Vocal Effects in Military Students Submitted to an Intense Recruit Training: A Pilot Study

Nascimento, Camila Lima; Constantini, Ana Carolina; Mourão, Lúcia Figueiredo

doi:10.1016/j.jvoice.2015.03.005

Cited by 7 publications

(5 citation statements)

References 22 publications

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“…A third group of occupational voice users included singers, street sellers, and broadcasters [5, 28–30, 32, 38, 42, 56, 61, 63]. Singing is considered a task with high vocal demand.…”

Section: Resultsmentioning

confidence: 99%

“…Among the physiological parameters that allow analyzing the biomechanics of vibration in the vocal folds, the literature reports H1-H2, which indirectly determines the time that the vocal folds are open during a phonation cycle and open quotient related to the presence of breathiness in vocal quality [38]. Aerodynamic measurements were also reported to characterize vocal load.…”

Section: Part Two Content Analysismentioning

confidence: 99%

See 1 more Smart Citation

Systematic Review of Literature on Vocal Demand Response: Understanding Physiology, Measurements, and Associated Factors

Mora¹,

Cutiva²,

Hunter³

et al. 2023

Folia Phoniatr Logop

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Purpose: Considering the conceptual migration from vocal load and vocal loading to vocal demand and vocal demand response, this review of literature aims to identify physiological explanations, reported measurements, and associated factors (vocal demands) reported in the literature when considering the phonatory response to a vocal demand. Methods: A systematic review of literature, following the PRISMA Statement, was conducted using Web of Science, PubMed, Scopus, and Science Direct. Data were analyzed and presented in two parts. First, a bibliometric analysis, co-occurrence analysis, and content analysis were performed. Three criteria got article inclusion were defined: (1) written in English, Spanish, and Portuguese, (2) published between 2009 and 2021, and (3) focused on vocal load and loading, vocal demand response, and voice assessment parameters. A total of 54 publications met the criteria and were included in this review. The second part included a conceptual framework based on the content analysis of three aspects of vocal demand response: (1) physiological explanations, (2) reported measurements, and (3) vocal demands. Results and Conclusion: As would be expected since vocal demand response is a relatively new term and not yet commonly used in literature when discussing way that the speakers respond to communicative scenarios, most of the studies reviewed (both historical and recent) still use the term of vocal load and vocal loading. Although there is a broad variety of literature discussing a wide range of vocal demands and voice parameters used to characterize the vocal demand response, results show that there is consistency across the studies. While vocal demand response is unique and intrinsic to the talker, associated factors that contribute to this response include both internal talker and external talker factors. Internal factors include muscle stiffness, viscosity in the phonatory system, vocal fold tissue damage, elevated sound pressure levels during occupational voice demands, extended periods of voice use, sub-optimal body posture, difficulties in breathing technique, and sleep disturbances. Associated external factors include the working environment (noise, acoustics, temperature, humidity). In conclusion, although vocal demand response is intrinsic to the speaker, the speaker’s response is affected by external vocal demands. However, due to the wide methods to evaluate vocal demand response, it has been difficult to establish its contribution to voice disorders in the general population, and specifically, among occupational voice users. This literature review identified commonly reported parameters and factors that may help clinicians and researchers to define vocal demand response.

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“…A third group of occupational voice users included singers, street sellers, and broadcasters [5, 28–30, 32, 38, 42, 56, 61, 63]. Singing is considered a task with high vocal demand.…”

Section: Resultsmentioning

confidence: 99%

Section: Part Two Content Analysismentioning

confidence: 99%

Systematic Review of Literature on Vocal Demand Response: Understanding Physiology, Measurements, and Associated Factors

Mora¹,

Cutiva²,

Hunter³

et al. 2023

Folia Phoniatr Logop

View full text Add to dashboard Cite

show abstract

“…In future work, the long-term speech spectrum and extracted spectral parameters will be tested for their robustness to various factors affecting speech, such as emotions [7], physical fatigue [12], vocal effort [9,28], and others [4]. Furthermore, it will be useful to also investigate the influence of adverse acoustic conditions, especially non-stationary noises [29] due to their indirect influence on speech production.…”

Section: Discussionmentioning

confidence: 99%

Speaker Discrimination Using Long-Term Spectrum of Speech

Sigmund

2019

ITC

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In this article, we investigate a specific long-term speech spectrum with respect to its use for speaker recognition. The long-term effect was satisfied by averaging short-term autocorrelation coefficients over the whole utterance. The long-term spectrum was calculated by means of second-order linear prediction using the average autocorrelation coefficients. First, speaker discriminability of 32 individual parameters was evaluated by combining spectral energy and spectral slope in eight different frequency bands covering the range 0−4 kHz (seven narrow nonoverlapping subbands and one band spanning over the full range). Then, four subbands with the most discriminative capability were selected for speaker recognition. These subbands involve the frequencies of 0−1.2 kHz in total. In the main experiments, text-independent speaker recognition based on relative Euclidean distance was performed in each single subband as well as in multiple 2 to 4 subbands applying two types of speech data, complete continuous speech and voiced part of the same speech. The voiced speech seems to be generally more effective for speaker recognition using the long-term speech spectrum. The best recognition rates, i.e. 91.7% on complete speech and 100% on voiced speech, were achieved in optimal paired subbands. The long-term speech spectrum can complement the traditional voice features.

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“…(48)(49)(50). O parâmetro H1-H2 é a diferença entre os dois primeiros harmônicos e está relacionado ao quociente de abertura das pregas vocais (51)(52)(53). A ênfase espectral é a diferença de intensidade do segmento a ser analisado entre toda a faixa espectral (0 a 11kHz) e a região das baixas frequências e é correlato do esforço vocal (54,55).…”

Section: Médiounclassified

“…GM os valores de jitter e shimmer aumentaram e os valores da PHR diminuíram, o que indica aumento da aperiodicidade e maior presença de ruído, em todos os momentos com exceção do m5, em que ocorreu o inverso, porém sem significância estatística (tabela 6). Outro estudo(20) com cantores não apresentou mudanças estatisticamente significativas nos valores de jitter e shimmer e apresentou diminuição estatisticamente significativa do parâmetro de ruído (glottal to noise excitation) para homens e mulheres.O parâmetro H1-H2 possui correlação positiva com o quociente de abertura das pregas vocais e pode ser relacionado com a soprosidade(51)(52)(53). O valor desse parâmetro pode variar em relação ao gênero musical sendo maior no canto de ópera do que em teatro musical(61).…”

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Efeito imediato do tempo de realização do tubo flexível de látex em cantores amadores

Ripari Bassetto

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Vocal Effects in Military Students Submitted to an Intense Recruit Training: A Pilot Study

Cited by 7 publications

References 22 publications

Systematic Review of Literature on Vocal Demand Response: Understanding Physiology, Measurements, and Associated Factors

Systematic Review of Literature on Vocal Demand Response: Understanding Physiology, Measurements, and Associated Factors

Speaker Discrimination Using Long-Term Spectrum of Speech

Efeito imediato do tempo de realização do tubo flexível de látex em cantores amadores

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