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Home Automation with Speech Recognition

Discover the integration of speech recognition in home automation with this comprehensive guide. Learn how to control various devices using common communication methods such as RS-232, HTTP GET/POST, and infrared. Each method is explored, detailing their pros and cons. You will also delve into setting up Kinect for Speech Recognition, understanding speech engines, grammars, and different recognition methods. Whether you're a beginner or looking to enhance your skills, this resource will equip you with the knowledge to seamlessly control your environment through voice commands.

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Home Automation with Speech Recognition

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  1. Billy Overton2012-9-19 Home Automation with Speech Recognition

  2. Controlling Your Devices Getting back to software

  3. Common Communication Methods • RS-232 • HTTP GET/POST • Infrared • Custom

  4. RS-232 • Pros • Many devices have RS-232 control • Extremely simple • Has common libraries • Usually well documented • Cons • Uncommon Hardware • No common command set

  5. RS-232 in PowerShell http://files.support.epson.com/pdf/plhc87u/plhc87uug.pdf

  6. HTTP GET/POST • Pros • Uses pre-existing controls systems • Can be as simple as an iframe • Customizable • Cons • Usually less documented

  7. Infrared • Pros • Almost everything has a remote • Will cover all the functions a user wants • Has premade tools: (Win)LIRC • http://lirc.sourceforge.net/remotes/ • Cons • Time consuming • Hardware Dependent

  8. Custom • Pros • You can do anything you want • Cons • More hardware

  9. Speech Recognition with Kinect From voice to code

  10. Microsoft SDKs • Kinect for Windows • Microsoft Speech Platform

  11. Kinect Setup

  12. Kinect Setup

  13. Kinect Setup

  14. Speech Recognition • Speech Recognition Engines • Grammars • Recognition Results

  15. Speech Recognition Engines • There are two types • We’ll use SpeechRecognitionEngine();

  16. Grammars • Define what we are looking for • Have three methods of creation • GrammarBuilder class • SrgsGrammar class • Srgs XML file

  17. GrammarBuilder • Allows you to add items such as strings and Choices objects to build a grammar • Used to create a Grammar object

  18. GrammarBuilder Example

  19. Adding a Grammar • recognitionEngine.LoadGrammar(g)

  20. Listening for Speech • Two Methods • Synchronous • recognitionEngine.Recognize() • Returns RecognitionResult • Asynchronous • recognitionEngine.RecognizeAsync() • recognitionEngine.RecognizeAsync(mode) • Raises SpeechRecognized event

  21. RecognitionResult • Contains all data regarding one grammar match. • Most notably contains: • Result.Text • Result.Confidence

  22. Full Example

  23. Questions and Contact Information • Name: Billy Overton • Email : overtonb@goldmail.etsu.edu • IRC: logos on irc.freenode.net • Join us in the #etsuacm channel

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