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Academic literature on the topic 'Voice parameters'

Author: Grafiati

Published: 3 June 2025

Last updated: 23 June 2025

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Journal articles on the topic "Voice parameters"

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Mittal, Vikas, and R. K. Sharma. "Classification of Pathological Voices Using Glottal Signal Parameters." Journal of Computational and Theoretical Nanoscience 16, no. 9 (2019): 3999–4002. http://dx.doi.org/10.1166/jctn.2019.8284.

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The discrimination of voice signals has numerous applications in diagnosing of pathologies related to voice. This paper discussed about the glottal signal that is bound to recognize two sorts of voice issue: Laryngitis and Laryngeal dystonia (LD). The parameters of the glottal signal fill in as contribution to classifiers that characterizes into three unique gatherings of speakers: speakers with Laryngitis; with laryngeal dystonia (LD); lastly speakers with healthy voices. The database is made out of voice accounts containing tests of three gatherings. The classifiers SVM provided 60%, KNN provided 70% and Ensemble provided 80% classification accuracy in the case of Laryngitis. Voice signals of patients affected with Laryngeal dystonia were also collected and tested with same classifiers and the Accuracy of 90%, 80% and 50% were obtained with SVM, KNN and Ensemble respectively.

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Krishna, Murari Bansal, and Raj Singh Prithvi. "Development of a Tool to Objectively Identify the Normal Human Voice." International Journal of Toxicological and Pharmacological Research 12, no. 5 (2022): 189–96. https://doi.org/10.5281/zenodo.11902797.

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<strong>Background:  </strong>Acoustic analysis is used to assist in differential diagnosis, documentation, and evaluation of treatment for voice disorders. Clinical data has shown that Jitter, Shimmer, Mean Pitch, and Harmonic Noise Ratio are the indices of voice pathology. A voice with some periodicity can now be analyzed with a computerized acoustic analyzer, a relatively newer technique that can be widely used in clinical practice. Voice is an acoustic output of the vibrations of the vocal folds and is the basic source of speech. In contrast, speech is a meaningful acoustic output created by the modulation of voice by organs of articulation into basic building blocks, the ‘phonemes’. Phonemes help in distinguishing one word from another in a particular language. Some sounds like clicks, whistling, and whispering can be produced by organs of articulations without voice. Because of anatomical, physiological, racial, cultural, and social factors, every human voice is unique and fingerprints is the signature of each individual. <strong>Aim:</strong> To create a database of normal voices, analyze and identify different parameters of these voices and hence identify benchmarks of normal voices. <strong>Material and Method:</strong> The study were conducted in the department of Otolaryngology. Voice samples of 250 normal males and 250 normal females aged between 19 to 30 years were collected using a sustained vowel /a/ which was recorded and analyzed using a freely downloadable software “PRAAT”. The parameters like Jitter, Shimmer, and Pitch were derived, and mean, SD, and range of voice parameters were calculated. The Microphone was held at a distance of 5cm in front of the lips and 3 cm above the breath stream. Each person was first trained to produce sustained vowel /a/ by the examiner herself through utterance of the voice at comfortable loudness and pitch. <strong>Results: </strong>In males, the value of parameters was mean pitch (124.05), jitter (0.011), and shimmer (0.04). In females the parameters were mean pitch (212.27), jitter (0.01), shimmer (0.06). The Pitch in females is consistently higher than in males. Jitter Range is almost the same in both males and females. There is not much difference in Shimmer between Males and Females. <strong>Conclusion: </strong>Voice can be objectively analyzed using Acoustic Parameters like mean Pitch, Jitter, and Shimmer. Most of the studies show that normal voice parameters depend on gender, region, methodology of the voice collection, software and hardware used, different algorithms used for calculations and the setup, etc. Hence every institution should standardize the method of acoustic analysis for its own consumption. For the purpose, we have created a huge database of the voices of normal young adults. Voices can be objectively analyzed using acoustic parameters like mean pitch, jitter, shimmer, and harmonic-to-noise ratio. A large database yields more reliable normative parameters. Institutions should develop their own standard protocol for the selection of subjects, recording of voices, and their analysis.

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Choi, Hee-Jin, and Ji-Yeoun Lee. "Comparative Study between Healthy Young and Elderly Subjects: Higher-Order Statistical Parameters as Indices of Vocal Aging and Sex." Applied Sciences 11, no. 15 (2021): 6966. http://dx.doi.org/10.3390/app11156966.

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The objective of this study was to test higher-order statistical (HOS) parameters for the classification of young and elderly voice signals and identify gender- and age-related differences through HOS analysis. This study was based on data from 116 subjects (58 females and 58 males) extracted from the Saarbruecken voice database. In the gender analysis, the same number of voice samples were analyzed for each sex. Further, we conducted experiments on the voices of elderly people using gender analysis. Finally, we reviewed the standards and reference models to reduce sex and gender bias. The acoustic parameters were extracted from young and elderly voice signals using Praat and a time–frequency analysis program (TF32). Additionally, we investigated the gender- and age-related differences in HOS parameters. Young and elderly voice signals significantly differed in normalized skewness (p = 0.005) in women and normalized kurtosis (p = 0.011) in men. Therefore, normalized skewness is a useful parameter for distinguishing between young and elderly female voices, and normalized kurtosis is essential for distinguishing between young and elderly male voices. We will continue to investigate parameters that represent important information in elderly voice signals.

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Mittal, Vikas, and R. K. Sharma. "Vocal Folds Analysis for Detection and Classification of Voice Disorder." International Journal of E-Health and Medical Communications 12, no. 4 (2021): 97–119. http://dx.doi.org/10.4018/ijehmc.20210701.oa6.

