On the Edge: Acoustic Cues to Layered Prosodic Domains
نویسندگان
چکیده
Prosodic structure encodes the grouping of words into hierarchically layered prosodic constituents, including the prosodic word, intermediate phrase (ip) and intonational phrase (IP). This paper investigates the phonetic encoding of prosodic structure from a corpus of scripted broadcast news speech in American English through analysis of the acoustic correlates of prosodic boundary and their interaction with phrasal stress (pitch-accent) at three levels of prosodic structure: Word, ip, and IP. Evidence for acoustic effects of prosodic boundary is shown in measures of duration local to the domain-final rime. These findings provide strong evidence for prosodic theory, showing acoustic correlates of a 3-way distinction in boundary level.
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