Even if a voice is configured as the default voice, it must also be assigned as a voice for the TTS server in order for the voice to be used by applications. See Assigning a new voice to a TTS server with a speech engine for more information.
To assign a default voice for TTS:
The system displays the Text-to-Speech Configuration screen. For information about this screen, see Text-to-Speech Configuration screen.
The system displays information about the success or failure of the administration attempt.
Administration changes do not take effect until you stop and start the voice system.