Stochastic Suprasegmentals: Relationships Between Redundancy, Prosodic Structure and Care of Articulation in Spontaneous Speech

Matthew Aylett

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Within spontaneous speech there are wide variations in the articulation of the same word by the same speaker. This paper explores two related factors which influence variation in articulation, prosodic structure and redundancy.
We argue that the constraint of producing robust communication while efficiently expending articulatory effort leads to an inverse relationship between language redundancy and care of articulation. The inverse relationship improves robustness by spreading the information more evenly across the speech signal leading to a smoother signal redundancy profile. We argue that prosodic prominence is a linguistic means of achieving smooth signal redundancy. Prosodic prominence increases care of articulation and
coincides with unpredictable sections of speech. By doing so, prosodic prominence leads to a smoother signal redundancy.
Results confirm the strong relationship between prosodic prominence and care of articulation as well as an inverse relationship between language redundancy and care of articulation. In addition, when variation in prosodic boundaries is controlled for, language redundancy can predict up to 65% of the variance in raw syllabic duration. This is comparable with 64% predicted by prosodic prominence (accent, lexical stress and vowel type). Moreover most (62%) of this predictive power is shared.
This suggests that, in English, prosodic structure is the means with which constraints caused by a robust signal requirement are expressed in spontaneous speech.
Original languageEnglish
Title of host publicationProceedings of the Sixth International Conference on Spoken Language Processing
Subtitle of host publicationICSLP 2000
PublisherISCA
Pages646-649
Number of pages4
Publication statusPublished - 2000
EventSixth International Conference on Spoken Language Processing - Beijing, China
Duration: 16 Oct 200020 Oct 2000

Conference

ConferenceSixth International Conference on Spoken Language Processing
CountryChina
CityBeijing
Period16/10/0020/10/00

Fingerprint Dive into the research topics of 'Stochastic Suprasegmentals: Relationships Between Redundancy, Prosodic Structure and Care of Articulation in Spontaneous Speech'. Together they form a unique fingerprint.

Cite this