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For ReSpeaker Mic Array v2.0 is an upgraded version of ReSpeaker Mic Array v1 which based on XVSM-2000. The v2.0 developed based on XVF-3000 from for XMOS. It can be stacked (connected) right onto the top of ReSpeaker Core to significantly improve the voice interaction experience. The board integrates 4 PDM microphones to help enhance ReSpeaker's acoustic DSP performance to a much higher level.

ReSpeaker Mic Array v2.0 supports USB Audio Class 1.0(UAC 1.0) directly. All major Operating System, like Windows, macOS, Linux are compatible with UAC 1.0, so it can be runs as a sound card without ReSpeaker Core, but has speech algorithm, like far-field on those systems. ReSpeaker Mic Array v2.0 has two firmwares, one includes speech algorithms, another is just capture raw voice data for specially purpose.

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

Voice Activity Detection

Direction of Arrival

Beamforming

Noise Suppression

De-reverberation

Acoustic Echo Cancellation

Specification¶

XVF-3000 from for 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: 63 dB

Power Supply: 5V DC from Micro USB or expansion header

Dimensions: 70mm (Diameter)

3.5mm Audio jack output socket