seeed/ReSpeaker Mic Array V2.0 Far Field Microphone Array AI Intelligent Speech Recognition Development Board Acoustics -78666

Far-field voice capture
Support USB Audio Class 1.0 (UAC 1.0)
Four microphone array
12 programmable RGB LED indicators
Speech algorithms and functions
Voice activity detection
Direction detection
Beamforming
Noise suppression
Dereverb
Echo cancellation

Specification:
XVF-3000 by XMOS
4 high-performance digital microphones
Support far-field voice capture
On-chip speech algorithm
12 programmable RGB LED indicators
Microphone: ST MP34DT01TR-M
Sensitivity: -26 dBFS (omnidirectional)
Acoustic overload point: 120 dBSPL
Signal to noise ratio: 61 dB
Power: 5V DC from Micro USB
Size: 70mm (Diameter)
3.5mm audio jack output socket
Power consumption: 5V, 180mA when LED is on, 170mA when LED is on
Maximum sampling rate: 16Khz

① XMOS XVF-3000: It integrates advanced DSP algorithms including acoustic echo cancellation (AEC), beamforming, de-reverberation, noise suppression and gain control.

② Digital Microphone: MP34DT01-M is an ultra-compact, low-power, omnidirectional digital MEMS microphone with built-in capacitive sensing elements and IC interface.

③ RGB LED: Three-color RGB LED.

④ USB port: provide power and control the microphone array

⑤ 3.5mm headphone jack: output audio, we can plug active speakers or headphones into this port.

⑥ WM8960: The WM8960 is a low-power stereo codec with d-type speaker driver

Application:
USB voice capture
Smart speaker
Intelligent voice assistant system
recorder
Voice conference system
Conference communication equipment
Voice interactive robot
Car voice assistant
Other voice interface solutions