Description

ReSpeaker 4-Mic Array for Raspberry Pi is a 4-microphone expansion board for Raspberry Pi designed for AI and voice applications. This means that you can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on. This product does not have audio output. If this is a requirement please consider the  ReSpeaker 6-Mic Circular Array Kit For Raspberry Pi,  the speaker 4-Mic Linear Array Kit for Raspberry Pi,  or the  ReSpeaker Mic Array v2.0.

Features 

1. Battery: Exclude
2. MIC: 4 analog microphones
3. LED: 12 APA102 programable RGB LEDs, connected to SPI interface
4. Raspberry Pi 40-Pin Headers: support Raspberry Pi Zero, Raspberry Pi 1 B+, Pi 2 B, Pi 3 B, Pi 3 B+
5. AC108: highly integrated quad-channel ADC with I2S/TDM output transition
6. Software Algorithm: VAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search)
7. Grove: 2 Grove Interfaces
8. Voice Capture Distance: 3 meters radius voice capture

Package Includes:

1 x ReSpeaker 4-Mic Array for Raspberry Pi