reSpeaker USB 4-Microphone Array with Case: AI-Powered XMOS XVF3800|Seeed Studio

Feature

Explore the full reSpeaker lineup. Compare specs, find your ideal fit, and catch the latest updates & community news. Check the reSpeaker Series Landing Page

Note:

The reSpeaker XVF3800 with no XIAO versions (101991441, 114993701) come with factory-installed USB audio firmware.
The reSpeaker XVF3800 with XIAO ESP32S3 versions (114993700, 114993702) come with factory-installed I2S firmware for MCU integration.
All 4 versions support DFU mode for users to switch the firmware.

Professional AI Voice Capture Powered by XMOS XVF3800

A 4-mic array for clear voice input. Built for your next AI project. Powered by AEC, beamforming, de-reverberation, DoA, noise suppression, and 60dB AGC for clear and reliable voice capture.

Feature 1: Hear You Clearly from Across the Room

Four microphones. Up to 5 m pickup. Precise Direction of Arrival (DoA) detection, with XMOS processing that prepares clearer audio for your application.

Far-field Voice Capture

Capture clear voice from up to 5 meters away, enabling reliable interaction in smart homes, robots, and conference environments.

360°

Voice Direction Detection

A circular 4-microphone array detects voice direction accurately from any angle with advanced DoA technology.

Feature 2: Clear Voice Input Needs Professional Audio Processing

Struggling with these voice interaction challenges?
- Voice recognition becomes unreliable in noisy environments?
- Audio playback causes echo and disrupts voice interaction?
- Voice input levels vary when users speak from longer or different distances?
reSpeaker XVF3800 is designed to solve these challenges with professional-grade voice front-end processing.

AEC

Acoustic Echo Cancellation

Eliminate echo during simultaneous playback and recording

Removes acoustic echo caused by speaker playback being captured by the microphone array, enabling natural full-duplex interaction for voice assistants, conferencing devices, and robots.

AGC

Automatic Gain Control

Maintain consistent voice levels across distances

Automatically adjusts input gain to keep voice output stable, improving downstream ASR performance when users speak at different distances and volumes.

NS

Noise Suppression

Enhance voice clarity in noisy environments

Suppresses unwanted background noise such as fan noise, keyboard typing, and ambient chatter, improving signal-to-noise ratio for smarter voice applications.

Developer-Friendly

Feature 3: Built for Easy Integration

With plug-and-play setup, a compact form factor for embedded scenarios, and flexible audio connectivity, reSpeaker XVF3800 enables developers to move from prototype to deployment with minimal complexity.

01 / USB

Plug-and-Play USB

Connect to compatible PCs and single-board computers, including Raspberry Pi and NVIDIA Jetson.

02 / I²S

Built for MCU integration

Use I²S to connect with supported platforms such as XIAO and Arduino.

03 / COMPACT DESIGN

Easy to embed

The flat design fits space-constrained builds. Keep the microphone inlet—the side marked with the Seeed Studio logo—facing the sound source.

04 / AUDIO

Flexible audio output

Connect compatible external audio devices through the 3.5 mm jack. Speaker not included.

Firmware and setup requirements vary by host and operating mode.

The microphone inlet is on the back of the device, beside the Seeed Studio logo. When positioning the device, make sure the inlet faces the sound source.

Feature 4: Seamless Integration for Deployment

reSpeaker XVF3800 is a go-to choice for fast building solutions that enable seamless hardware and software integration across diverse application scenarios.

With XIAO ecosystem compatibility, robotics adaptability, and streamlined Voice Agent enablement, it reduces integration complexity and shortens time-to-market.

Specification

Core Chip	XMOS XVF3800
Digital Microphones	High-performance digital microphones * 4
Sensitivity	-26 dBFS
Acoustic Overload Point	120 dBL
SNR	64 dBA
Power Supply	USB 5V, external 5V
Dimensions	102mm x 102mm x 10mm
Audio Output	Speaker Connector / 3.5mm Headphone jack
Maximum Sampling Rate	16Khz
Speaker	Supports 5W amplifier speakers.

