ReSpeaker Lite – USB 2-Mic Array with Onboard AI Audio Processing

ReSpeaker Lite – USB 2-Mic Array with Onboard AI Audio Processing

The ReSpeaker Lite USB 2-Mic Array is a compact yet powerful audio processing development board, powered by the cutting-edge XMOS XU316 AI sound chip. This board is purpose-built for advanced voice recognition and control, offering crystal-clear far-field speech capture—even in noisy environments. Whether you’re creating voice assistants, smart home solutions, or industrial voice-control systems, this board delivers.

Designed for flexibility, the ReSpeaker Lite is compatible with popular platforms like Seeed Studio XIAO ESP32S3 (Sense), Raspberry Pi, and Adafruit QT Py. Its onboard AI algorithms handle interference cancellation, echo suppression, and noise reduction with ease, ensuring high-quality audio input for your applications.

Key Features

• Dual Digital Microphone Array: Captures far-field speech up to 3 meters with exceptional clarity, even in noisy environments.
• XMOS XU316 AI Audio Chip: Onboard AI algorithms provide noise suppression, automatic gain control, and natural language processing.
• I2S and USB Connectivity: Seamless integration with XIAO ESP32S3 (Sense), Adafruit QT Py, Raspberry Pi, and PCs.
• RGB LED Indicator: A programmable WS2812 RGB LED adds a customizable visual interface to your projects.
• External Power Support: Flexibly use USB or 5V external power for diverse deployment scenarios.
• Custom Firmware Development: Supports DFU for firmware upgrades tailored to your needs.

Specifications

• Core Chip: XMOS XU316
• Microphones: Two high-performance digital microphones (-26 dBFS sensitivity, 120 dBL overload point, 64 dBA SNR)
• Power Supply: USB 5V or external 5V
• Dimensions: 35 x 86 mm
• Audio Output: Speaker connector / 3.5mm headphone jack
• Max Sampling Rate: 16 kHz
• Speaker Support: 5W amplifier speakers

Applications

• Far-field voice control
• Offline and local voice processing
• Custom wake-word systems
• Low-power voice offload
• Smart assistants like Alexa, Google Assistant, and beyond

What’s in the Box

• 1x ReSpeaker Lite USB 2-Mic Array
• 1x USB cable (type and length may vary)
• Documentation and support materials

Note: Accessories may vary based on supply. The board requires an external MCU (e.g., XIAO ESP32S3) for data access and transmission.