nvdnkpr / voice-elements

Web Component wrapper to the Web Speech API, that allows you to do voice recognition and speech synthesis using Polymer

<voice-elements>

Web Component wrapper to the Web Speech API, that allows you to do voice recognition (speech to text) and speech synthesis (text to speech) using Polymer.

Demo

Check it live!

Install

Install the component using Bower:

$ bower install voice-elements --save

Or download as ZIP.

Usage

1. Import Web Components' polyfill:

   <script src="bower_components/webcomponentsjs/webcomponents.min.js"></script>

2. Import Custom Element:

   <link rel="import" href="bower_components/voice-elements/dist/voice-player.html">
   <link rel="import" href="bower_components/voice-elements/dist/voice-recognition.html">

3. Start using it!

   <voice-player></voice-player>
   <voice-recognition></voice-recognition>

<voice-player>

Provides you a simple DOM API to do speech synthesis (text to speech).

Options

Attribute	Options	Default	Description
autoplay	boolean	false	Specifies if the audio should play when page loads.
accent	en-US, en-GB, es-ES, fr-FR, it-IT, de-DE, ja-JP, ko-KR, zh-CN	en-US	Specifies the language to be synthesized and spoken.
text	string	You are awesome	Specifies the text to be synthesized and spoken.

Methods

Method	Parameters	Returns	Description
speak()	None.	Nothing.	Triggers the voice audio to be played.
cancel()	None.	Nothing.	Triggers the voice audio to be canceled.
pause()	None.	Nothing.	Triggers the voice audio to be paused.
resume()	None.	Nothing.	Triggers the voice audio to be resumed.

Events

Event	Description
onstart	Triggers when the voice begun to be spoken.
onend	Triggers when the voice completed to be spoken.
onerror	Triggers when the voice player detects an error.
onpause	Triggers when the voice player is resumed.
onresume	Triggers when the voice player is resumed.

<voice-recognition>

Provides you a simple DOM API to do voice recognition (speech to text).

Options

Attribute	Options	Default	Description
continuous	boolean	true	Specifies if the recognition should continue when the user pauses while speaking.
text	string		Returns the recognized text.

Methods

Method	Parameters	Returns	Description
start()	None.	Nothing.	Starts the voice recognition.
stop()	None.	Nothing.	Requests to recognition service to stop listening to more audio.
abort()	None.	Nothing.	Requests to immediately stop listening and stop recognizing.

Events

Event	Description
onstart	Triggers when the recognition begins.
onerror	Triggers when there's a recognition error.
onend	Triggers when the recognition ends.
onresult	Triggers when there's a recognition result.

Browser Support

Unfortunately, the Web Speech API still have a poor support. Check Can I Use for more information.

None ✘	Latest ✔	None ✘	None ✘	Latest ✔

Development

In order to run it locally you'll need to fetch some dependencies and a basic server setup.

1. Install Bower & Grunt:

   $ [sudo] npm install -g bower grunt-cli

2. Install local dependencies:

   $ bower install && npm install

3. To test your project, start the development server and open http://localhost:8000.

   $ grunt server

4. To build the distribution files before releasing a new version.

   $ grunt build

5. To provide a live demo, send everything to gh-pages branch.

   $ grunt deploy

Contributing

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -m 'Add some feature'
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request :D

History

For detailed changelog, check Releases.

License

MIT License © Zeno Rocha