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The detection and description of pathological voice are the most important applications of voice profiling. Currently, techniques like laryngostroboscopy or surgical microlarynoscopy are popularly used for the diagnosis of voice pathologies but are invasive in nature. Disorders of vocal folds impact the quality of voice, and therefore, the accuracy of voice profiling is reduced. This paper presents a better solution to differentiate normal and pathological voices based on the glottal, physical, and acoustic and equivalent electrical parameters. These parameters have been correlated using mathematical equations and models. Results reveal that the glottal flow is strongly influenced by physical parameters like stiffness and viscosity of vocal folds in case of pathological voice. However, their direct measurement requires complex invasive medical procedures or costly and complex electronic hardware arrangements in case of non-invasive methods. Glottal parameters, on the other hand, facilitate much simpler estimation of vocal folds disorders. In this work, the authors have presented two non-invasive approaches for better accuracy and least complexity for differentiating normal and pathological voices: 1) by using correlation of glottal and physical parameters, 2)by using acoustic and equivalent electrical parameters.

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Cistola, Giorgia, Alex Peiró-Lilja, Guillermo Cámbara, Ineke van der Meulen, and Mireia Farrús. "Influence of TTS Systems Performance on Reaction Times in People with Aphasia." Applied Sciences 11, no. 23 (2021): 11320. http://dx.doi.org/10.3390/app112311320.

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Text-to-speech (TTS) systems provide fundamental reading support for people with aphasia and reading difficulties. However, artificial voices are more difficult to process than natural voices. The current study is an extended analysis of the results of a clinical experiment investigating which, among three artificial voices and a digitised human voice, is more suitable for people with aphasia and reading impairments. Such results show that the voice synthesised with Ogmios TTS, a concatenative speech synthesis system, caused significantly slower reaction times than the other three voices used in the experiment. The present study explores whether and what voice quality metrics are linked to delayed reaction times. For this purpose, the voices were analysed using an automatic assessment of intelligibility, naturalness, and jitter and shimmer voice quality parameters. This analysis revealed that Ogmios TTS, in general, performed worse than the other voices in all parameters. These observations could explain the significantly delayed reaction times in people with aphasia and reading impairments when listening to Ogmios TTS and could open up consideration about which TTS to choose for compensative devices for these patients based on the voice analysis of these parameters.

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Ramani, Sai Aishwarya, Eric J. Hunter, and Lady Catherine Cantor Cutiva. "Acoustic speech parameter relationships with voice disorders and phrase differences." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A295. http://dx.doi.org/10.1121/10.0018908.

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While acoustic speech analysis is non-invasive, the utility has been mixed due to the range of voice types. For vocal health practitioners to efficiently and quickly assess and document voice changes, knowing which voice parameter would be sensitive to vocal change is crucial. Using a database of 296 individual voices including 8 voice pathology types and typical voice samples, the sensitivity of a range of acoustic speech parameters to differentiate common voice pathology types was investigated. Both traditional and contemporary acoustic speech metrics were estimated for the samples using a custom MATLAB script and PRAAT (e.g., jitter, shimmer HNR, CPPS, Alpha ratio, PPE). Analysis then evaluate the predictability value of the metrics to discriminate pathology type. From the pool of parameters, 11 were able to identify pathological voices from normal controls and several of the parameters were more sensitive to some pathology. For example, CPPs and jitter values could discriminate neuropathological voices whereas HNR and Shimmer cold discriminate muscle-based pathologies. These results indicate how the sensitivity of acoustic speech metrics to the voice pathology types can allow for the identification of individual metrics (or combinations of metrics) which could be used to track changes in vocal health.

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Mittal, Vikas, and R. K. Sharma. "Electrical Modeling of Two Tube Vocal Tract for Voice Pathology Detection." Sensor Letters 17, no. 12 (2019): 943–46. http://dx.doi.org/10.1166/sl.2019.4168.

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Voice pathology is interrelated to a vocal folds complication, and the vocal tract area which is attached to vocal folds shows a variable shapes in case of voice pathology. This variable shapes are tested to make the division of healthy and pathological voices. So, Length and area of vocal tract are used for finding electrical parameters using transmission line theory by considering the vocal tract as a sequence of tubes. The proposed work is used voice database from the Saarbrucken Voice Database (SVD) and real-time data from the Maharishi Markandeshwar (M.M) hospital, Mullana. The proposed method achieves a higher accuracy of 91.7 percent with electrical parameters compared to 88.2 percent with the acoustic parameters and 85.3 percent with physical parameters in the detection of voice pathology.

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Peterson, K. Linnea, Katherine Verdolini-Marston, Julie M. Barkmeier, and Henry T. Hoffman. "Comparison of Aerodynamic and Electroglottographic Parameters in Evaluating Clinically Relevant Voicing Patterns." Annals of Otology, Rhinology & Laryngology 103, no. 5 (1994): 335–46. http://dx.doi.org/10.1177/000348949410300501.

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The purpose of the present study was to identify one or more aerodynamic or electroglottographic measures that distinguish among voicing patterns that are clinically relevant for nodule pathogenesis and regression: a presumably pathogenic pattern (pressed voice), a neutral pattern (normal voice), and two presumably therapeutic patterns (resonant voice and breathy voice). Trained subjects with normal voices produced several tokens of each voice type on sustained vowels /a/, /i/, and /u/. For each token, maximum flow declination rate, alternating current flow, and minimum flow were obtained from inverse-filtered airflow signals, and closed quotient and closing time were obtained from electroglottographic signals. The results indicate that for /a/ and /i/ (but not for /u/), the closed quotient provides a sensitive tool for distinguishing the voice types in physiologically interpretable directions. Further, post-hoc analyses confirmed a direct relationship between the closed quotient and videoscopic ratings of laryngeal adduction, which previous work links to nodule pathogenesis and regression.

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Šiupšinskienė, Nora, Kęstutis Adamonis, and Robert Toohill. "Usefulness of assessment of voice capabilities in female patients with reflux-related dysphonia." Medicina 45, no. 12 (2009): 978. http://dx.doi.org/10.3390/medicina45120125.

