ReSpeaker 4-Mic Linear Array Kit for Raspberry Pi

Introduction

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 the Raspbian system. The first 6 input channels for microphone recording(only first 4 input channels are valid capture data), the rest of the 2 input channels are echo channels of playback. The first 2 output channels for playing, the rest of the 6 output channels 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
• Compatible with Raspberry Pi 4

What is ReSpeaker? 

ReSpeaker is an open modular voice interface to hack things around you. Let you interact with your home appliances, your plant, your office, your internet-equipped devices, or any other things in your daily life, all by your voice. The ReSpeaker project provides hardware components and software libraries to build voice-enabled device.

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

Assembly drawing 

Technical details

Part List

ECCN/HTS

LEARN AND DOCUMENTS

Documentations

Resources

• AC101 Datasheet
• AC108 Datesheet
• Seeed-Voice Driver
• Algorithms includes DOA, VAD, NS
• Voice Engine project, provides building blocks to create voice enabled objects
• AEC
• 2D Drawing

Learn

[Wiki] ReSpeaker 4-Mic Linear Array Kit for Raspberry Pi

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