|TAPIEx ActiveX Control v3.6|
The ISpeak interface enables an application to perform text synthesis operations.
To add the Text-to-Speech feature to your TAPI application, all you need to do is call the ITAPICall.ISpeak.Speak method.
|InternalTTSInterface||returns the internal reference interface of SAPI TTS module.|
|TextIsXML||Indicates that the input text will not be parsed for XML markup.|
|Speak||Speaks the contents of a text string asynchronously.|
|SpeakStop||Stops the speech operation asynchronously.|
ISpeak is compatible with Microsoft SAPI 4.0 or SAPI 5.1. [SAPI (Speech API) is the Microsoft standard interface for Speech Recognition (SR) and Text-to-Speech (TTS) engines. ]
You also need to have a TTS (Text-to-Speech) engine installed on your computer. A number of these engines are available from different vendors. Microsoft, for example, offers a freely redistributable TTS engine at Microsoft web site.