• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2
  • Tagged with
  • 3
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Effects of Nasalance on the Acoustics of the Tenor Passaggio and Head Voice

Perna, Nicholas K. 21 April 2008 (has links)
PERNA, NICHOLAS (D.M.A., Vocal Pedagogy and Performance) Effects of Nasalance on the Acoustical Properties of the (May 2008) Tenor Passaggio and Head Voice Abstract of a doctoral essay at the University of Miami. Doctoral essay supervised by Professor David Alt and Professor Rachel L. Lebon. No. of pages in text. (73) This study aims to measure the effect that nasality has on the acoustical properties of the tenor passaggio and head voice. Not to be confused with forward resonance, nasality here will be defined as nasalance, the reading of a Nasometer, or the percentage of nasal and oral airflow during phonation. A previous study by Peer Birch et. al. has shown that professional tenors used higher percentages of nasalance through their passaggio. They hypothesized that tenors used nasalance to make slight timbral adjustments as they ascended through passaggio. Other well respected authors including Richard Miller and William McIver have claimed that teaching registration issues is the most important component of training young tenors. It seemed logical to measure the acoustic effects of nasalance on the tenor passaggio and head voice. Eight professional operatic tenors participated as subjects performing numerous vocal exercises that demonstrated various registration events. These examples were recorded and analyzed using a Nasometer and Voce Vista Pro Software. Tenors did generally show an increase of nasalance during an ascending B-flat major scale on the vowels [i] and [u]. Perhaps the most revealing result was that six of seven tenors showed at least a 5-10% increase in nasalance on the note after their primary register transition on the vowel of [a]. It is suggested that this phenomenon receive further empirical scrutiny, because, if true, pedagogues could use nasalance as a tool for helping a young tenor ascend through his passaggio.
2

Características biológicas e vocais durante o desenvolvimento vocal masculino nos períodos pré, peri e pós muda vocal / Biological and vocal characteristics during vocal male development in vocal premutation, mutation and postmutation

Oliveira, Cristiane Ferraz de 02 October 2007 (has links)
As grandes mudanças ocorridas na voz masculina durante a puberdade fazem com que o estudo do desenvolvimento vocal masculino normal seja bastante interessante, entretanto pouco estudado. Assim, este trabalho teve como objetivo verificar as características biológicas e vocais durante desenvolvimento vocal masculino nos períodos pré, peri e pós muda vocal. Participaram deste estudo 85 indivíduos do sexo masculino, com idades entre 8 e 18 anos (\'X BARRA\' = 14 anos \'+ OU -\' 32 meses), divididos de acordo com o desenvolvimento vocal nos grupos \"pré-muda\", \"muda\", \"final muda\" e \"pós-muda\". Foram realizadas entrevista, medida de estatura e peso, auto-avaliação da maturação sexual, avaliação perceptivo-auditiva da voz falada (escala GIRBAS), medidas da freqüência fundamental habitual e fonetografia computadorizada. Com os resultados observou-se durante o desenvolvimento vocal: aumento significante da estatura e do peso; desenvolvimento gradativo dos genitais e dos pêlos pubianos, axilares e faciais; pequena porcentagem de alteração vocal discreta em todos os grupos, sendo maior no período da muda vocal (\"muda\" e \"final muda\"); diminuição significante da freqüência fundamental habitual em aproximadamente uma oitava; diminuição significante das freqüências mínima e máxima da fonetografia (11st e 7st respectivamente); aumento significante da extensão vocal e deslocamento desta em direção às freqüências mais graves; ocorrência significante de quebras de freqüência, durante fonetografia, no período da muda vocal; não houve mudança significante das intensidades mínima e máxima da fonetografia; não houve mudança significante da extensão dinâmica máxima, mas observou-se o seu deslocamento em direção às freqüências mais graves; houve aumento não significante na área do fonetograma. As mudanças mais notáveis na fonetografia ocorreram durante o período da muda vocal, entre os grupos \"muda\" e \"final muda\". / The great changes that occur in male\'s voice during puberty make the study of normal vocal male development a very interesting subject, however not much studied. In this manner, the aim of this study was to verify biological and vocal characteristics during vocal male development in vocal premutation, mutation, and postmutation. Eighty-five male subjects with ages ranging between 8 and 18 years (\'X BARRA\' = 14 years \'+ OU -\' 32 months) participated in this study. They were divided in 4 groups, according to their vocal development, such as: \"premutation\", \"mutation\", \"end of mutation\" and \"postmutation\". All the subjects have undergone an interview, a stature and weight measurement, a self-assessment of sexual maturation, a perceptive assessment of speaking voice (GIRBAS scale), measurements of habitual fundamental frequency, and computerized phonetography. The results have shown that during vocal development there was a significant increase of stature and weight; a gradual development of genitals and pubic, axillary and facial hair; a small percentage of vocal dysfonia for all groups specially during vocal mutation (groups \"mutation\" and \"end of mutation\"); a significant decrease of habitual fundamental frequency (approximately one octave). With regard to phonetography there was a significant decrease of minimum and maximum frequencies of phonetography (11st and 7st respectively); a significant increase of vocal range mainly toward lower frequencies; a significant occurrence of voice breaks, during phonetography, in vocal mutation. There was no significant change of minimum and maximum intensities; no significant change of maximum dynamic range, but it was dislocated toward lower frequencies; and a non significant increase of the phonetogram area. The most observed changes in phonetography occurred during vocal mutation, between the groups \"mutation\" and \"end of mutation\".
3

