Yoonsook Mo

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Speakers communicate pragmatic and discourse meaning through the prosodic form assigned to an utterance, and listeners must attend to the acoustic cues to prosodic form to fully recover the speaker's intended meaning. While much of the research on prosody examines supra-segmental cues such as F0 and temporal patterns, prosody is also known to affect the(More)
This study investigated the relation between various acoustic features and prominence. Past research has suggested that duration , pitch, and intensity all play a role in the perception of prominence. In our past work, we found a correlation between these acoustic features and speaker agreement over the placement of prominence. The current study was(More)
I investigate the acoustic correlates of prosodic prominence and boundary, as they are perceived by naïve listeners, in spontaneous speech from American English (Buckeye corpus). Prosodic prominence and phrasing serve different functions in speech communication: prosodic phrase boundaries demarcate speech chunks that typically cohere semantically, while(More)
Complex disfluencies that involve the repetition or correction of words are frequent in conversational speech, with repetition disfluencies alone accounting for over 20% of disfluencies. These disfluencies generally do not lead to comprehension errors for human listeners. We propose that the frequent occurrence of parallel prosodic features in the(More)
As an effort to make prosody useful in spontaneous speech recognition, we adopt a quasi-continuous prosodic annotation and accordingly design a prosody-dependent acoustic model to improve ASR performances. We propose a variable-parameter Hidden Markov Models, modeling the mean vector as a function of the prosody variable through a polynomial regression(More)
Repetition disfluencies are among the most frequent type of disfluency in conversational speech, accounting for over 20% of disfluencies, yet they do not generally lead to comprehension errors for human listeners. We propose that parallel prosodic features in the REP and ALT intervals of the repetition disfluency provide strong perceptual cues that signal(More)
Prosody serves an important function in speech communication: prosodic phrasing groups words into pragmatically and semantically coherent smaller chunks and prosodic prominence encodes the discourse-level status and rhythmic structure of a word within a phrase. Acoustic cues to prosody are available from the speech signal and can be used by listeners to(More)
This work presents a series of experiments which explore the utility of various acoustic features in the classification of words as prosodically prominent or nonprominent. For this set of experiments, a 35,009 word subset of the Buckeye Speech Corpus was used [12]. This subset is divided across fifty-four segments of the Buckeye Speech Corpus. In a previous(More)
This study investigates the relationship between variation due to prosodic prominence and variation due to sound change. We compare two hypotheses: under prominence vowels move in the direction of vowel shift, and under prominence vowels are hyperarticulated, and move to positions more peripheral in the vowel space. These hypotheses make competing(More)
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