Sökning: "sustained vowels"

Hittade 5 avhandlingar innehållade orden sustained vowels.

  1. 1. Hoarseness in ten-year-old children : perceptual characteristics, prevalence and etiology

    Författare :Elisabeth Sederholm; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Child voice; hoarseness; perceptual analysis; voice quality; visual analog scales; connected speech; sustained vowels; prevalence; acute hoarseness; chronic hoarseness; videolaryngoscopy; stroboscopy; incomplete glottal closure; vocal nodules; voice;

    Sammanfattning : The aim of the present investigation was to explore the occurrence of and factors related to hoarseness in ten- year-old children. In order to establish the prevalence of hoarseness in a group of normal children, a method to distinguish atypical from normal voices was introduced and the perceptual characteristics of hoarseness were identified. LÄS MER

  3. 2. Analyses of voice and glottographic signals in singing and speech

    Författare :Andreas Selamtzis; Sten Ternström; Paavo Alku; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; voice ; singing ; electroglottography ; clustering ; dysphonia ; sample entropy ; ; Tal- och musikkommunikation; Speech and Music Communication;

    Sammanfattning : Recent advances in machine learning and time series analysis techniques have brought new perspectives to a great number of scientific fields. This thesis contributes applications of such techniques to voice analysis, in an attempt to extract information on the vibration of the vocal folds as such, as well as on the radiated acoustic signal. LÄS MER

  4. 3. Acoustic, perceptual and physiological studies of ten-year-old children's voices

    Författare :Anita McAllister; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Child voice; hoarseness; perceptual evaluation; voice characteristics; visual analog scales; voice range profiles; fundamental frequency range; dynamic range; glottal closure; stroboscopy; vocal nodules; register transitions; subglottal pressure; SPL;

    Sammanfattning : The aim of the present investigation was to study hoarseness and its perceptual, acoustic and physiological characteristics in ten-year-old children's voices. Fifty-eight children's voices were perceptually evaluated along 15 voice parameters. LÄS MER

  5. 4. Speech, voice, language and cognition in individuals with spinocerebellar ataxia (SCA)

    Författare :Ellika Schalling; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Spinocerebellar ataxias (SCA) constitute a group of genetically defined hereditary, degenerative, progressive diseases affecting the cerebellum and its connections. Few previous investigations have focused on how SCA affects different aspects of communication. LÄS MER

  7. 5. Oral Motor Function, Voice, Speech and Language in Children with Tonsillar Hypertrophy in Relation to Surgical Outcome

    Författare :Inger Lundeborg Hammarström; Anita McAllister; Elisabeth Hultcrantz; Anneli Yliherva; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Otorhinolaryngology; Otorhinolaryngologi;

    Sammanfattning : The aim of this thesis was two-fold: first, to evaluate four different functional aspects of the speech and language spectrum; oral-motor function, voice, /s/-articulation and phonology in preschool children with tonsillar hypertrophy before and after surgical treatment. The second aim was to investigate weather the outcome of surgery was equal for two surgical techniques; tonsillectomy or tonsillotomy combined with adenoidectomy when necessary. LÄS MER