Feature

●Voice Accessories consists of 2 boards HAT board and 4 miclinear array boards
●ADC AC108 x2: 8 input channels (6 channels: mic recording (only the first 4 channels available), 2 channels: echo channels of playback)
●DAC AC101 x1: Output 8 channels (2 channels: Play, 6 channels: Dummy)
●Audio output: 3.5mm audio jack, speaker jack


Description

Linear Microphone Array Board
- 4 microphones in straight line
Voice Accessory HAT Board
- Audio Output (Headset, Speaker)
- Grove Connectors

Linear microphone array board and voice accessories HAT board connect with the included ribbon cable.
Voice Accessories HAT Board penetrates the female header on the bottom to the GPIO 40 pin on the Raspberry Pi.

Note:
- Supports Raspberry Pi B+/A+/2B/3B/3B+/Zero/Zero W
- Raspberry Pi is not included.


Specifications
- 2 x X-Power AC108 ADC
- 4 x high performance microphones
- 1 x X-Power AC101 DAC
- Voice output:
- 3.5mm headset audio jack
- Speaker jack
- Compatible with Raspberry Pi 40-pin headers
- Microphones: Knowles SPU0414HR5HSB
- Sensitivity: -22 dBFS (Omnidirectional)
- SNR: 59 dB


Resources
Wiki ReSpeaker 4-Mic Linear Array Kit for Raspberry Pi
http://wiki.seeedstudio.com/ReSpeaker_4-Mic_Linear_Array_Kit_for_Raspberry_Pi/