Características biológicas e vocais durante o desenvolvimento vocal masculino nos períodos pré, peri e pós muda vocal / Biological and vocal characteristics during vocal male development in vocal premutation, mutation and postmutation

Cristiane Ferraz de Oliveira 02 October 2007 (has links)
As grandes mudanças ocorridas na voz masculina durante a puberdade fazem com que o estudo do desenvolvimento vocal masculino normal seja bastante interessante, entretanto pouco estudado. Assim, este trabalho teve como objetivo verificar as características biológicas e vocais durante desenvolvimento vocal masculino nos períodos pré, peri e pós muda vocal. Participaram deste estudo 85 indivíduos do sexo masculino, com idades entre 8 e 18 anos (\'X BARRA\' = 14 anos \'+ OU -\' 32 meses), divididos de acordo com o desenvolvimento vocal nos grupos \"pré-muda\", \"muda\", \"final muda\" e \"pós-muda\". Foram realizadas entrevista, medida de estatura e peso, auto-avaliação da maturação sexual, avaliação perceptivo-auditiva da voz falada (escala GIRBAS), medidas da freqüência fundamental habitual e fonetografia computadorizada. Com os resultados observou-se durante o desenvolvimento vocal: aumento significante da estatura e do peso; desenvolvimento gradativo dos genitais e dos pêlos pubianos, axilares e faciais; pequena porcentagem de alteração vocal discreta em todos os grupos, sendo maior no período da muda vocal (\"muda\" e \"final muda\"); diminuição significante da freqüência fundamental habitual em aproximadamente uma oitava; diminuição significante das freqüências mínima e máxima da fonetografia (11st e 7st respectivamente); aumento significante da extensão vocal e deslocamento desta em direção às freqüências mais graves; ocorrência significante de quebras de freqüência, durante fonetografia, no período da muda vocal; não houve mudança significante das intensidades mínima e máxima da fonetografia; não houve mudança significante da extensão dinâmica máxima, mas observou-se o seu deslocamento em direção às freqüências mais graves; houve aumento não significante na área do fonetograma. As mudanças mais notáveis na fonetografia ocorreram durante o período da muda vocal, entre os grupos \"muda\" e \"final muda\". / The great changes that occur in male\'s voice during puberty make the study of normal vocal male development a very interesting subject, however not much studied. In this manner, the aim of this study was to verify biological and vocal characteristics during vocal male development in vocal premutation, mutation, and postmutation. Eighty-five male subjects with ages ranging between 8 and 18 years (\'X BARRA\' = 14 years \'+ OU -\' 32 months) participated in this study. They were divided in 4 groups, according to their vocal development, such as: \"premutation\", \"mutation\", \"end of mutation\" and \"postmutation\". All the subjects have undergone an interview, a stature and weight measurement, a self-assessment of sexual maturation, a perceptive assessment of speaking voice (GIRBAS scale), measurements of habitual fundamental frequency, and computerized phonetography. The results have shown that during vocal development there was a significant increase of stature and weight; a gradual development of genitals and pubic, axillary and facial hair; a small percentage of vocal dysfonia for all groups specially during vocal mutation (groups \"mutation\" and \"end of mutation\"); a significant decrease of habitual fundamental frequency (approximately one octave). With regard to phonetography there was a significant decrease of minimum and maximum frequencies of phonetography (11st and 7st respectively); a significant increase of vocal range mainly toward lower frequencies; a significant occurrence of voice breaks, during phonetography, in vocal mutation. There was no significant change of minimum and maximum intensities; no significant change of maximum dynamic range, but it was dislocated toward lower frequencies; and a non significant increase of the phonetogram area. The most observed changes in phonetography occurred during vocal mutation, between the groups \"mutation\" and \"end of mutation\".

Page generated in 0.055 seconds