ReSpeaker USB Mic Array

Feature 1: XMOS XVF3800 Upgrade With Advanced AI Audio Processing

Smarter on-board AI acoustic algorithms for better sound quality. Features AEC, multi-beamforming, de-reverberation, DoA, dynamic noise suppression, 60dB AGC, delivering stable and reliable voice capture performance.

1. AEC (Acoustic Echo Cancellation)

AEC removes acoustic echo caused when sound played from a loudspeaker is picked up again by the microphone array. AEC is critical in full-duplex communication systems such as conferencing devices, voice assistants, and interactive systems.

2. AGC (Automatic Gain Control)

AGC automatically adjusts the microphone array input level to maintain a stable and consistent audio output. AGC is essential where users may speak at varying distances and volumes. With real-time AGC, the reSpeaker XVF3800 ensures more stable downstream ASR performance.

3. NS (Noise Suppression)

Noise Suppression reduces unwanted background noise from captured audio. By identifying and attenuating non-speech components—such as fan noise, ambient chatter, keyboard typing, or environmental hum—NS enhances the SNR (signal-to-noise ratio) in real time. NS is essential in voice-driven systems including smart home voice control, conferencing devices, voice assistants, and robotics.

With far-field voice capture up to 5 meters and a circular 4-microphone array design supporting precise Direction of Arrival (DoA) detection, the reSpeaker XVF3800 delivers reliable voice capture and accurate sound source localization for interactive and voice-driven applications.

1. Far-field Voice Capture Up to 5m

(Watch the pickup range test from 12:20)

This enables clear command recognition and interaction in larger spaces without requiring users to stand close to the device, making the reSpeaker XVF3800 ideal for smart home control, robotics, and room-scale deployments.

2. Circular 4-Microphone Array Supports 360° DoA

The circular 4-microphone array enables accurate 360° Direction of Arrival (DoA) detection, allowing the reSpeaker XVF3800 to identify where a voice is coming from. This spatial awareness enhances interaction logic, supports speaker tracking, and provides a strong foundation for advanced beamforming and multi-user scenarios.

Feature 3: Developer-Friendly

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.

1. Plug-and-Play Simplicity

Standard USB interface enables easy connection with any USB-enabled device - from SBCs like Raspberry Pi and NVIDIA Jetson to PCs running Windows, Linux, or macOS. No drivers or complex setup required.

2. I2S Interface for MCU Integration

Direct I2S support allows seamless integration with MCU platforms like XIAO Series and Arduino, enabling embedded voice applications with minimal hardware overhead.

3. Compact Design for Embedded Applications

Bottom-firing microphones and a flat PCB for easy embedding into space-constrained devices without obstruction.

4. 3.5mm Audio Interface

Provides flexible connectivity for external speakers or audio output devices, simplifying hardware design and ensuring compatibility across a wide range of embedded systems.

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

Hardware Overview

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; the device plays them back in real time—delivering a “phone-call-like” voice conversation experience.

Documents

XMOS XVF3800 v3.2.1

reSpeaker XVF3800 Flyer

reSpeaker XVF3800 Flyer(Chinese)

reSpeaker Series Flyer

reSpeaker XVF3800 3D File - Board

reSpeaker XVF3800 3D-Enclosure-Up File

reSpeaker XVF3800 3D-Enclosure-Down File

Certification

Part List