ReSpeaker Lite Voice Assistant Kit

86.74 EUR

It is a smart voice assistant development kit that integrates high-performance voice processing and audio playback capabilities. The kit includes a Re

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Article Number: 1359

Information

It is a smart voice assistant development kit that integrates high-performance voice processing and audio playback capabilities. The kit includes a ReSpeaker Lite (the 2-Mic Array or the 2-Mic Array with XIAO ESP32S2 soldered on), a Mono Enclosed Speaker, and an assembleable laser-cut acrylic enclosure, specifically designed for build your smart voice assistants and home automation applications.

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 ASR Algorithms: Powered by XMOS XU-316 AI sound and audio chip, the kit includes Automatic Speech Recognition 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：The ReSpeaker Lite is compatible with Raspberry Pi, PC via USB (Audio Class 2.0 (UAC2)). It‘s also compatible with popular hardware platforms of XIAO ESP32S3 (Sense), Adafruit QT Py via I2S.
High-Quality Audio Output: Equipped with a Mono Enclosed Speaker - 4R 5W, providing clear and loud audio output, enhancing the user experience.
Acrylic Acousitc Enclosure: We offer a matte black acrylic enclosure, laser-cut with an acoustic design. This DIY assembly enclosure not only provides fun but also enhances audio performance.
Smart Home Integration: Supports integration with voice assistants like Home Assistant via ESPHome, Amazon Alexa, and Google Assistant, enabling smart home control.
Open Source Compatibility: Compatible with Arduino, PlatformIO, MicroPython, and CircuitPython, offering a flexible development environment.

Specification

General	Digital Microphones	High-Performance Digital Microphones * 2
	Sensitivity	-26 dBFS
	Acoustic Overload Point	120 dBL
	SNR	64 dBA
	Far-Field Voice Capture	Up to 3m
	Audio Output	Speaker Connector / 3.5mm Headphone Jack
	Power Supply	USB 5V, External 5V
	Dimensions	Length: 92mm Width: 42mm Height: 95mm
	Weight	200 g
Audio Processing Chip	Model	XMOS XU316
	Maximum Sampling Rate	16Khz
	Automatic Speech Recognition Algorithms	NLU, IC, AEC, NS, VNR, AGC
Processor (Optional)XIAO ESP32S3	Processor	ESP32-S3R8
	Processor	Xtensa LX7 dual-core, 32-bit processor running up to 240 MHz
	Wireless	Complete 2.4GHz WiFi subsystem
	Wireless	BLE: Bluetooth 5.0, Bluetooth mesh
	On-chip Memory	8M PSRAM & 8MB Flash
Speaker	Model	Mono Enclosed Speaker
	Rated Input Power	at 5.0W
	Rated Impedance	4ohm±15%
	Output S.P.L	88±3dB
	Distortion	10% Max
Enclosure	Model	Acrylic Enclosure for ReSpeaker Lite
	Material	Acrylic
	Color	Matte Black

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 feedback.
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

Smart Speakers and Virtual Assistants: Work with Amazon Alexa and Google Assistant to improve voice command recognition.
Audio Processing Development: Suitable for projects involving audio signal processing and analysis.
Conference Systems: Ensures clear communication during video and audio conferences.
Voice-Bsed Remote Control Cars
Keywords Spotting and Wake up
Voice Control for Home Assistant

Documents

Acrylic Enclosure for ReSpeaker Lite.dxf

Assembly instructions for Acrylic Enclosure

Product-Brief of XMOS XU316

ReSpeaker Lite - CE certifications

ReSpeaker Lite - FCC certifications

ReSpeaker Lite Voice Assistant Kit with XIAO ESP32S3 - CE certifications

ReSpeaker Lite Voice Assistant Kit with XIAO ESP32S3 - FCC certifications

Schematic diagram of ReSpeaker Lite

Part List

Must choose one	ReSpeaker Lite with XIAO ESP32S3	1
Must choose one	ReSpeaker Lite	1
Optional	Mono Enclosed Speaker - 4R 5W not included	1
Optional	Acrylic Enclosure for ReSpeaker Lite not included