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Acoustic Architecture

What is a Microphone Array?

A microphone array combines multiple acoustic sensors with digital signal processing (DSP) to achieve 360° far-field voice capture, directional beamforming, acoustic echo cancellation (AEC), and ambient noise suppression.

Multiple Microphones
Spatial Arrangement
AI Acoustic Algorithms
Circular Array Spatial Arrangement 4-Mics Multiple Microphones
AEC AGC Beamforming Noise Suppression View details
Hardware Selection & Matrix

Choose Your reSpeaker

All Products
4-Mic (XVF3800 & Flex)
2-Mic Lite Series
Voice AI Products
View Comparison Table
reSpeaker XMOS XVF3800 and Flex Series

reSpeaker XMOS XVF3800 & Flex Series

Both series are powered by the XMOS XVF3800, delivering clear far-field voice capture and advanced onboard AI audio processing. The Flex Series adds a split design and 5W amplifier, making it ideal for embodied AI applications.

✔ Up to 5m far-field voice pickup
✔ AEC / AGC / Beamforming / Noise Suppression
✔ I2S / USB connectivity
✔ 180° / 360° mic array configurations
Flex Series: Split design + 5W amplifier
XVF3800

reSpeaker XMOS XVF3800 Series

Designed for professional conference units and voice assistants. Integrated hardware DSP executes real-time AEC, DoA beamforming, and AGC up to 5 meters.

✔ 5m 360° Far-Field
✔ XMOS XVF3800 DSP
✔ Hardware AEC / DoA
✔ XIAO ESP32-S3 Support
Flex Series

reSpeaker Flex XVF3800 Modular Series

Engineered for compact robotic heads and non-standard mechanical enclosures. Separates core XMOS processor from mic arrays via flexible ribbon cables.

✔ Split Architecture
✔ Circular / Linear Array
✔ Ultra-Thin FPC Cable
✔ Ideal for Robotics
Lite Series
2-Mic · Entry Voice AI

reSpeaker Lite Series

All-in-one dual-mic solution with onboard AI noise suppression. Natively compatible with Home Assistant and ESPHome.

✔ Dual High-SNR Mics
✔ Onboard AI Algorithms
✔ Native Home Assistant
✔ USB / Pi HAT Support
reSpeaker Clip
Wearable · Open AI Recorder

Voice AI Products

Built with open SDKs and firmware, our Voice AI solutions enable flexible customization and deployment—from AI recording to sound event detection, across smart retail, security, healthcare, and more.

✔ Open Firmware / SDK

reSpeaker Spec Comparison Matrix

Detailed acoustic, hardware, and pricing comparison across all models

✕
Spec / Feature NEW
reSpeaker Clip
Wearable AI Recorder
 NEW
reSpeaker Flex
Split-Type 4-Mic
reSpeaker XVF3800
Integrated Circular 4-Mic
reSpeaker Lite
Linear 2-Mic
reSpeaker Pi HAT
For Raspberry Pi
Basic Specifications
Mic Array Type — Circular / Linear Circular Linear Linear
Mic Spacing — Circular: 44mm
Linear: 33mm		 66mm 70mm —
No. of Mics 2 PDM MEMS 4 PDM MEMS 4 PDM MEMS 2 PDM MEMS 2 Analog
Chip nRF5340 + nRF7002 XMOS XVF3800 XMOS XVF3800 XMOS XU316 TLV320AIC3104
Pickup Distance Up to 3m (conversation) Up to 5m Up to 5m Up to 3m Up to 3m
Voice Capture 360° Circular: 360°
Linear: 180°		 360° 180° —
Acoustic Algorithms & Processing
AI Algorithms Noise Suppression 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 —
LED — 1 Power LED (green) 12 Programmable RGB LED 1 Programmable RGB LED 3 Programmable RGB LEDs
Interface, Integration & Ecosystem
Connectivity Mobile APP
Wi-Fi 6, Bluetooth 2.4G		 USB, I2S USB, I2S USB, I2S I2S
Compatibility Android, iOS XIAO ESP32S3, Raspberry Pi, Jetson, PC (I2S / USB Audio) XIAO ESP32S3, Raspberry Pi, Jetson, PC (I2S / USB Audio) Raspberry Pi, Jetson, PC (I2S / USB Audio) Raspberry Pi 5 / Zero / 1B+ / 2B / 3B / 3B+ / 4B
Applications Voice AI Agent, Meeting Transcription, Smart Retail, Conversation Logging, Voice Memos, Interview Recording, Field Notes, Personal AI Assistant 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 Assistants, Home Assistant, DIY, Prototyping, Education Raspberry Pi Compatible
Swipe horizontally to view all parameters
Close Matrix ✕
Applications & Industry Solutions

reSpeaker Empowers Different Voice AI Applications

Targeted acoustic hardware architectures engineered for specific deployment environments.

Smart Home

Smart Home

Far-field capture and noise suppression for reliable wake-word spotting, with ESP32-S3 for seamless Home Assistant control.

Check reSpeaker XVF3800 ➔
Embodied AI

Embodied AI

360° pickup, DoA, and AEC for clear interaction. Split-type design fits tight chassis; 10W amp enables natural robot conversations.

Check reSpeaker Flex ➔
Sales Performance Management

Sales Performance Management

Wearable AI recorder with 18-hour battery and local storage. Capture in-store talks and turn sales conversations into customer insights.

Check reSpeaker Clip ➔
Smart Meeting

Smart Meeting

360° voice pickup, beamforming, and noise suppression for clearer conversations and smarter meeting experiences.

Check reSpeaker XVF3800 ➔
Smart Retail

Smart Retail

Place at counters or shelves for hands-free product, availability, and inventory queries — voice AI at every retail touchpoint.

Check reSpeaker XVF3800 ➔
Open Source & Developer Resources

Open to Build. Ready to Deploy.

Go beyond plug-and-play with our open-source SDK and firmware. Access the code, documentation, and development resources you need to customize your voice solution, integrate with your platform, and deploy faster——from first prototype to production.

Wiki Guide Github
Voice AI Pipeline & Architecture

How reSpeaker Empowers Voice AI

Voice Pickup
>>>
Clearer Audio
reSpeaker Microphone Array
Microphone Array Front-End

Spatial geometry combined with dedicated hardware audio DSP to perform hardware AEC, DoA, Beamforming, and NS.

>>>
↓ Feeds Clean Audio ↓
Smarter Voice AI Applications
Jetson / Raspberry Pi / Rockchip AI Agent / Cloud AI
Host & Agent Ecosystems

Receives clean audio via USB / I2S: NVIDIA Jetson, Raspberry Pi, Seeed XIAO, Home Assistant, Whisper ASR, and Cloud LLM Reasoning Agents.

Tutorials & Interactive Guides

See reSpeaker in Action

From unboxing and hands-on reviews to platform integrations, and step-by-step tutorials. See how reSpeaker fits into different voice AI applications.

Open Link

Build with the Community

Discover real-world projects built with reSpeaker. Explore creative applications, innovative integrations, and community experiments. Share your project for a chance to be featured here!

Latest News

End-to-End Reference Designs

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