TWebSpeechSynthesis
TWebSpeechSynthesis is a non-visual component that allows to take advantage of the web
speech synthesis API available in all modern browsers. It allows to generate spoken text from a
string value.
Methods
| Method |
Description |
| procedure Speak(AText: string); |
Generate spoken text for string AText |
| procedure Cancel; |
Stop playing the generated spoken text |
| function GetVoices: TStrings |
Retrieve the supported voices by the device for the speech synthesis |
| function IsSpeaking: boolean |
Returns true when the component is still playing a generated spoken text |
| Function Supported: boolean |
Returns true when the device the browser is running on supports speech synthesis |
Properties
| Property |
Description |
| property Pitch: single |
Sets the pitch of the voice |
| property Rate: single |
Sets the rate of the voice |
| property Voice: string |
Sets the voice to be used for generating the spoken text |
| property Voices: TStrings |
Read-only property returning the available voices on the device |
| property Volume: single |
Sets the volume for the spoken text |
Events
| Event |
Description |
| property OnVoicesReady |
Event triggered when the list of available voices is ready. Retrieval of available voices on the device is an asynchronous process |