Microsoft Speech Recognition Engine no relation speech synthesis
Technology
The Office Assistant used technology initially from Microsoft Bob and later Microsoft Agent, offering advice based on Bayesian algorithms. From Office 2000 onward, Microsoft Agent (.acs) replaced the Microsoft Bob-descended Actor (.act) format as the technology supporting the feature. Users can add other assistants to the folder where Office is installed for them to show up in the Office application, or install in the Microsoft Agent folder in System32 folder. Microsoft Agent-based characters have richer forms and colors, and are not enclosed within a boxed window. Furthermore, the Office Assistant could use the Lernout & Hauspie TruVoice Text-to-Speech Engine to provide output speech capabilities to Microsoft Agent, but it required SAPI 4.0. The Microsoft Speech Recognition Engine allowed the Office Assistant to accept speech input.
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