ReSpeaker USB Mic Array
An out-of-the-box voice pick-up device is the voice of the customer.
During the past year, Respeaker Mic Array V2.0 has been sold out for more than 10K units in the format of the development board.
Customers keep requesting a complete device with an enclosure, which is challenging for them to design it, considering the acoustic
principles.
And here Seeed provides the answer with ReSpeaker USB Mic Array:
An out-of-box device with a well-designed acoustic structure brings the flexibility for the customer to build in their solution.
Mold injected enclosure available, saves the time to go to the market and the mold cost.
The difference between the PCBA inside ReSpeaker USB Mic Array and Respeaker Mic Array V2.0:
Optimized power circuit
Move the audio jack and micro USB port to the backside.
Features
Far-field voice capture
Support USB Audio Class 1.0 (UAC 1.0)
Four microphones array
12 programmable RGB LED indicators
Speech algorithms and features
o Voice Activity Detection
o Direction of Arrival
o Beamforming
o Noise Suppression
o De-reverberation
o Acoustic Echo Cancellation Specification
XVF-3000 from XMOS
4 high performance digital microphones
Supports Far-field Voice Capture
Speech algorithm on-chip
12 programmable RGB LED indicators
Microphones: ST MP34DT01TR-M
Sensitivity: -26 dBFS (Omnidirectional)
Acoustic overload point: 120 dBSPL
SNR: 61 dB
Power Supply: 5V DC from Micro USB
Dimensions: 70mm (Diameter)
3.5mm Audio jack output socket
Power consumption: 5V, 180mA with led on and 170mA with led off
Max Sample Rate: 48Khz
Hardware Overview
XMOS XVF-3000: It integrates advanced DSP algorithms that include Acoustic Echo Cancellation (AEC), beamforming,
dereverberation, noise suppression and gain control.
Digital Microphone: The MP34DT01-M is an ultra-compact, lowpower, omnidirectional, digital MEMS microphone built with a
capacitive sensing element and an IC interface.
RGB LED: Three-color RGB LED.
USB Port: Provide the power and control the mic array.
3.5mm Headphone jack: Output audio, We can plug active speakers or Headphones into this port.
WM8960: The WM8960 is a low power stereo codec featuring Class D speaker drivers to provide 1 W per channel into 8 W loads.