Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"stop consonants"”.
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Acoustical study of the development of stop consonants in children
This study focuses on the acoustic patterns of stop consonants and adjacent vowels as they develop in young children (ages 2;6-3;3) over a six month period. Speech is generated using a series of articulatory, laryngeal, and respiratory gestures that children must learn to reproduce. As a child's …
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Acoustic and perceptual assessment of stop consonants produced by normal and dysarthric speakers
Thesis (Ph.D.)--Harvard--Massachusetts Institute of Technology Division of Health Sciences and Technology, 2000.
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Determining articulator configuration in voiced stop consonants by matching time-domain patterns in pitch periods
… technique for categorizing the English voiced stops as the consonants B, D, or G based on the vocalic portions of their releases. The classification recognizes 93.5%, 81.8% and 86.1% of the b, d and g to ae transitions with false positive rates 2.9%, 8.7% and 2.6% respectively.
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Effects of Aging and Spectral Shaping on the Sub-cortical (Brainstem) Differentiation of Contrastive Stop Consonants
… (brainstem) differentiation of voiced stop consonants (i.e. /b-d-g/); (2) determine whether potential aging deficits at the brainstem level influence behavioral identification of the /b-d-g/ stimuli, (3) investigate whether spectral shaping diminishes any aging impairments at the …
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Temporal Aspects of Speech: The Encoding of Naturally Produced and Spectrally Reduced Synthetic Speech by the Auditory Nerve
… of the auditory nerve to uniquely identify stop consonants even when the spectral cues are significantly degraded. Furthermore, these patterns are consistent with the psychoacoustic findings, in that stimuli that produced greater pattern similarity to the natural responses were recognized …
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Promoting Speech and Vocabulary Development through Specialized Storybooks in Children with and without Cleft Palate.
… use of target vocabulary and production of stop consonants, while reducing compensatory articulation errors. Generalization of targets to a picture-naming task, a free-play task, and to the home was observed. Effect sizes were moderate-to-high. Children with CLP required more sessions to …
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Study of a Parent Implemented Language Treatment for Young Children with Cleft Lip and/or Palate.
… of focused stimulation that emphasized stop consonants through overaspiration of stops (Golding-Kushner, 2001). Four mother-child dyads participated in the study. Each mother received training regarding the implementation of the two treatments. The two interventions were counterbalanced …
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Automatic Detection of Landmark Acoustic Cues in Human Speech
… in the oral region (e.g., nasal, fricative, and stop consonants). A complete landmark detection system is a key step towards an overarching speech analysis system that relies on lexical acoustic cues, as landmarks guide the identification of other acoustic cues in speech. In the proposed …
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Integration of phonological information in obstruent consonant identification
… (e.g., spectral and temporal properties of stop consonants in voicing contrasts). Many fewer studies have addressed relationships between phonological dimensions. Most such studies have focused on the perception of sequences of phones (e.g., 'bid', 'bed', 'bit', 'bet'), though some have …
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Auditory model comparison and optimization using dynamic time warping
… produced and spectrally reduced synthetic stop consonants. We produce and compare optimized models that harness the aforementioned major phenomena. Additionally, we find that the comparison technique predicts that incremental modeling of auditory phenomena will simulate more accurate neural …
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Teaching Children to Decode Words: Connected Versus Segmented Phonation
… set of CVC nonwords consisting of continuant consonants and vowels that could be stretched and connected without altering their phonemic identities and without breaking the speech stream. Following learning, students completed a transfer task to decode CVC nonwords with stop consonants that …
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Techniques for understanding hearing-impaired perception of consonant cues
… vowel /A/. Use of low-context stimuli, such as consonants, aids in minimizing the influence of some variable cognitive abilities (e.g., use of context, memory) across listeners, and focuses on differences in the processing or interpretation of the existing acoustic consonant cues. In a previous …
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Prosodically Induced Acoustic Variation in English, Korean, and Hindi
… of laryngeal phonological contrasts among stop consonants and supralaryngeal contrasts among vowels, and the role of systemic and prosodic factors in governing such variation. These research goals are investigated with English, Korean, and Hindi CV sequences in utterance initial (U) or …
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Analysis of the pressure-wall interaction at the release of a stop closure
In producing a stop consonant, a soft tissue articulator, such as the lower lip, the tongue tip, or the tongue body, is raised to make an airtight closure. Stevens [I] pp 32 9-3 30 hypothesized that the interaction of the air pressure with the yielding soft-tissue wall would lead to a …
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The phonetics and phonology of coronal markedness and unmarkedness
… place feature restrictions in oral and nasal stop consonants with a special focus on the asymmetrical behavior of coronal and noncoronal stops. Two conflicting patterns of place restriction in outputs are attested: coronal unmarkedness and coronal markedness. This thesis shows that coronal …
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The structure of variation in spontaneous American English stops
… general structure in the acoustic variation of stops, to see how variation is related to a stop's phonological features. The primary focus of this thesis is on the relationship between acoustic cues to a stop's contrastive phonological features, and whether that relationship is maintained or …