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Objectives. To analyze vocal capabilities in patients diagnosed with reflux related dysphonia versus controls with healthy voice with selection of the most informative discriminating quantitative parameters and to assess voice changes following treatment. Material and methods. Six parameters of voice range profile (VRP) and five parameters of speech range profile were taken and analyzed from 60 dysphonic outpatient females with laryngopharyngeal reflux (LPR) diagnosed by reflux-related atypical and typical symptoms, videolaryngoscopic findings, upper gastrointestinal endoscopy, and positive response to empiric 3-month omeprazole treatment. Seventy-six females with healthy voice served as controls. Results. All six parameters of voice range profile and three of 5 parameters of speech range profile showed significant differences comparing LPR patients with controls before omeprazole treatment (P<0.05). Logistic regression analysis revealed VRP maximum-minimum intensity range to be the most informative parameter for discrimination between reflux-related dysphonic and healthy voices (overall prediction accuracy, 86.8%). A threshold value of significant parameter was stated using the receiver operating characteristic curve. Treatment with omeprazole significantly improved voice quality showing the greatest changes in the mean scores of majority of voice range profile parameters. Conclusions. Vocal capabilities, especially evaluated by voice range profile, are restricted in LPR female patients in comparison to subjects with healthy voice. Quantitative voice assessment with voice range profile may add more objective aspect for screening dysphonia and could be used as a criterion of evaluation of treatment efficacy in such patients.

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Schlegel, Patrick, Kirsten Wong, Mamdouh Aker, Yazeed Alhiyari, and Jennifer Long. "Objective Assessment of Porcine Voice Acoustics for Laryngeal Surgical Modeling." Applied Sciences 11, no. 10 (2021): 4489. http://dx.doi.org/10.3390/app11104489.

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Pigs have become important animal models in voice research. Several objective parameters exist to characterize the pig voice, but it is not clear which of them are sensitive to the impaired voice quality after laryngeal injury or surgery. In order to conduct meaningful voice research in pigs, it is critical to have standard functional voice outcome measures that can distinguish between normal and impaired voices. For this reason, we investigated 17 acoustic parameters before and early after surgery in three Yucatan mini pigs. Four parameters showed consistent changes between pre- and post-surgery recordings, mostly related to decreased spectral energy in higher frequencies after surgery. We recommend two of these, 50% spectral energy quartile (Q50) and Flux, for objective functional voice assessment of pigs undergoing laryngeal surgery. The long-term goal of this process is to enable quantitative voice outcome tracking of laryngeal surgical interventions in porcine models.

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Dissertations / Theses on the topic "Voice parameters"

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Neocleous, Andreas. "Speaker verification using voice source parameters." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393665.

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Kramer, Elena [Verfasser]. "Predicting perceptual voice quality from objective voice parameters in dysphonic patients / Elena Kramer." Lübeck : Zentrale Hochschulbibliothek Lübeck, 2013. http://d-nb.info/1029994641/34.

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Schlegel, Patrick [Verfasser]. "Assessment of clinical voice parameters and parameter reduction using supervised learning approaches / Patrick Schlegel." Düren : Shaker, 2020. http://d-nb.info/1213473071/34.

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SANTOS, ALEXANDRE FERREIRA DOS. "ASSESSMENT OF QOS PARAMETERS IN VOICE OVER IP TRANSMISSION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5243@1.

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Este trabalho apresenta um estudo visando a estabelecer uma metodologia para dimensionamento de um sistema VoIP, focalizando, em particular, o dimensionamento de um multiplexador estatístico. Procuramos aplicar modelos e resultados existentes para o problema geral do multiplexador estatístico ao caso específico de um sistema VoIP, levando em conta as características do tráfego, os requisitos de QoS e os princípios das arquiteturas Intserv e Diffserv. Para isto, apresentamos um resumo da tecnologia VoIP, incluindo seus requisitos de qualidade e os protocolos apropriados para transportar este tipo de mídia na Internet. Discorremos sobre os mecanismos de controle de tráfego usuais em redes de pacotes com QoS, assim como sobre as Arquiteturas de QoS definidas pelo IETF . É apresentada uma revisão de modelos de tráfego e modelos aplicáveis à análise de multiplexadores estatísticos, com destaque para o chamado modelo fluido aplicado à descrição do tráfego gerado por um agregado homogêneo de fontes de voz, além de um estudo comparativo entre respostas obtidas analiticamente com aquelas obtidas por meio de simulação. A influência do tipo de codificador e de parâmetros como tamanho de pacote é investigada, mostrando-se a dificuldade em se dispor de um modelo analítico capaz de levar em conta, de forma precisa, os diferentes formatos do sistema VoIP. Por fim, estabelece-se um cenário para aplicação dos modelos a um sistema VoIP.<br>This work presents a study aiming at to establish a methodology for sizing a VoIP system, focusing, in particular, the sizing of a statistical multiplexer. We apply existing models and results for the general problem of the statistical multiplexer to the specific case of a VoIP system, taking in account the characteristics of the traffic, the requirements of QoS and the principles of the architectures Intserv and Diffserv. For this, we present a summary of the VoIP technology, including its requirements of quality and the protocols appropriate to carry this type of media in the Internet. We discourse on the usual mechanisms of traffic control in packet networks with QoS, as well as on the Architectures of QoS defined by the IETF. A revision of traffic models and applicable models to the analysis of statistical multiplexers, with prominence for the fluid model applied to the description of the traffic generated for a homogeneous aggregate of voice sources, is presented. Besisdes, a comparative study of behavior gotten analytically with those gotten by means of simulation is made. The influence of the coder and parameters as so packet size is investigated, revealing the difficulty in finding an analytical model capable to take in account, with precision, the different formats of the VoIP system. Finally, we establish a scenario for application of the models to a VoIP system.

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Sayles, Claire Lindsey. "The Effects of Vocal Function Exercises on Aerodynamic Parameters for Children Receiving Voice Lessons." Miami University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1050517336.

