Difference between revisions of "SAPI"
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== OSX alternatives == | == OSX alternatives == | ||
| − | OSX has system wide text to speech functionality. | + | OSX has system wide text to speech functionality built in: VoiceOver. See [[LCL_Accessibility#Mac_OS_X_VoiceOver]] |
[[Category:FPC]] | [[Category:FPC]] | ||
[[Category:Lazarus]] | [[Category:Lazarus]] | ||
[[Category:Tutorials]] | [[Category:Tutorials]] | ||
Revision as of 12:48, 15 August 2012
What is it
SAPI stands for Speech Application Programming Interface, a Microsoft Windows API used to perform text-to-speech (TTS).
Use with FreePascal
Lazarus/FreePascal can use this interface to perform TTS. Source: forum post: [1]
On Windows Vista and above, you will run in trouble with the FPU interrupt mask (see [2]). The code dealing with SavedCW is meant to work around this.
uses
//... to do: what to add here?? Ludo's OLE/ActiveX library probably...
var
SavedCW: Word;
SpVoice: Variant;
begin
SpVoice := CreateOleObject('SAPI.SpVoice');
// Change FPU mask to avoid SIGSEGV
SavedCW := Get8087CW;
try
Set8087CW(SavedCW or $4);
SpVoice.Speak('hi', 0);
finally
// Restore FPU mask
Set8087CW(SavedCW);
end;
//todo: clean up objectLinux/Unix alternatives
On Linux/Unix, there are some command line Text To Speech engines, that may also offer access via APIs. An example is the festival engine.
OSX alternatives
OSX has system wide text to speech functionality built in: VoiceOver. See LCL_Accessibility#Mac_OS_X_VoiceOver
