Book Image

Voice User Interface Projects

By : Henry Lee
Book Image

Voice User Interface Projects

By: Henry Lee

Overview of this book

From touchscreen and mouse-click, we are moving to voice- and conversation-based user interfaces. By adopting Voice User Interfaces (VUIs), you can create a more compelling and engaging experience for your users. Voice User Interface Projects teaches you how to develop voice-enabled applications for desktop, mobile, and Internet of Things (IoT) devices. This book explains in detail VUI and its importance, basic design principles of VUI, fundamentals of conversation, and the different voice-enabled applications available in the market. You will learn how to build your first voice-enabled application by utilizing DialogFlow and Alexa’s natural language processing (NLP) platform. Once you are comfortable with building voice-enabled applications, you will understand how to dynamically process and respond to the questions by using NodeJS server deployed to the cloud. You will then move on to securing NodeJS RESTful API for DialogFlow and Alexa webhooks, creating unit tests and building voice-enabled podcasts for cars. Last but not the least you will discover advanced topics such as handling sessions, creating custom intents, and extending built-in intents in order to build conversational VUIs that will help engage the users. By the end of the book, you will have grasped a thorough knowledge of how to design and develop interactive VUIs.
Table of Contents (12 chapters)

Working with built-in Intents

Building an intent to capture user requests can be a complex task because the task requires you to build utterances and slots. Luckily, Alexa provides built-in intents that you can utilize without having to do lots of upfront work. You can find many of the built-in intents at https://amzn.to/2xgf3j8. In this section, you will take advantage of AMAZON.HelpIntent, which gets triggered when the user says alexa ask henry's kitchen help me. From the server, you will be able to capture the help intent by filtering the request for req.body.request.type === 'IntentRequest' && req.body.request.intent.name === 'AMAZON.HelpIntent'. You can further enhance the help intent by adding your own utterances from the Alexa skill builder console.

  1. Open a browser and go to the Alex skill builder console at https://developer.amazon.com...