The Bing Speech Recognition Control
The Bing Speech Recognition Control enables a Windows 8, Windows 8.1, or Windows RT machine to convert audio speech input to written text. It does this by receiving audio data from a microphone, sending the audio data to a web service for analysis, and then returning its best interpretations of user speech as text.
Uses of speech recognition
When you embed the Bing Speech Recognition Control in an application, you control how your application interprets the text returned by the Speech Recognition Service. By linking to recognized patterns, such as e-mails addresses and URIs, you can link that text to common actions such as sending an e-mail or visiting a web site. You can also combine Speech Recognition with other services such as Bing Translator or Bing Search to translate spoken words or look up a recipe without using your hands.
Speech recognition basics
If you want to create a custom speech recognition UI, you can use the APIs in the Bing.Speech namespace without putting a SpeechRecognizerUx control on the page. Instead, you can use the methods and events of the SpeechRecognizer class with your chosen UI elements. For more information, see How to: Add the Bing Speech Recognition Control to an application with a custom UI.
End users must have Windows 8 or 8.1 or Windows RT installed to use applications that include Bing Speech Recognition. Headset microphones are recommended.
As of the April 2014 update, the following language options are supported:
de-DE – German (Germany)
en–US – English (Unites States)
en-GB – English (Great Britain)
es-ES – Spanish (Spain)
fr-FR – French (France)
it-IT – Italian (Italy)
zh-CN – Chinese (China)
Bing Speech Subscription Requirements
You can install the Bing Speech Recognition control for Windows 8 or for Windows 8.1 directly from the Visual Studio Gallery, or from the Extension Manager in Visual Studio.
To gain access to the Bing Speech Recognition Control and the web service that it depends on, you must subscribe at the The Windows Azure Data Marketplace, and then register your application. The subscription is free for the first 500,000 service calls per month.
When you are ready to publish your application, you can do so on the Marketplace. You can strong-name your application.
For more information, see How to: Register and install the Bing Speech Recognition Control.
Key API for speech recognition
The class that represents the XAML control.
Provides the means to start, stop, and monitor speech recognition in an application.
Starts a speech recognition session, which captures and interprets user speech, and then returns the results as a SpeechRecognitionResult object.
Raised when the current speech recognition session moves from one state to another.
Interrupts speech recognition and returns control to the caller. This method can be called at any point in the speech recognition process.
Contains the results of a speech recognition session.
In this section
How to: Add the Bing Speech Recognition Control to an application with the SpeechRecognizerUx class
How to: Add the Bing Speech Recognition Control to an application with a custom UI
How to: Enable a project for the Bing Speech Recognition Control
How to: Register and install the Bing Speech Recognition Control