Voice pitch illusion and perception of speaker's body size: Relationship with the spectral tilt in speech sound

[摘要] Voice pitch illusion is a phenomenon that appears when the tone quality of the voice is different. Under certain tonal conditions, even if the fundamental frequency ( fo) is low, it is mistakenly recognized as a high voice [1–3]. For example, suppose that the frequency axis of the spectral envelope of speech is expanded or compressed, simulating reduction or increase in the vocal tract length. Extention of the vocal tract length systematically changes the tone quality of the voice from a thin voice to a deep voice. Furthermore, when comparing ‘‘high fo and deep voice’’ with ‘‘low fo and thin voice,’’ ‘‘low fo and thin voice’’ sounds like ‘‘high voice’’ for some reason.

[学科分类] 声学和超声波

[关键词] Pitch;Tone quality;Vocal tract length;Spectral centroid;WORLD