise far-field voice recording, supported by advanced NLU algorithms and open platform compatibility. External links https://wiki.seeedstudio.com/reSpeaker_usb_v3/"