Seeed’s ReSpeaker 4-MicsLinear Array Kit for Raspberry Pi is an extension board, aka HAT designed for Raspberry Pi. It's a linear microphone array kit, comes with four microphones and designed for AI and voice applications. That means you can build a more powerful and flexible voice product with Raspberry Pi which can integrate Amazon Alexa Voice
Service, Google Assistant, and so on.
ReSpeaker 4-Mic Linear Array Kit for Raspberry Pi consists of two boards, one is voice accessory HAT, another is four microphones linear array.
ReSpeaker 4-Mic Linear Array Kit for Raspberry Pi support 8 input & 8 output channels in Raspbian system. The first 6 input channel for microphone recording(only first 4 input channels are valid capture data), rest of 2 input channel are echo channel of playback. The first 2 output channel for playing, rest of 6 output channel are dummy.
Features
2 ADC chips and 1 DAC chip
8 input and 8 output channels
Four microphones array
Grove support
Compatible with Raspberry Pi 40-pin headers
Headset and speaker voice output
Application Ideas
Smart speaker
Intelligent voice assistant systems
Voice recorders
Voice conferencing system
Meeting communicating equipment
Voice interacting robot
Car voice assistant
Other scenarios need voice command
Technical Details
Battery | Exclude |
AD/DA Chips | 2 x X-Power AC108 ADC; 1 x X-Power AC101 DAC |
Voice Output | 3.5mm headset audio jack / Speaker jack (JST 2.0) |
Microphones | SPU0414HR5HSB |
Sensitivity | -22 dBFS (Omnidirectional) |
SNR | 59 dB |
Part List
1 x ReSpeaker Voice Accessory HAT | 1 |
1 x ReSpeaker 4-Mic Linear Array for Voice Accessory HAT | 1 |
1 x 20cm Ribbon Cable | 1 |