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Cadesky, Nadine Elizabeth. "Music Therapists' Perspectives on the Assessment and Clinical Interpretation of Clients' Vocal Parameters." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/216567.

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Music Therapy<br>Ph.D.<br>The purpose of this study was to investigate North American professional music therapists' perceptions and use of singing voice assessment. The focus was on a general population of music therapists who may or may not specialize in the use of singing as a clinical instrument. The researcher designed an online survey to gather music therapists' perceptions about the frequency with which they use singing voice assessment with clients, the singing voice parameters they assess and the clinical interpretations they make. Participants' demographic information was gathered and analyzed according to their responses. It was expected that these therapists would vary in their training and education, singing background and clinical context. Three hundred and thirty-five North American music therapists with a music therapist-accredited (MTA) or music therapist-board-certified (MT-BC) designation participated in the study, for an overall response rate of 13.9%. Results were analyzed using frequencies, proportions indicating association with Wilson Confidence Limits, Logistic Regression Models, Firth's Estimation, Tukey-Kramer adjusted-p levels and 95% confidence limits. Results indicated that a majority of participants assessed client singing at the beginning of therapy and periodically or regularly afterwards, paying attention to singing voice parameters of breathing and breath-support, freedom versus tension, vocal range, vocal tone quality, and/or pitch control. Results also indicated that a majority of participants used one or more of these parameters as a basis for interpretations about affect, personality characteristics, internal psychological processes, developmental stage, and/or psychopathological states. There were statistically-significant associations between therapists' primary clinical population and frequency of singing voice assessment performed; therapists' primary clinical population and singing voice parameters assessed; and therapists' primary theoretical orientation and singing voice parameters assessed. Results of this study suggest that music therapists in this sample were assessing and interpreting client singing even if some of these therapists had no specialized advanced training in the clinical assessment and interpretation of singing. Furthermore, it appears that music therapists in this study were paying attention to the same kinds of vocal parameters and made the same kinds of clinical interpretations as those featured in the clinical literature. Finally, it appears that voice assessment is not associated with a particular population. Future research should explore the impact of a client and therapist's background with singing on the clinical singing voice assessment. Future research should also explore the role singing voice assessment may play in different clinical contexts and the differential meanings that may be gleaned in these different contexts. There is also evidence within to support future development and validation of a vocal assessment tool.<br>Temple University--Theses

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CASTELLANA, ANTONELLA. "Towards vocal-behaviour and vocal-health assessment using distributions of acoustic parameters." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2705908.

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Voice disorders at different levels are affecting those professional categories that make use of voice in a sustained way and for prolonged periods of time, the so-called occupational voice users. In-field voice monitoring is needed to investigate voice behaviour and vocal health status during everyday activities and to highlight work-related risk factors. The overall aim of this thesis is to contribute to the identification of tools, procedures and requirements related to the voice acoustic analysis as objective measure to prevent voice disorders, but also to assess them and furnish proof of outcomes during voice therapy. The first part of this thesis includes studies on vocal-load related parameters. Experiments were performed both in-field and in laboratory. A one-school year longitudinal study of teachers’ voice use during working hours was performed in high school classrooms using a voice analyzer equipped with a contact sensor; further measurements took place in the semi-anechoic and reverberant rooms of the National Institute of Metrological Research (I.N.Ri.M.) in Torino (Italy) for investigating the effects of very low and excessive reverberation in speech intensity, using both microphones in air and contact sensors. Within this framework, the contributions of the sound pressure level (SPL) uncertainty estimation using different devices were also assessed with proper experiments. Teachers adjusted their voice significantly with noise and reverberation, both at the beginning and at the end of the school year. Moreover, teachers who worked in the worst acoustic conditions showed higher SPLs and a worse vocal health status at the end of the school year. The minimum value of speech SPL was found for teachers in classrooms with a reverberation time of about 0.8 s. Participants involved into the in-laboratory experiments significantly increased their speech intensity of about 2.0 dB in the semi-anechoic room compared with the reverberant room, when describing a map. Such results are related to the speech monitorings performed with the vocal analyzer, whose uncertainty estimation for SPL differences resulted of about 1 dB. The second part of this thesis was addressed to vocal health and voice quality assessment using different speech materials and devices. Experiments were performed in clinics, in collaboration with the Department of Surgical Sciences of Università di Torino (Italy) and the Department of Clinical Science, Intervention and Technology of Karolinska Institutet in Stockholm (Sweden). Individual distributions of Cepstral Peak Prominence Smoothed (CPPS) from voluntary patients and control subjects were investigated in sustained vowels, reading, free speech and excerpted vowels from continuous speech, which were acquired with microphones in air and contact sensors. The main influence quantities of the estimated cepstral parameters were also identified, which are the fundamental frequency of the vocalization and the broadband noise superimposed to the signal. In addition, the reliability of CPPS estimation with respect to the frequency content of the vocal spectrum was evaluated, which is mainly dependent on the bandwidth of the measuring chain used to acquire the vocal signal. Regarding the speech materials acquired with the microphone in air, the 5th percentile resulted the best statistic for CPPS distributions that can discriminate healthy and unhealthy voices in sustained vowels, while the 95th percentile was the best in both reading and free speech tasks. The discrimination thresholds were 15 dB (95\% Confidence Interval, CI, of 0.7 dB) and 18 dB (95\% CI of 0.6 dB), respectively, where lower values indicate a high probability to have unhealthy voice. Preliminary outcomes on excerpted vowels from continuous speech stated that a CPPS mean value lower than 14 dB designates pathological voices. CPPS distributions were also effective as proof of outcomes after interventions, e.g. voice therapy and phonosurgery. Concerning the speech materials acquired with the electret contact sensor, a reasonable discrimination power was only obtained in the case of sustained vowel, where the standard deviation of CPPS distribution higher than 1.1 dB (95\% CI of 0.2 dB) indicates a high probability to have unhealthy voice. Further results indicated that a reliable estimation of CPPS parameters is obtained provided that the frequency content of the spectrum is not lower than 5 kHz: such outcome provides a guideline on the bandwidth of the measuring chain used to acquire the vocal signal.

