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Seeed Studio ReSpeaker Lite USB 2-Mic Array AI Audio Processing

Seeed Studio ReSpeaker Lite USB 2-Mic Array AI Audio Processing

Electronic Components

Seeed Studio ReSpeaker Lite USB 2-Mic Array AI Audio Processing

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Original price was: $28.99.Current price is: $23.19.

SKU:

US31207189

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Powered by XMOS XU316 AI Sound & Audio Chipset, this dev board is a powerhouse for audio processing . Equipped with a dual microphone array, it’s perfect for speech recognition and voice control .

Featuring advanced onboard NLU algorithms, the XU316 delivers:

  • Interference cancellation

  • Echo cancellation

  • Noise suppression

Supports both I2S and USB connections, and is fully compatible with:

  • Seeed Studio XIAO ESP32S3 (Sense)

  • Adafruit QT Py

  • Raspberry Pi

  • PC

Features

Dual Microphone Array for Far-Field Voice Capture Capture clear voice input from up to 3 meters awayeven in noisy environments! The two high-performance digital mics work together to cancel point noise and isolate speech with precision.

Advanced Onboard Audio Algorithms Powered by the XMOS XU-316 AI Sound & Audio Chip, this board features built-in Natural Language Understanding (NLU) algorithms for:

  • Interference Cancellation (IC)

  • Acoustic Echo Cancellation

  • Noise Suppression

  • Voice-to-Noise Ratio (VNR)

  • Automatic Gain Control (AGC) All designed to deliver crisp, high-quality voice capture.

Open Source & Hardware Compatibility Seamlessly integrates with:

  • XIAO ESP32S3 (Sense)

  • Adafruit QT Py via I2S

  • Raspberry Pi & PC via USB Audio Class 2.0 (UAC2)

Onboard RGB LED Includes a programmable WS2812 RGB LEDperfect for custom lighting effects and visual feedback in your applications.

Flexible Power Options Supports external 5V power supply, making it adaptable for diverse deployment scenarios.

DFU for Custom Firmware Development Ready for developers: update firmware via DFU-Util for tailored functionality and rapid iteration.

Specification

Core Chip

XMOS XU316

Digital Microphones

High-performance digital microphones * 2

Sensitivity

-26 dBFS

Acoustic Overload Point

120 dBL

SNR

64 dBA

Power Supply

USB 5V, external 5V

Dimensions

35*86 mm

Audio Output

Speaker Connector / 3.5mm Headphone jack

Maximum Sampling Rate

16Khz

Speaker

Supports 5W amplifier speakers.

Hardware Overview

1

Dual Microphone Array

Provides high-quality audio input.

2

Power Indicator Light

Illuminates when powered on.

3

RGB Light

ProgrammableWS2812, provides visualinterface

4

Mute Indicator Light

Lights up red when the mute button is pressed.

5

USR Button

User-defined button.

6

Mute Button

Mutes audio input when pressed.

7

XIAO ESP32S3(optional)

For further development and integration.

8

XU316 Core Processor

Responsible for audio processing and transmission.

9

External Power Supply Solder Pad

Supports external 5V power supply.

10

USB Type-C Port

Used for power and data transmission.

11

Speaker Connector

For audio output. Supports 5W amplifier speakers.

12

3.5mm Headphone jack

Output audio, We can plug active speakers or Headphones into this port.

13

External power pad 1

Unused IO pins on the XIAO ESP32.

14

External power pad 2

Unused IO pins on the XU316.

15

JTAG

For debugging and programming the XU316.

Application

  • Far-Field Voice Control
  • Offline Voice Processing
  • Local Command Processing
  • Custom Wake-Up Words
  • Low Power Voice Offload
  • Industrial Voice Control
  • Voice Recognition and Control for Home Assistant,Google Assistant, Amazon Alexa and more

DocumentsProduct-Brief of XMOS XU316ReSpeaker Lite – CE certificationsReSpeaker Lite – FCC certificationsSchematic diagram of ReSpeaker Lite

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