This paper describes a rule-based approach for verifying a three-layer model that was proposed for modeling expressive speech perception. The three layers are expressive speech, semantic primitives, and acoustic features. In our previous work we built the model. In the current work, the built model is verified by creating rules with parameters that morph the acoustic characteristics of a neutral utterance to the perception of certain semantic primitives or expressive speech categories. There are two types of rules. Base rules verify the validity of the analytic results. Intensity rules verify the perceived intensity of expressive speech and semantic primitives. The experiments results show the significant relationships of expressive speech, semantic primitives, and acoustic features. This model will help to develop tools such as a synthesizer to produce utterances that could give listeners the perception of different categories and intensity-levels of expressive speech.
Bibliographic reference. Huang, Chun-Fang / Akagi, Masato (2007): "A rule-based speech morphing for verifying a expressive speech perception model", In INTERSPEECH-2007, 2661-2664.