The ReSpeaker XVF3800 USB 4-Mic Array is a far-field microphone board built on the XMOS XVF3800 voice processor that captures a clean, echo-free voice signal from up to 5 metres away in noisy rooms, used to build voice assistants, Home Assistant satellites, conferencing devices, robots and speech-recognition products on Raspberry Pi, NVIDIA Jetson, PCs or ESP32 microcontrollers.A professional-grade circular 4-microphone array that captures a clear voice from up to 5 metres away, even next to a playing speaker or a noisy fan. The XMOS XVF3800 processor runs echo cancellation, automatic gain, noise suppression, de-reverberation, beamforming and 360° direction-of-arrival on board, so a Raspberry Pi, Jetson or PC receives clean audio over USB with no drivers. Switch to I2S firmware to drive it from an ESP32 or XIAO for embedded voice products.What can you use it for? Home Assistant, Rhasspy, Wyoming and OpenAI or local LLM voice assistants on a Raspberry Pi Robot and kiosk voice interfaces that must hear commands while the robot's own speaker is playing Conference and telepresence devices needing acoustic echo cancellation Speech-to-text, wake-word and speaker-localisation research using 360° direction of arrival Embedded voice products on ESP32-S3 or XIAO using the I2S firmware Who is it for?Developers and product teams who need studio-grade voice capture without writing DSP code, and hobbyists building a voice assistant that actually works across a room.Compatibility USB hosts: Raspberry Pi 4/5, NVIDIA Jetson, Windows, Linux and macOS computers; appears as a standard USB audio device, no drivers Microcontrollers: XIAO ESP32-S3, ESP32 and Arduino via I2S after switching firmware with DFU mode Audio out: 3.5 mm headphone jack and a speaker connector that drives 5 W speakers such as the Mono Enclosed Speaker Software: Home Assistant, Rhasspy, Wyoming Satellite, PyAudio, ALSA, PortAudio, ROS Specifications Voice processor XMOS XVF3800 Microphones 4 × high-performance digital MEMS microphones, circular array Sensitivity −26 dBFS Acoustic overload point 120 dB SPL SNR 64 dBA On-board audio algorithms Acoustic echo cancellation (AEC), 60 dB automatic gain control (AGC), noise suppression, de-reverberation, multi-beam beamforming, 360° direction of arrival (DoA), voice activity detection (VAD) Pickup range Far-field up to 5 m Interfaces USB (plug-and-play UAC audio, factory firmware) or I2S for MCUs; DFU mode to switch firmware Audio output 3.5 mm headphone jack and speaker connector supporting 5 W amplifier speakers Sampling rate Up to 16 kHz Power USB 5 V or external 5 V Dimensions 108 × 108 × 18 mm Version USB firmware, without XIAO ESP32-S3, without case (SKU 101991441) What's in the box Default Title: 1 × ReSpeaker XVF3800 4-Mic Array board (USB firmware, no XIAO, no case)Shipping and returnsShips from our warehouse in Singapore with tracking. Parts and accessories are charged by parcel weight, the same rates everywhere: $11.99 up to 250 g, $19.99 to 500 g, $34.99 to 1 kg and $59.99 to 2 kg. Orders over $100 that stay under 500 g ship free. Standard tracked runs 5–18 business days; DHL Express (3–5 business days) is offered at checkout if you need it sooner. Within Singapore: $6, or free over $110. Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.One parcel, one shipping charge: small parts travel together, so the postage on a single 70 g servo is the same as on six of them. A 500 g parcel holds roughly six servos plus horns and cables — which is also about where an order passes $100 and ships free. If you are buying one small item, it is usually worth checking what else you will need for the same build.Frequently asked questionsDoes it work with Raspberry Pi and Home Assistant?Yes. Plug it into a USB port and it appears as a standard audio capture device, so it works with Home Assistant voice satellites, Rhasspy, Wyoming and any ALSA or PyAudio application without drivers.What is the pickup range?Far-field capture up to about 5 metres. The on-board beamforming and noise suppression keep commands intelligible at that distance in normal room noise.Can it cancel the sound from my own speaker?Yes. Acoustic echo cancellation is processed on the XVF3800 chip, so the array can listen while a speaker attached to its own output is playing music or TTS replies.Which way should the board face?The microphone ports are on the side printed with the Seeed Studio logo. Point that side toward the talker and keep it unobstructed.What is the difference between the USB and I2S versions?This version ships with USB audio firmware for computers and single-board computers. Versions bundled with a XIAO ESP32-S3 ship with I2S firmware for microcontrollers. All versions can switch firmware in DFU mode.Does it include a case or a XIAO ESP32-S3?No. This is the bare board (SKU 101991441). Cases and XIAO-bundled variants are separate products.
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