Open Source Options for Building Smart Speakers Like Google Assistant

There are several open-source devices and frameworks that can be used to create smart speakers, such as Google Assistant. Below are the main options:

Open Source Smart Speaker Projects

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1. Smart Speaker from Scratch
   • This project, available on GitHub, demonstrates how to build a smart speaker using Raspberry Pi, ReSpeaker microphone array, and speakers¹².
   • It is designed to run Amazon Alexa, Google Assistant, Mycroft, Home Assistant, and more.
   • Emphasizes an open-source approach to enhance functionality while protecting user privacy.
2. Eximus Smart Speaker
   • Utilizes ESP32-based hardware and features a design similar to the Amazon Echo Dot v3³.
   • Includes various functionalities such as microphone array, Neopixel ring, and USB-C port, allowing for customizable extensions.

Open Source Voice Assistant Frameworks

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1. SEPIA Framework
   • A cross-platform open-source voice assistant framework that allows the creation of interactive devices capable of operating fully offline⁴.
   • Easy customization and supports multiple languages.
2. Rhasspy Voice Assistant
   • A voice assistant service that operates completely offline and can integrate with Home Assistant and Node-RED⁵.
   • Allows users to define and train their own voice commands.
3. Aimybox SDK
   • An SDK that enables embedding a voice assistant into applications or devices⁶.
   • Compatible with various voice engines and supports Android and iOS platforms.

Hardware Development Kits

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1. Smart Speaker Development Kit
   • Provides a hardware solution with microphones, buttons, speakers, and a Linux-based system⁷.
   • Integrated natural language processing features, such as ChatGPT, for an intuitive user experience.

Conclusion

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The above projects and frameworks are all suitable for creating or customizing smart speakers based on open-source technology. You can utilize low-cost hardware like Raspberry Pi or development boards such as ESP32, and implement voice recognition and control functionalities through frameworks like Rhasspy or SEPIA.