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Niemelä, Markus. "Estimating Internet-scale Quality of Service Parameters for VoIP." Thesis, Linköpings universitet, Programvara och system, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-127360.

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With the rising popularity of Voice over IP (VoIP) services, understanding the effects of a global network on Quality of Service is critical for the providers of VoIP applications. This thesis builds on a model that analyzes the round trip time, packet delay jitter, and packet loss between endpoints on an Autonomous System (AS) level, extending it by mapping AS pairs onto an Internet topology. This model is used to produce a mean opinion score estimate. The mapping is introduced to reduce the size of the problem in order to improve computation times and improve accuracy of estimates. The results of testing show that estimating mean opinion score from this model is not desirable. It also shows that the path mapping does not affect accuracy, but does improve computation times as the input data grows in volume.

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Asaid, Dina, and Sofia Erenmalm. "Logopeders bedömarreliabilitet vid perceptuell röstanalys av utvalda röstexempel : en början till ett referensröstmaterial." Thesis, Linköpings universitet, Logopedi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-76308.

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Vid användning av audio-perceptuell röstanalys för framtagning av referensröster är begreppet reliabilitet av central betydelse. Syftet med denna uppsats var att undersöka reliabiliteten mellan erfarna röstlogopeders perceptuella röstanalys av ett antal utvalda röstexempel. Förhoppningen var att utifrån detta kunna sammanställa en början till ett referensröstmaterial bestående av manliga och kvinnliga referensröster representativa för olika parametrar i SVEA-protokollet. De specifika frågeställningarna var: Hur samstämmiga i perceptuell röstanalys är bedömarna kring de valda röstexemplens olika parametrar? Är någon eller några av de parametrar som bedömarna är överens om extra framträdande i någon röst så att denna röst kan användas som referensröst? Utifrån en databas med 65 röstinspelningar valdes 15 röstexempel ut av författarna att skattas av sju erfarna logopeder med SVEA-protokollet. En andra bedömningsomgång genomfördes med tre röstexempel slumpvis utvalda från de 15 röstexemplen i den första bedömningsomgången. Statistiska analyser av logopedernas inter- och intrabedömarreliabilitet gjordes både på alla röstexempel och på samtliga kvalitetsparametrar. Bedömarnas skattningar uppvisade mycket stor spridning i flera röstexempel, vilket inverkade på korrelationernas utfall och kan vid en första anblick ge ett missvisande resultat. En djupare analys av bedömarnas skattningar av enskilda röstparametrar visade på betydligt högre samstämmighet. Utifrån detta resultat tog författarna fram tre potentiella referensröster. Flera av de övriga 12 röstexemplen hade relativt hög interbedömarreliabilitet men då skattningsvärdena var så pass låga för dessa röster valdes de inte ut som referensröster. Trots låga skattningsvärden skulle dessa röstexempel kunna användas som referensröster för att exemplifiera lägre grader av avvikelser. Slutsatsen är att det finns skillnader i hur bedömarna skattat röstexemplen i denna studie och reliabiliteten mellan bedömarna skiftar. Författarna drar även slutsatsen att det är motiverat att fortsätta leta och analysera röstexempel för att få en heltäckande uppsättning referensröster. Metodvalet i denna studie anses vara en framkomlig väg för att fortsätta forma detta referensröstmaterial.<br>Interrater and intrarater reliability are of great importance in the selection of reference voice examples. The purpose of this study is to investigate the reliability of experienced speech and language pathologists’ evaluations of selected voice samples. The aim is to begin a collection of male and female reference voice examples which represent different voice quality parameters according to the Stockholm Voice Evaluation Approach (SVEA). The specific questions are: How well do speech and language pathologists agree when rating voices along different voice quality parameters? Are any of the voice quality parameters in the speech samples prominent enough to be qualified as reference voice examples? The authors selected 15 voice samples out of a database consisting of 65 voice samples. The voices were evaluated by seven experienced speech and language pathologists using the SVEA protocol. The results were statistically analyzed to study interrater reliability. In order to investigate intrarater reliability a second evaluation session was carried out in which the speech and language pathologists evaluated three voice samples randomly selected from the 15 samples used in the first evaluation session. The results showed a wide range in the raters’ evaluations, which had an impact on the correlations. However, a closer look at separate parameters indicated considerably higher similarity in the ratings. Based on these results three reference voice examples were selected. Even though high correlation values were found in several of the other twelve voice samples, the ratings in these were not high enough to qualify them as reference voice examples in this study. Nevertheless, these voices can still be used to exemplify various degrees of deviation. The conclusions are that there is a great variation regarding reliability between and within raters and also regarding how the different speech and language pathologists rate the voices. The authors also conclude that the search for clear reference voice examples is highly motivated and ought to be continued, preferably with the method used in this study.

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Degottex, Gilles. "Glottal source and vocal-tract separation : estimation of glottal parameters, voice transformation and synthesis using a glottal model." Paris 6, 2010. http://www.theses.fr/2010PA066399.

