Developing voice response applications from pre-recorded voice and stored text-to-speech prompts

Abstract

An interactive voice response application on a computer telephony system includes a method of playing voice prompts from a mixed set of pre-recorded voice prompts and voice prompts synthesised from a text-to-speech process. The method comprises: reserving memory for a synthesised prompt and a pre-recorded prompt associated with a particular prompt identifier; on a play prompt request selecting the pre-recorded prompt if available and outputting through a voice output; otherwise selecting the synthesised prompt and playing the selected voice prompt through the voice output. If neither pre-recorded or synthesised data are available then text associated with the voice prompt is output through a text-to-speech output.

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