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 20 of 40 for “"voice quality"”.
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Organic variation and voice quality
… examines the contribution of organic factors to voice quality. As background, the first part of the thesis examines the structure and properties of the tissues which make up the vocal apparatus, and discusses the growth patterns of these tissues in normal development, and in response to trauma …
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Parkinsonian Speech and Voice Quality: Assessment and Improvement
… nearly 90% of people impaired with PD develop voice and speech disorders. Speech production impairments in PD subjects typically result in hypophonia and consequently, poor speech signal-to-noise ratio (SNR) in noisy environments and inferior speech intelligibility and quality. Assessment, …
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Computer Implemented Approaches Towards the Objectification of Sampled Pathologic Voice Quality
Made available in DSpace on 2014-12-14T05:26:43Z (GMT). No. of bitstreams: 1 7726697.pdf: 7652175 bytes, checksum: 1ad696a40a5865bc74ce2b9f66f075ad (MD5) Previous issue date: 1977
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The Effect of Perceptual Set on Listener Judgments of Voice Quality Deviations
… of perceptual set on listeners' judgments of voice quality deviations. Perceptual set was created by instructions given to an experimental group which limited their choices, thus encouraging a particular response. The effect of set on the overall performance of the group, on backward versus …
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Optimizing acoustic and perceptual assessment of voice quality in children with vocal nodules
… assessment of vocal function in children with voice disorders. The goal of this investigation was to identify a minimal set of speech tasks and associated acoustic analysis methods that are most salient in characterizing the impact of vocal nodules on vocal function in children. Hence, a …
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Effects of Voice Quality and Face Information on Infants' Speech Perception in Noise
A recent study by Polka, Rvachew, and Molnar (2008) found that 6- to 8-month-old infants do not discriminate a simple native consonant-vowel contrast when familiarized to it in the presence of distraction noise (i.e., recordings of crickets and birds chirping), even when testing was conducted in …
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An Algorithm to Evaluate the Echo Signal and the Voice Quality in VoIP Networks
Voice over the Internet Protocol (VoIP) has been increasingly popular, but reliability and voice quality remain important factors that limit the widespread adoption of VoIP systems. Providing good voice quality is of major importance for the transition from the PSTN to VoIP networks. There are …
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A novel non-intrusive objective method to predict voice quality of service in LTE networks.
… for non-intrusive objective measurement of voice Quality of Service (QoS) in LTE networks. While achieving this aim, the thesis established a thorough knowledge of how voice traffic is handled in LTE networks, the LTE network architecture and its similarities and differences to its …
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A sociophonetic investigation of ethnolinguistic differences in voice quality among young, South African English speakers
… has suggested that there may be differences in voice quality between black and white speakers of South African English who had attended well-resourced middle-class schools. The principal objective of the study is to address the question of whether there is any acoustic evidence of such …
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Kinematic Modeling of Asymmetric Vocal Fold Vibration
… particular asymmetries contribute to breathy voice and which asymmetries must be eliminated to re-establish normal voice will be important to improving evaluation and treatment of VFMI. It was hypothesized that several structural and vibratory asymmetries should lead to predictable changes in …
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Acoustic Analysis of the Voice in Native and Nonnative Speakers
There are significant differences in voice parameters for nonspeech tasks between culturally and linguistically diverse sample populations. Normative data of standard clinical software programs is typically comprised of North American speakers of Standard American English (SAE). There is a need for …
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Development of a Hindi Version of Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V)
… Consensus of Auditory Perceptual Evaluation of Voice (CAPE-V), a tool for speech language pathologists to assess voice quality and degree of hoarseness. The Hindi version of the CAPE-V will be vital in voice assessments conducted in India and across the world for Hindi speaking individuals. …
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Quality-aware voice convergecast in mobile low power wireless networks
… have shown the critical need for reliable voice communication for mobile users. Low power ad hoc wireless networks have become a promising alternative for voice communication in emergency scenarios because of their low cost and portability. In order to increase communication amongst moving …
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Exposing the hidden vocal channel: Analysis of vocal expression
… keywords describing the vocal expression in the voice. The resulting keywords described prosody, voice quality, nonverbal quality, and emotion in the voice, along with the conversational style, and personal qualities attributed to the speaker. More than half of the keywords described emotion, and …
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Connections Between Voice and Design in Puppetry: A Case-Study
… their puppet characters to life with clever voice quality choices, unique characterizations, and vivid visual designs. This thesis is a case study that first borrows insight from cartoon character designers, animators, and voiceover actors to provide considerations for voice quality choices, …
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Impact of human vocal fold vibratory asymmetries on acoustic characteristics of sustained vowel phonation
Clinical voice specialists make critical diagnostic, medical, therapeutic, and surgical decisions by coupling visual observations of vocal fold tissue motion with auditory-perceptual assessments of voice quality. The details of the relationship between vocal fold tissue motion and the voice …
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Emotional Prosody Communication In Long-Term Abstained Alcoholics
… controls. A further goal was to explore how voice qualities of AA compared with healthy controls. To this aim, twenty-one naïve listeners heard randomly selected recordings from Study 1 and were asked to judge the emotion in a force-choice paradigm followed by a judgment of the speakers voice …
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Estimation of glottal source features from the spectral envelope of the acoustic speech signal
… including phonetics, affective state, voice quality, and speaker identity. From a speech production standpoint, the acoustic speech signal can be mainly divided into glottal source and vocal tract components, which play distinct roles in rendering the various types of information it …
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A Digital System for Multiplex Speech Transmission
… Code Modulation) systems, while maintaining good voice quality. This is accomplished by using simple predictive techniques to remove redundant samples from the digitized speech signal. A computer aided study of conversational speech revealed that such a strategy would eliminate e substantial …
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Reliability Of The Concensus Auditory-perceptual Evaluation Of Voice On Pediatric Voices With Trained And Untrained Listeners
Rating scales are commonly used to study voice quality. The purpose of this study was to examine inter-rater reliability/agreement of graduate student clinicians with differing levels of experience in rating voice perception. The Consensus Auditory Perception Evaluation of Voice (CAPE-V) was used …
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