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https://www.readbyqxmd.com/read/28925286/vocal-function-exercises-for-normal-voice-the-effects-of-varying-dosage
#1
Maria Bane, Vrushali Angadi, Emily Dressler, Richard Andreatta, Joseph Stemple
PURPOSE: This study examined the effect of varying dosage of vocal function exercise (VFE) home practice on attainment of pre-established maximum phonation time (MPT) goals in individuals with normal voice. High dosage VFE practice was expected to result in greatest MPT. The overarching goal of this study was to contribute to a VFE dosage-response curve, potentially including a point of observable toxicity. METHOD: Twenty-eight females ages 18-25 with normal voice participated in this pre-post longitudinal group study...
September 19, 2017: International Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28902229/correlation-between-vocal-tract-symptoms-and-modern-singing-handicap-index-in-church-gospel-singers
#2
Joel Pinheiro, Kelly Cristina Alves Silverio, Larissa Thaís Donalonso Siqueira, Janine Santos Ramos, Alcione Ghedini Brasolotto, Fabiana Zambon, Mara Behlau
Objective: To verify the correlation between vocal tract discomfort symptoms and perceived voice handicaps in gospel singers, analyzing possible differences according to gender. Methods: 100 gospel singers volunteered, 50 male and 50 female. All participants answered two questionnaires: Vocal Tract Discomfort (VTD) scale and the Modern Singing Handicap Index (MSHI) that investigates the vocal handicap perceived by singers, linking the results of both instruments (p<0...
August 24, 2017: CoDAS
https://www.readbyqxmd.com/read/28898358/relevance-of-the-implementation-of-teeth-in-three-dimensional-vocal-tract-models
#3
Louisa Traser, Peter Birkholz, Tabea Viktoria Flügge, Robert Kamberger, Michael Burdumy, Bernhard Richter, Jan Gerrit Korvink, Matthias Echternach
Purpose: Recently, efforts have been made to investigate the vocal tract using magnetic resonance imaging (MRI). Due to technical limitations, teeth were omitted in many previous studies on vocal tract acoustics. However, the knowledge of how teeth influence vocal tract acoustics might be important in order to estimate the necessity of implementing teeth in vocal tract models. The aim of this study was therefore to estimate the effect of teeth on vocal tract acoustics. Method: The acoustic properties of 18 solid (3-dimensional printed) vocal tract models without teeth were compared to the same 18 models including teeth in terms of resonance frequencies (fRn)...
September 18, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28886973/vocal-tract-morphology-in-inhaling-singing-characteristics-during-vowel-production-a-case-study-in-a-professional-singer
#4
Mieke Moerman, Françoise Vanhecke, Lieven Van Assche, Johan Vercruysse
BACKGROUND: A professional singer produced various vowels on a comfortable loudness and pitch in an inspiratory and expiratory phonation manner. The present study investigates the morphological differences and tries to find a link with the acoustical characteristics. OBJECTIVES/HYPOTHESIS: We hypothesize that features, constantly present over all vowels, characterize inhaling phonation and that the formant frequencies reflect the morphological findings. STUDY DESIGN: A prospective case study was carried out...
September 5, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28878980/the-origins-of-babytalk-smiling-teaching-or-social-convergence
#5
Marina Kalashnikova, Christopher Carignan, Denis Burnham
When addressing their young infants, parents systematically modify their speech. Such infant-directed speech (IDS) contains exaggerated vowel formants, which have been proposed to foster language development via articulation of more distinct speech sounds. Here, this assumption is rigorously tested using both acoustic and, for the first time, fine-grained articulatory measures. Mothers were recorded speaking to their infant and to another adult, and measures were taken of their acoustic vowel space, their tongue and lip movements and the length of their vocal tract...
August 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28863607/effect-of-level-difference-between-left-and-right-vocal-folds-on-phonation-physical-experiment-and-theoretical-study
#6
Isao T Tokuda, Ryo Shimamura
As an alternative factor to produce asymmetry between left and right vocal folds, the present study focuses on level difference, which is defined as the distance between the upper surfaces of the bilateral vocal folds in the inferior-superior direction. Physical models of the vocal folds were utilized to study the effect of the level difference on the phonation threshold pressure. A vocal tract model was also attached to the vocal fold model. For two types of different models, experiments revealed that the phonation threshold pressure tended to increase as the level difference was extended...
August 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28863564/a-one-dimensional-search-method-with-stable-1-norm-solution-for-linear-prediction
#7
M K Jayesh, C S Ramalingam
In this paper a simple iterative algorithm that is guaranteed to produce a stable all-pole filter when minimizing the 1-norm of the linear prediction error signal is proposed. The approach works for both the autocorrelation and covariance frameworks, involves only a one-dimensional search at each step, and obviates the need for linear programming based methods. Based on simulation studies, it was observed that the performance of the algorithm is nearly optimal, i.e., very close to the estimates obtained using interior point methods...