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Cette étude s'intéresse au problème de l'inversion d'un modèle de production de la voix étant donné un enregistrement audio de parole pour obtenir une représentation de le source sonore qui est générée au niveau de la glotte, la source glottique, ainsi qu'un représentation des résonances et anti-résonances créées par les cavités du conduit vocal. Cette séparation des éléments composants la voix donne la possibilité de manipuler indépendamment les caractéristiques de la source et le timbre des résonances. Nous supposons que la source glottique est un signal à phase mixte et que la réponse impulsionnelle du filtre du conduit vocal est un signal à minimum de phase. Puis, considérant ces propriétés, différentes méthodes sont proposées pour estimer les paramètres d'un modèle glottique qui minimisent la phase carrée moyenne du résiduel convolutif d'un spectre de parole observé et de son modèle. Une dernière méthode est décrite où un unique paramètre de forme est solution d'une forme quasi fermée du spectre observé. Ces méthodes sont évaluées et comparées avec des méthodes de l'état de l'art en utilisant des signaux synthétiques et electro-glotto-graphiques. Nous proposons également une procédure d'analyse/synthèse qui estime le filtre du conduit vocal en utilisant un spectre observé et sa source estimée. Des tests de préférences ont été menés et leurs résultats sont présentés dans cette étude pour comparer la procédure décrite et d'autres méthodes existantes.

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Books on the topic "Voice parameters"

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Syntax of Spanish Reflexive Verbs: The Parameters of the Middle Voice. De Gruyter, Inc., 2014.

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Wampler, Brian, and Michael Touchton. Voice in Local Development. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780198930624.001.0001.

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Abstract Many governments in semi-democratic regimes have adopted participatory democratic institutions to promote development and accountability. But limited resources, weak civil society, and a history of authoritarian politics make building subnational democratic institutions daunting. Our book addresses several important questions surrounding participatory democratic institutions: Do participatory institutions expand accountability, empower citizens, and advance development in these environments? We address these questions by evaluating citizen decision-making in Kenya’s participatory budgeting processes. We administered a survey with embedded experiments surrounding citizens’ development policy preferences to over 11,000 respondents in five Kenyan counties. We also collect parallel qualitative data through participant observation and over eighty elite interviews. We find limited evidence for transformative change from Kenyan Participatory Budgeting (PB), a set of programs that feature participant selection of development projects that governments implement. These programmes, at best, lay only minimal foundations for governance, accountability, and democracy. We develop three lines of reasoning to explain why Kenyan PB programmes produce relatively limited change and function more like participatory clientelism than co-governing venues: Kenya’s local sociopolitical context, the adaptation of PB’s internal rules, and shifts in the key PB actors combine to produce much different outcomes than those in Brazil and other places that adopted PB. We then show how specific changes in the sociopolitical context (e.g., uncompetitive local elections and party systems, fragmented local civil society, and a weak local state) contribute to relatively weak PB programmes. Finally, we help policymakers by redefining the parameters of the types of outcomes that are likely to emerge from new PB programmes, when, where, and for whom.

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Harley, Heidi. The “bundling” hypothesis and the disparate functions of little v. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198767886.003.0001.

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Following Pylkkänen (2002), among others, many of the functions of the vP have been distributed between two independent projections: VoiceP and vP. Pylkkänen proposed a “bundling” parameter: some languages project a single bundled Voice/vP, and all functions depend on that single projection, and others project VoiceP and vP separately, and functions are distributed. The chapter first reviews the roles ascribed to these projections: (i) external argument introduction, (ii) event argument introduction, (iii) accusative case checking, (iv) introduction of causative or inchoative semantics, (v) verbalizing of nonverbal material, and (vi) demarcating a cycle. The chapter then reviews support for Pylkkänen’s parametric view of Voice-bundling from, e.g., Hiaki, Turkish, Korean, and English. Results on causatives from Key (2013) and Jung (2014) suggest that the projection sequence dominating v may form part of a predetermined projection hierarchy. The constraint against stacking productive morphological causatives may thus be attributed to the extended verbal projection.

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Carvalho, Régis de. A voz de cabeça na voz de barítono. Editora ARtemis, 2022. http://dx.doi.org/10.37572/edart_100522538.

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This book has a very specific target audience: singers and teachers in the vocal field. As a result of his experience as a singing teacher and researcher, he presents readers with an alternative vocal training model aimed at working the high region of male medium voices. To follow this path, we approached issues such as the main common technical difficulties encountered by baritones, aspects of vocal classification, aspirated vocal parameters and vocal physiology. Finally, we discussed possible signs of effectiveness of using a vocalize model that works with falsetto emission to facilitate access to head register notes in male middle voices.

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Lawlor, Hannie. Relational Responses to Trauma in Twenty-First-Century French and Spanish Women's Writing. Oxford University PressOxford, 2024. http://dx.doi.org/10.1093/9780198916765.001.0001.

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Abstract Relational Responses to Trauma in Twenty-First-Century French and Spanish Women’s Writing offers new insight into what it means to write relational lives. It broadens the parameters of existing discussions in terms of geography as well as genre, drawing together two literatures whose prominence in life-writing theory to date could hardly be more different: while French women’s writing has long been at the centre of international discussions of autobiography, the relative invisibility of Spanish women’s writing remains striking. The dialogue that thus underpins this study, between diverse twenty-first-century case studies and broader approaches to life writing, shines a light on what is gained from inviting different voices into the discussion. These narrative projects challenge long-standing critical assumptions in autobiography studies and trauma theory about how writers can and should represent the multiple perspectives that are at the heart of intergenerational stories. In exploring the narrative solutions that these texts propose in response to the ethical questions they navigate, Relational Responses shows that writing relational lives rests on far more than the mere recounting of a shared history. ‘Relating’ in these texts, it proposes, is an act embedded in the telling of the story. It is a mode of testifying together to traumatic experience, one that reveals a powerful preoccupation in contemporary women’s life-writing practice with making space for the many voices and versions that otherwise go unheard.

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Feinstein, Amy. Gertrude Stein and the Making of Jewish Modernism. University Press of Florida, 2020. http://dx.doi.org/10.5744/florida/9780813066318.001.0001.

