Microsoft® Windows® CE for the Auto PC includes speech recognition and text-to-speech (TTS) technologies. These technologies enable an Auto PC to respond to user-spoken commands and provide the user verbal feedback. The voice-controlled user interface (UI) enables hands-free, eyes-free Auto PC operation.
Speech recognition resolves user-spoken commands into a control for your application. Windows CE for the Auto PC uses discrete speech recognition, which recognizes words delineated by pauses.
TTS resolves text into synthesized speech. An Auto PC can read text using the TTS algorithms to determine phrasing, or you can adjust the phrasing that an Auto PC uses with control codes.
Speech recognition and TTS are exposed on an Auto PC through the Speech API (SAPI), which enables you to implement these technologies in your application. SAPI facilitates communication between your application and a speech recognition engine. Windows CE for the Auto PC uses a subset of SAPI for discrete speech recognition. It also adds interfaces that extend the SAPI features available for use in an automobile.