Choose Your reSpeaker

	reSpeaker Flex	reSpeaker XVF3800	reSpeaker Lite	reSpeaker Pi HAT
Product	reSpeaker Flex XVF3800 Circular-4 reSpeaker Flex XVF3800 Linear-4 reSpeaker Flex XVF3800 Circular-4 with XIAO ESP32S3 reSpeaker Flex XVF3800 Linear-4 with XIAO ESP32S3	reSpeaker XMOS XVF3800 reSpeaker XMOS XVF3800 with XIAO ESP32S3 reSpeaker XMOS XVF3800 with Case reSpeaker XMOS XVF3800 with XIAO ESP32S3 (Case Version)	reSpeaker Lite (bare board) reSpeaker Lite with XIAO ESP32S3	reSpeaker 2-Mics Pi HAT V2.0
Mic Array Type	Circular/Linear	Circular	Linear	Linear
Mic Spacing	Circular: 44mm Linear: 33mm	66mm	70mm	/
No. of Mics	4 PDM MEMS Microphones	4 PDM MEMS Microphones	2 PDM MEMS Microphones	2 Analog Microphones
Chip	XMOS XVF3800	XMOS XVF3800	XMOS XU316	TLV320AIC3104 Audio Codec
Pickup Distance	Up to 5m	Up to 5m	Up to 3m	Up to 3m
Voice Capture	Circular: 360° Linear: 180°	360°	180°	/
AI Algorithms	AEC Noise Suppression VNR AGC DoA De-Reverberation Multi-beamforming	AEC Noise Suppression VNR AGC DoA De-Reverberation Multi-beamforming	IC EC AEC Noise Suppression VNR AGC VAD	VAD DoA
Speaker	10w	5w	5w	/
Connectivity	USB, I2S	USB, I2S	USB, I2S	I2S
LED	1 Power LED (green, solid on)	12 Programmable RGB LED	1 Programmable RGB LED	3 Programmable RGB LEDs
Compatibility	XIAO ESP32S3 Raspberry Pi Jetson PC any platform supports I2S and USB Audio	XIAO ESP32S3 Raspberry Pi Jetson PC any platform supports I2S and USB Audio	Raspberry Pi Jetson PC any platform supports I2S and USB Audio	Raspberry Pi 5 Raspberry Pi Zero Raspberry Pi 1B+/2B/3B/3B+/4B
Applications	Robotics Integration Digital Signage Educational Terminal Embedded Application	Smart Home Voice Control Robotics Integration Physical AI Voice Agent Smart Voice Assistants Smart Conference	Wireless Voice Asistants Home Assistant Integration DIY projects Prototyping Education	Raspberry Pi Compatible

Application

Smart Home Voice Control Using reSpeaker XVF3800 Microphone Array

The reSpeaker XVF3800 4-mic array with XIAO ESP32S3 can be seamlessly integrated into Home Assistant voice systems, serving as dedicated Home Assistant voice hardware for localized control and smart home automation.

Robotics Integration with reSpeaker XVF3800 for Embedded Applications

The compact design supports smooth integration into robotic platforms, with support for ROS2 to streamline system-level communication and development. 4-mic array enables 360° voice localization, voice command recognition, and noise suppression for interactive robotics, smart toys, and voice-controlled machines. Ideal choice for reliable voice interaction and human-machine communication across service, education, and industrial robotics applications.

Build Physical AI Voice Agent with reSpeaker XVF3800

Through SDK and platform compatibility, reSpeaker XVF3800 supports rapid integration with voice AI frameworks and cloud-based services, allowing devices to be quickly transformed into scalable voice agent solutions.

1. Running Agora TEN Framework on reSpeaker XVF3800

Use reSpeaker XVF3800 with XIAO ESP32S3 for audio capture and playback, and use Agora RTC to complete the real-time audio connection. The project provides a standardized configuration method (.env / property.json), supports one-click Docker deployment, dynamic token authentication, and pluggable providers (ASR/LLM/TTS can be replaced as needed).

2. Running Agora Conversational AI on reSpeaker XVF3800

Use reSpeaker XVF3800 with XIAO ESP32S3 as an edge voice AI device to establish a stable, low-latency, bidirectional audio link via Agora RTC, and directly call Agora Conversational AI Agent API v2 on the device to complete the conversational loop of ASR → LLM → TTS: the microphone array captures audio and sends it uplink; the cloud AI generates spoken replies and sends them downlink—delivering a “phone-call-like” voice conversation experience.

View more AI agent projects

3. On-Edge AI Voice Agent Using reSpeaker XVF3800 and Jetson AGX Orin

After the microphone array detects a custom wake word, reSpeaker captures a 5-second voice query and uses a local STT engine. A local Llama 3 model then processes the query, enhanced by a RAG architecture for accurate knowledge retrieval and reasoning. The final answer is generated through a local TTS engine. The solution supports deployment across multiple local environments, including NVIDIA Jetson, Raspberry Pi, x86 servers, and Linux / Windows systems.

4. Build Xiaozhi AI Voice Assistant with reSpeaker XVF3800

Using reSpeaker XVF3800 to build a compact, cloud-connected Xiaozhi voice assistant powered by large language models. With professional far-field audio capture and robust noise suppression, it transforms lightweight edge hardware into a scalable Voice Assistant.