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Gertrude Stein and the Making of Jewish Modernism illuminates the idiosyncratic Jewish lexicon Gertrude Stein marshalled to associate modernism with Jewishness. Bridging modernist studies, Jewish studies, and the study of American literature, it establishes this inveterate experimenter as one of the premier Jewish modernists. Using archival research that radically changes our understanding of Stein’s oeuvre, Feinstein argues that an interest in Jewish nature was central to the many experiments in genre and style throughout Stein’s career. Although Stein explicitly discusses Jews in early scholastic writings and notebooks, she ceases to write openly about Jews in her first fictions and the epic novel The Making of Americans. Instead, melding tradition and innovation, her protagonists are figuratively Jewish and modern. Stein derived these solely metaphorical depictions of Jewish identity from Matthew Arnold’s notions of Hebraism and Hellenism, a debt never before recognized. Later, Stein returns to an explicit Jewish vocabulary in her enigmatic “voices” writings to examine marriage, diplomacy, and Zionism. Finally, in compositions written in Vichy France, where decrees were narrowly defining the parameters of French and Jewish identities, Stein rebelliously Judaizes the experience of occupation. The conclusion rebuts recent claims of Stein’s collaboration by examining her anti-Hitlerian writings and wartime contributions to journals of the intellectual resistance.

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Briggs, Jonathyne. Perpetual Children. Oxford University PressNew York, NY, 2025. https://doi.org/10.1093/9780197683002.001.0001.

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Abstract Perpetual Children is a narrative history of debates over the definition and appropriate treatment of autism in France since 1950, noting the French divergence from psychological norms in the rest of the world. Examining the works of psychoanalysts, the activities of parents’ associations, and the efforts of autistic self-advocates, Perpetual Children argues that the consistent framing of autism as a form of childhood psychosis marginalized autistic persons and emphasized the voices of parents and professionals. This framing also justified the continued use of psychoanalysis as an intervention because of the placement of autism within the family dynamic. Even as research in the United States pointed to biological and neurological conceptions of autism, the French continued to support a psychogenic origin for the disorder, impacting state policy and medical norms for decades. This position energized conflict between professionals and parents concerning expertise, leading to political and legal changes at the end of the twentieth century. By the twenty-first century, the French autistic population entered the debate to transform its parameters and assert their own position as experts on autism, reconceiving the disorder outside childhood to a limited degree. Perpetual Children reveals the international dimension of the story of autism and how the French context provides a different perspective on its history.

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Jiang, Tao. Origins of Moral-Political Philosophy in Early China. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197603475.001.0001.

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This book offers a new narrative and interpretative framework about the origins of moral-political philosophy that tracks how the three core values—humaneness, justice, and personal freedom—were formulated, reformulated, and contested by early Chinese philosophers in their effort to negotiate the relationship among three distinct domains, the personal, the familial, and the political. Such efforts took place as those thinkers were reimagining a new moral-political order, debating its guiding norms, and exploring possible sources within the context of an evolving understanding of Heaven and its relationship with humans. It makes three key points. First, the central intellectual challenge during the Chinese classical period was how to negotiate the relationships between the personal, the familial, and the political domains (or between the private and the public) when philosophers were reimagining and reconceptualizing a new moral-political order, due to the collapse of the old order. Second, the competing visions can be characterized as a contestation between partialist humaneness and impartialist justice as the guiding norm for the newly imagined moral-political order, with the Confucians, the Mohists, the Laoists, and the so-called fajia thinkers being the major participants, constituting the mainstream intellectual project during this period. Third, Zhuangzi and the Zhuangists were the outliers of the mainstream moral-political debate who rejected the very parameter of humaneness versus justice in the mainstream discourse. Zhuangzi and the Zhuangists were a lone voice advocating personal freedom. For them, the mainstream debate about humaneness and justice was intellectually banal, morally misguided, and politically dangerous.

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Book chapters on the topic "Voice parameters"

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Singh, Rita. "Relations Between Voice and Profile Parameters." In Profiling Humans from their Voice. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8403-5_3.

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Mushaben, Joyce Marie. "Exit, Voice, and Loyalty: The Theoretical Parameters." In What Remains? Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18888-6_2.

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Yamanaka, Kimihiro. "Emotion Estimating Method by Using Voice and Facial Expression Parameters." In Computer Information Systems and Industrial Management. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-84340-3_18.

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Forero Mendoza, Leonardo Alfredo, Edson Cataldo, Marley Vellasco, and Marco Silva. "Classification of Voice Aging Using Parameters Extracted from the Glottal Signal." In Artificial Neural Networks – ICANN 2010. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15825-4_20.

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Pawelec, Łukasz, Anna Lipowicz, Mirosław Czak, and Andrzej W. Mitas. "The Microphone Type and Voice Acoustic Parameters Values – A Comparative Study." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09135-3_35.

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Chen, Xian-tong, and Ling-hua Zhang. "Voice Conversion Based on Radial Basic Function Network and Joint Spectral Parameters." In Proceedings of the 6th International Asia Conference on Industrial Engineering and Management Innovation. Atlantis Press, 2015. http://dx.doi.org/10.2991/978-94-6239-148-2_103.

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Zhang, Lili, Ruben Mukherjee, Piyush Wadhai, Willie Muehlhausen, and Tomas Ward. "Computational Phenotyping of Decision-Making over Voice Interfaces." In Communications in Computer and Information Science. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-26438-2_37.

