ISpTTSEngineSite (SAPI 5.3)

Speech API 5.3
Microsoft Speech API 5.3


The ISpTTSEngineSite interface is implemented by the SAPI SpVoice object. It is used to write audio data and events. See the TTS Engine Vendor Porting Guide for more information.

The ISpTTSEngineSite interface inherits from ISpEventSink. AddEvents and GetEventInterest are included in this interface.

Methods in Vtable Order

ISpTTSEngineSite MethodsDescription
ISpEventSink inherited methods.All the methods of ISpEventSink are accessible from this interface.
GetActionsQueries the ISpVoice to determine what action(s) to perform.
WriteSends output data (normally audio) to SAPI.
GetRateRetrieves the current TTS rendering rate adjustment that should be used by the engine.
GetVolumeRetrieves the base output volume level the engine should use during synthesis.
GetSkipInfoRetrieves the number and type of items to be skipped in the text stream.
CompleteSkipNotifies the SpVoice object that the last skip request has been completed and to pass it the results.