August 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28852841/association-of-breathing-sound-spectra-with-glottal-dimensions-in-exercise-induced-vocal-cord-dysfunction
#8
Ahmed Geneid, L-M Aaltonen, L Porra, J Peltonen, K Palmu, A Sovijärvi, P Piirilä
The objective of this study was to evaluate associations between the breathing sound spectra and glottal dimensions in exercise-induced vocal cord dysfunction (EIVCD) during a bicycle ergometry test. Nineteen subjects (mean age 21.8 years and range 13-39 years) with suspected EIVCD were studied. Vocal folds were continuously imaged with videolaryngoscopy and breathing sounds were recorded during the bicycle exercise test. Twelve subjects showed paradoxical movement of the vocal folds during inspiration by the end of the exercise...
August 29, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28841483/major-depressive-disorder-discrimination-using-vocal-acoustic-features
#9
Takaya Taguchi, Hirokazu Tachikawa, Kiyotaka Nemoto, Masayuki Suzuki, Toru Nagano, Ryuki Tachibana, Masafumi Nishimura, Tetsuaki Arai
BACKGROUND: The voice carries various information produced by vibrations of the vocal cords and the vocal tract. Though many studies have reported a relationship between vocal acoustic features and depression, including mel-frequency cepstrum coefficients (MFCCs) which applied to speech recognition, there have been few studies in which acoustic features allowed discrimination of patients with depressive disorder. Vocal acoustic features as biomarker of depression could make differential diagnosis of patients with depressive state...
August 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28839006/the-physiology-of-oral-whistling-a-combined-radiographic-and-mri-analysis
#10
Alba Miranda Azola, Jeffrey Palmer, Rachel Mulheren, Riccardo Hofer, Florian Fischmeister, W Tecumseh Fitch
The fluid mechanics of whistling involve the instability of an air jet, resultant vortex rings, and the interaction of these rings with rigid boundaries (2,4). Experimental models support the hypothesis that the sound in human whistling is generated by a Helmholtz resonator, suggesting that the oral cavity acts as a resonant chamber bounded by two orifices, posteriorly by raising the tongue to the hard palate, and anteriorly by pursed lips 2,2,3). However, the detailed anatomical changes in the vocal tract and their relation to the frequencies generated have not been described in the literature...
August 24, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28837727/short-term-effect-of-two-semi-occluded-vocal-tract-training-programs-on-the-vocal-quality-of-future-occupational-voice-users-resonant-voice-training-using-nasal-consonants-versus-straw-phonation
#11
Iris Meerschman, Kristiane Van Lierde, Karen Peeters, Eline Meersman, Sofie Claeys, Evelien D'haeseleer
Purpose: The purpose of this study was to determine the short-term effect of 2 semi-occluded vocal tract training programs, "resonant voice training using nasal consonants" versus "straw phonation," on the vocal quality of vocally healthy future occupational voice users. Method: A multigroup pretest-posttest randomized control group design was used. Thirty healthy speech-language pathology students with a mean age of 19 years (range: 17-22 years) were randomly assigned into a resonant voice training group (practicing resonant exercises across 6 weeks, n = 10), a straw phonation group (practicing straw phonation across 6 weeks, n = 10), or a control group (receiving no voice training, n = 10)...
September 18, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28820002/applicability-of-the-arabic-version-of-vocal-tract-discomfort-scale-vtds-with-student-singers-as-professional-voice-users
#12
Wesam B Darawsheh, Yaser S Natour, Eve G Sada
AIM: This pilot study aimed to evaluate the internal consistency, convergent construct validity and criterion validity of Arabic version of the Vocal Tract Discomfort Scale (VTDS), and to investigate the correlation between the scores of the VTDS, the VHI and the acoustic measures of fundamental frequency (F0), shimmer, jitter and signal-to-noise ratio (SNR). METHODOLOGY: A cross-sectional study where 97 participants participated (47 males and 50 females) (mean age 20...
August 18, 2017: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/28799983/discrimination-of-voice-pitch-and-vocal-tract-length-in-cochlear-implant-users
#13
Etienne Gaudrain, Deniz Başkent
OBJECTIVES: When listening to two competing speakers, normal-hearing (NH) listeners can take advantage of voice differences between the speakers. Users of cochlear implants (CIs) have difficulty in perceiving speech on speech. Previous literature has indicated sensitivity to voice pitch (related to fundamental frequency, F0) to be poor among implant users, while sensitivity to vocal-tract length (VTL; related to the height of the speaker and formant frequencies), the other principal voice characteristic, has not been directly investigated in CIs...