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AbstractResearch on human reinforcement learning and decision-making behaviour has traditionally used visual-based symbols and graphics in the experimental paradigms. Such research leads to improved understanding of human decision-making and has application in fundamental research in cognitive neuroscience. In clinical domains, the approach holds out the possibility for the development of computationally-derived biomarkers suitable for use in psychiatry. Scaling this experimental approach through pervasive computing can help create larger datasets which will be necessary for normative studies. This will require the expansion of these experimental approaches beyond conventional visual representations. People receive information and interact with their environments through various senses. In particular, our sense of hearing in conjunction with speech represents a ubiquitous modality for learning and for updating our knowledge of the world. Consequently, it represents an important path for the investigation of human decision-making which is now experimentally accessible via rapid advances in voice-enabled intelligent personal assistants (IPAs). Examples include Amazon’s Alexa technology and Google’s Voice Assistant. However, to date no studies have demonstrated the feasibility of delivering such experimental paradigms over such voice technologies. Consequently in this study, we compared the performance of the same group of participants on the traditional visual-based and for the first time, a conversational voice-based, two-armed bandit task. Reinforcement learning models were fitted to the data to represent the characteristics of the underlying cognitive mechanisms in the task. Both model-independent behavioural measures and model-derived parameters were compared. The results suggest that participants demonstrated higher shifting rates in the voice-based version of the task. The computational modelling analysis revealed that participants adopted similar learning rates under the two versions of the interfaces, but more decision noise was introduced in the voice-based task as reflected by the decreased value of the inverse temperature parameter. We suggest that the elevated shifting rate is derived from the increased noise in the voice interface instead of a change in the learning strategy of the participants. Higher intensity of the control adjustments (click touch versus speak) might be one of the sources of noise, thus it is important to think further regarding the design of the voice interface if we wish to apply voice-enabled IPAs to measure human decision-making in their daily environments in the future.

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Tulics, Miklós Gábriel, Ferenc Kazinczi, and Klára Vicsi. "Statistical Analysis of Acoustical Parameters in the Voice of Children with Juvenile Dysphonia." In Speech and Computer. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43958-7_81.

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André, Débora Cucubica, Paula Odete Fernandes, and João Paulo Teixeira. "Statistical Analysis of Voice Parameters in Healthy Subjects and with Vocal Pathologies - HNR." In Communications in Computer and Information Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-23236-7_13.

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Kirichek, R., M. Makolkina, J. Sene, and V. Takhtuev. "Estimation Quality Parameters of Transferring Image and Voice Data over ZigBee in Transparent Mode." In Communications in Computer and Information Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30843-2_27.

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Conference papers on the topic "Voice parameters"

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Anjos de Oliveira, Alessa, Maria Dajer, Paula Fernandes, and João Teixeira. "Clustering of Voice Pathologies based on Sustained Voice Parameters." In 13th International Conference on Bio-inspired Systems and Signal Processing. SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0009146202800287.

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Anjos de Oliveira, Alessa, Maria Dajer, Paula Fernandes, and João Teixeira. "Clustering of Voice Pathologies based on Sustained Voice Parameters." In 13th International Conference on Bio-inspired Systems and Signal Processing. SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0009146200002513.

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Cantor-Cutiva, L. C., E. J. Hunter, and A. Ramani. "Can different voice acoustic parameters predict better voice pathology types?" In 10th Convention of the European Acoustics Association Forum Acusticum 2023. European Acoustics Association, 2022. http://dx.doi.org/10.61782/fa.2023.1188.

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Polrolniczak, Edward, and Michal Kramarczyk. "Estimation of singing voice types based on voice parameters analysis." In 2017 Signal Processing: Algorithms, Architectures, Arrangements and Applications (SPA). IEEE, 2017. http://dx.doi.org/10.23919/spa.2017.8166839.

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Strik, Helmer, and Louis Boves. "Automatic estimation of voice source parameters." In 3rd International Conference on Spoken Language Processing (ICSLP 1994). ISCA, 1994. http://dx.doi.org/10.21437/icslp.1994-42.

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VINOD, HEERA, R. K. SHARMA, and RAHUL SHANDILYA. "Dysphonic Voice detection using MDVP Parameters." In 2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS). IEEE, 2018. http://dx.doi.org/10.1109/sceecs.2018.8546882.

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Al-nasheri, Ahmed, Zulfiqar Ali, Ghulam Muhammad, et al. "Voice pathology detection with MDVP parameters using Arabic voice pathology database." In 2015 5th National Symposium on Information Technology: Towards New Smart World (NSITNSW). IEEE, 2015. http://dx.doi.org/10.1109/nsitnsw.2015.7176431.

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Fant, Gunnar, Anita Kruckenberg, Johan Liljencrants, and Mats Bavegdrd. "Voice source parameters in continuous speech, transformation of LF-parameters." In 3rd International Conference on Spoken Language Processing (ICSLP 1994). ISCA, 1994. http://dx.doi.org/10.21437/icslp.1994-377.

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Borovikova, Darya V., and Vladimir K. Makukha. "Comparative analysis of acoustic voice-quality parameters." In 2015 16th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM). IEEE, 2015. http://dx.doi.org/10.1109/edm.2015.7184606.

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Clapham, Renee P., Corina J. Van As-Brooks, Michiel W. M. Van den Brekel, Frans J. M. Hilgers, and Rob J. J. H. Van Son. "Automatic tracheoesophageal voice typing using acoustic parameters." In Interspeech 2013. ISCA, 2013. http://dx.doi.org/10.21437/interspeech.2013-511.

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Reports on the topic "Voice parameters"

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Mathers, Barbara. A study of the perceptual parameters of voice in aging females. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.2860.

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Meeker, Jessica. Mutual Learning for Policy Impact: Insights from CORE. Sharing Experience and Learning on Approaches to Influence Policy and Practice. Institute of Development Studies (IDS), 2021. http://dx.doi.org/10.19088/core.2021.005.

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On 23 June 2021, Southern Voice and the Institute of Development Studies co-hosted an online dialogue which aimed to enhance efforts to inform and influence policy by sharing learning between CORE projects, at different stages in their policy engagement activities, on their approaches and experiences at sub-national, national, and regional levels. The event was attended by over 70 participants from across the CORE cohort and highlighted the experiences of CORE partners, Partnership for Economic Policy (PEP), International Centre for Research on Women (ICRW), and Group for the Analysis of Development (GRADE). This learning guide captures the practical insights and advice from the event to help inform the practice of both participants and other projects across the portfolio. The guide is structured around the key challenges identified in influencing policy, particularly within the changing parameters of the current pandemic, highlighting key messages and examples from the three partners.

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