5. Bulid You Own OpeClaw Voice AI Agent with reSpeaker XVF3800

With reSpeaker's powerful audio capture, combined with OpenClaw's flexible AI agent framework, you can easily create a voice-controlled smart assistant that can automatically understand and respond to your commands. (e.g. locate Lark groups and send interactive meeting invitation cards/Voice-based summarization and automated email delivery)

6. Build Your AI Assistant Voice Interface with MimiClaw & reSpeaker XVF3800

MimicLaw is a lightweight implementation inspired by OpenClaw. It explores how similar agent logic can run in extremely resource-constrained environments. By using reSpeaker XVF3800 as the voice interface, we can turn MimicLaw into something more tangible: a physical AI companion that lives on your desk and interacts naturally through voice.

Build Smart Voice Assistants Using reSpeaker XVF3800

Seamlessly integrates with Amazon Alexa, Google Assistant, Home Assistant, and other mainstream voice AI platforms for far-field voice control, smart home automation, and interactive voice applications.

Smart Conference Solutions Using reSpeaker XVF3800

Compatible with Microsoft Teams, Zoom, and other popular conferencing software via USB. 4-mic array supports beamforming and DoA detection to deliver clear multi-person audio pickup and real-time status feedback.

Smart Meeting Solutions Using reSpeaker and reRouter

reSpeaker 4-mic array transforms meetings into structured, actionable insights. Designed for conference rooms, reSpeaker can clearly capture voices from a distance(up to 5 meters), handle multiple speakers, and continuously record discussions. By running local recording, STT, and AI-powered summarization, the entire process happens on-device. This ensures privacy, reduces deployment complexity, and makes it ideal for long-term use in offices, meeting rooms, and interview spaces.

FAQ

What should I consider when choosing a microphone array?

When selecting a microphone array, consider: - Voice pickup requirements (e.g., far-field pickup distance, pickup direction) - Space limitations - Requirements for audio processing algorithms (e.g., noise suppression, AEC, AGC) - Compatibility with your platform (e.g., Raspberry Pi, ESPHome) reSpeaker provides a balanced solution across these aspects for many AIoT and voice AI use cases.

Can reSpeaker be used in robotics or embodied AI projects?

Yes. reSpeaker is well-suited for robotics and embodied AI applications, where voice serves as a key interaction interface. The reSpeaker microphone array series is available in various sizes and form factors, with customization options to meet the space constraints of different embedded projects. Its onboard acoustic algorithms, including advanced noise suppression, help address common challenges in robotics, such as interference from internal motors and servo noise. In particular, the reSpeaker Flex is designed specifically for robotics and embedded AI use cases. By separating the core board from the microphone array, and providing both linear and circular arrays, it provides greater flexibility for integration in space-constrained designs.

What is the difference between reSpeaker XMOS XVF3800 and other microphone arrays?

reSpeaker XVF3800 stands out with advanced built-in acoustic algorithms powered by XMOS, offering high-quality voice capture and reliable performance espacially regarding noise suppression. It is designed for demanding voice AI applications such as real-time interaction and embedded systems.

Does reSpeaker support local (offline) voice processing?

Yes. Depending on the setup, reSpeaker can be used with local voice processing pipelines, including offline wake word detection and edge AI workflows. This helps ensure low latency and better privacy compared to cloud-only solutions.

Can reSpeaker be used for voice assistant projects with Home Assistant or ESPHome?

Yes. reSpeaker (XVF3800 / Lite) devices are well-suited for voice assistant projects and are compatible with popular platforms such as Home Assistant and ESPHome. With support for XIAO ESP32S3, they can be seamlessly integrated into ESPHome-based workflows and smart home ecosystems. For applications where wake word detection, speech-to-text, and voice control are important, reSpeaker provides far-field voice pickup, noise suppression, and high-quality audio input for more reliable performance. It also supports Linux-based systems, Raspberry Pi, Jetson, and Python development, making it a flexible solution for both DIY makers and professional developers building local voice assistants.

What is the pickup range of reSpeaker microphone arrays?

reSpeaker microphone arrays series are designed for far-field voice capture, typically supporting several meters of pickup distance depending on the environment. reSpeaker XMOS XVF3800 and reSpeaker Flex supports up to 5 meters. reSpeaker Lite supports up to 3 meters. Performance may vary based on noise levels, room acoustics, and placement.

What is a microphone array and why is it better than a single microphone?

A microphone array uses multiple microphones combined with advanced acoustic algorithms such as Acoustic Echo Cancellation (AEC), Automatic Gain Control (AGC), beamforming, and noise suppression to significantly improve sound input quality. Compared to a single microphone, it delivers better far-field voice pickup, clearer speech capture, and more reliable voice recognition in real-world environments. reSpeaker devices are specifically designed to perform well in complex or noisy scenarios such as living rooms, offices, industrial spaces, and robotics applications. The reSpeaker mic array series offers both 2-mic and 4-mic models, with multiple form factors including linear and circular arrays, as well as different mic spacing options (such as 44 mm and 66 mm), allowing users to choose the best solution for their application needs.

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