August 9, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28791513/what-s-in-a-voice-dolphins-do-not-use-voice-cues-for-individual-recognition
#14
Laela S Sayigh, Randall S Wells, Vincent M Janik
Most mammals can accomplish acoustic recognition of other individuals by means of "voice cues," whereby characteristics of the vocal tract render vocalizations of an individual uniquely identifiable. However, sound production in dolphins takes place in gas-filled nasal sacs that are affected by pressure changes, potentially resulting in a lack of reliable voice cues. It is well known that bottlenose dolphins learn to produce individually distinctive signature whistles for individual recognition, but it is not known whether they may also use voice cues...
August 8, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28739332/effects-of-voice-therapy-on-muscle-tension-dysphonia-a-systematic-literature-review
#15
REVIEW
Gabriela da Cunha Pereira, Isadora de Oliveira Lemos, Camila Dalbosco Gadenz, Mauriceia Cassol
The present study aimed to carry out a systematic review of the effects of voice therapy on individuals diagnosed with muscle tension dysphonia (MTD) or hyperfunctional dysphonia. This is a systematic literature review on the databases Medline (via PubMed), Cochrane Library, Scopus, and Lilacs using a search strategy related to the theme of the study. The selection included clinical trials that assessed the effects of speech therapy intervention on patients diagnosed with MTD or hyperfunctional dysphonia published over the last 10 years in Portuguese, English, or Spanish...
July 21, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28738366/neuroanatomical-correlates-of-hypophonia-in-subcortical-vascular-cognitive-impairment
#16
Ji Hye Yoon, Yisuh Ahn, Sook Hui Kim, Juhee Chin, Seongbeom Park, Duk L Na
BACKGROUND/AIMS: Early detection and intervention may alter the disease course of subcortical vascular cognitive impairment (SVCI). Patients with SVCI have white matter ischemia that disrupts connections between the cortex and subcortical gray matter and therefore manifest various symptoms such as motor disturbances and behavioral/cognitive dysfunction. Reduced vocal loudness, or hypophonia, is one of the common motor symptoms of SVCI, but few studies have systematically investigated it in this patient population...
2017: European Neurology
https://www.readbyqxmd.com/read/28724740/grasshopper-mice-employ-distinct-vocal-production-mechanisms-in-different-social-contexts
#17
Bret Pasch, Isao T Tokuda, Tobias Riede
Functional changes in vocal organ morphology and motor control facilitate the evolution of acoustic signal diversity. Although many rodents produce vocalizations in a variety of social contexts, few studies have explored the underlying production mechanisms. Here, we describe mechanisms of audible and ultrasonic vocalizations (USVs) produced by grasshopper mice (genus Onychomys). Grasshopper mice are predatory rodents of the desert that produce both loud, long-distance advertisement calls and USVs in close-distance mating contexts...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28712601/the-effects-of-uvulopalatal-flap-operation-on-speech-nasalance-and-the-acoustic-parameters-of-the-final-nasal-consonants
#18
Soo Kyoung Park, Yong Soo Lee, Young Ae Kang, Jun Xu, Ki Sang Rha, Yong Min Kim
OBJECTIVE: The acoustic characteristics of voice are determined by the source of the sound and shape of the vocal tract. Various anatomical changes after uvulopalatal flap (UPF) operation can change nasalance and/or other voice characteristics. Our aim was to explore the possible effects of UPF creation on speech nasalance and the resonatory features of the final nasal consonants, and thus voice characteristics. METHODS: A total of 30 patients (26 males, 4 females) with obstructive sleep apnea who underwent UPF operation were recruited...
July 13, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28709764/using-receiver-operating-characteristic-curve-to-define-the-cutoff-points-of-voice-handicap-index-applied-to-young-adult-male-smokers
#19
Dionysios Tafiadis, Spyridon K Chronopoulos, Evangelia I Kosma, Louiza Voniati, Vasilis Raptis, Vasiliki Siafaka, Nausica Ziavra
Voice performance is an inextricable key factor of everyday life. Obviously, the deterioration of voice quality can cause various problems to human communication and can therefore reduce the performance of social skills (relevant to voice). The deterioration could be originated from changes inside the system of the vocal tract and larynx. Various prognostic methods exist, and among them is the Voice Handicap Index (VHI). This tool includes self-reported questionnaires, used for determining the cutoff points of total score and of its three domains relevant to young male Greek smokers...
July 11, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28695214/response-to-lieberman-on-monkey-vocal-tracts-are-speech-ready
#20
W Tecumseh Fitch, Bart de Boer, Neil Mathur, Asif A Ghazanfar
Macaques do have a speech-ready vocal tract, but lack a speech-ready brain to control it.
July 2017: Science Advances
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