Recording speaker-microphone ReSpeaker 4-Mic

communicationfor general purposesMEMS

Product Overview
This is the enclosed version of the ReSpeaker XVF3800 USB 4‑microphone circular array. It integrates the XMOS XVF3800 core and four digital microphones in a protective black enclosure, providing on‑device audio processing including AEC, AGC, DoA, multi‑beamforming, VAD, noise suppression and de‑reverberation for reliable 360° voice capture up to 5 m. Dual operation modes support USB and I2S interfaces for flexible integration in industrial and embedded systems.

Key Features

• XMOS XVF3800 core: advanced voice processing for clearer far‑field capture in noisy environments.
• 4‑mic circular array: 360° pickup (up to 5 m) for multi‑speaker environments.
• Comprehensive audio processing: AEC, multi‑beamforming, de‑reverberation, DoA detection, dynamic noise suppression, 60 dB AGC.
• Interfaces & compatibility: USB Audio Class and I2S; plug‑and‑play with Raspberry Pi, NVIDIA Jetson, XIAO ESP32S3, Arduino and PC.
• Enclosed protective housing: black casing for mechanical protection and controlled acoustic response.

Hardware Overview
Robust enclosed circular design with four integrated digital MEMS microphones and the XMOS XVF3800 DSP core enabling on‑board beamforming and real‑time audio processing.

Applications

• Smart voice assistants: far‑field voice capture and integration with mainstream voice platforms.
• Conference systems: USB Audio Class 2.0 compatibility for clear multi‑participant pickup and real‑time status feedback.
• Audio processing development: platform for prototyping speech recognition, signal processing and acoustic algorithms with open‑source support.
• Robotics and voice control: 360° localization, voice command recognition and noise suppression for interactive robots and control systems.
• Industrial voice control: voice command applications in noisy or complex commercial environments.

Technical specifications

• Core chip: XMOS XVF3800
• Digital microphones: 4 integrated high‑performance digital MEMS microphones
• Sensitivity: −26 dBFS
• Acoustic overload point: 120 dB SPL
• SNR: 64 dBA
• Power supply: USB 5 V; external 5 V input supported
• Dimensions: 35 × 86 mm
• Audio output: speaker connector / 3.5 mm headphone jack
• Maximum sampling rate: 16 kHz
• Speaker support: supports 5 W amplifier speakers