Description
Note: ReSpeaker Lite does not come with a MCU for data access and transmission (eg. a XIAO ESP32S3), and it is only for audio processing with XMOS’s XU316. If you want to buy a complete Voice Assistant Kit, please visit:ReSpeaker Lite Voice Assistant Kit with XIAO ESP32S3
Features
- Dual Microphone Array for Far-Field Voice Capture: The 2 high performance digital microphones capture and extract far-field speech and voice (up to 3 meters) even in noisy environments as it cancels point noise using two microphone input.
- Onboard AI NLU Algorithms: Powered by XMOS XU-316 AI sound and audio chip, the kit includes Natural Language Understanding algorithms for Interference Cancellation (IC) , Acoustic Echo Cancellation, Noise Suppression, Voice-to-Noise Ratio (VNR), and Automatic Gain Control (AGC), enabling high quality voice capture.
- Embracing Open Source: This board is compatible with popular hardware platforms (XIAO ESP32S3 (Sense), Adafruit QT Py) via I2S, and compatible with Raspberry Pi, PC via USB (Audio Class 2.0 (UAC2)).
- Onboard RGB LED: The board features a programmable WS2812 RGB LED, supporting custom effects and offering a visual interface for your applications.
- External Power Supply Support: this board supports external 5V power supply, which can be flexibly applied in different scenarios.
- DFU for Custom Development: the board supports custom firmware update via DFU-Util.
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 |
Programmable WS2812, provides visual interface |
|
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
Reviews
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