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This project provides a step-by-step walkthrough to help you build a hands-free Alexa Voice Service (AVS) prototype in 60 minutes, using wake word engines from Sensory or KITT.AI.

Now, in addition to pushing a button to "start listening", you can now also just say the wake word "Alexa", much like the Amazon Echo. You can find step-by-step instructions to set up the hands-free prototype on Raspberry Pi, or follow the instructions to set up the push-to-talk only prototype on Linux, Mac, or Windows.

Alexa Voice Service (AVS) is Amazon’s intelligent voice recognition and natural language understanding service that allows you as a developer to voice-enable any connected device that has a microphone and speaker.

How is this different from the last Amazon Alexa Pi project? That's easy, two wake word engines are included with this project - TrulyHandsFree from Sensory and Snowboy from KITT.AI. When you're finished, you'll have a working voice-enabled AVS prototype.

• This sample app and associated projects are provided for prototyping purposes only. Included client code, including earcons (start listening, stop listening, and error sounds) SHALL NOT be used in production. For implementation and design guidance for commercial products, please see Designing for AVS.

• Alexa Voice Service Terms & Agreements

• Usage of Sensory & KITT.AI wake word engines: The wake word engines included with this project (Sensory and KITT.AI) are intended to be used for prototyping purposes only. If you are building a commercial product with either solution, please use the contact information below to enquire about commercial licensing -

  • Contact Sensory for information on TrulyHandsFree licensing.
  • Contact KITT.AI for information on SnowBoy licensing.

• IMPORTANT: The Sensory wake word engine included with this project is time-limited: code linked against it will stop working when the library expires. The library included in this repository will, at all times, have an expiration date that is at least 120 days in the future. See Sensory's GitHub page for more information on how to renew the license for non-commercial use.

You can set up this project on the following platforms. Please choose the platform you'd like to set this up on -

• Raspberry Pi, or
• Linux, or
• Mac, or
• Windows