Folia Phoniatrica et Logopaedica最新文献

{"title":"Preliminary Investigation of Context-Aware Augmentative and Alternative Communication with Automated Just-in-Time Cloze Phrase Response Options for Social Participation from Children on the Autism Spectrum.","authors":"Christine Holyfield, Tara O'Neill Zimmerman, Stephen MacNeil, Nicolette Sammarco Caldwell, Parth Patel, Brenna Griffen, Elizabeth Lorah, Eduard Dragut, Slobodan Vucetic","doi":"10.1159/000542304","DOIUrl":"10.1159/000542304","url":null,"abstract":"<p><strong>Introduction: </strong>Social participation for emerging symbolic communicators on the autism spectrum is often restricted. This is due in part to the time and effort required for both children and partners to use traditional augmentative and alternative communication (AAC) technologies during fast-paced social routines. Innovations in artificial intelligence provide the potential for context-aware AAC technology that can provide just-in-time communication options based on linguistic input from partners to minimize the time and effort needed to use AAC technologies for social participation.</p><p><strong>Methods: </strong>This preliminary study used an alternating treatment design to compare the effects of a context-aware AAC prototype with automated cloze phrase response options to traditional AAC for supporting three young children who were emerging symbolic communicators on the autism spectrum in participating within a social routine.</p><p><strong>Results: </strong>Visual analysis and effect size estimates suggest the context-aware AAC condition resulted in increases in linguistic participation, vocal approximations, and visual attention for all three children.</p><p><strong>Conclusion: </strong>While this study was only an initial exploration and results are preliminary, context-aware AAC technologies have the potential to enhance participation and communication outcomes for young emerging symbolic communicators on the autism spectrum and more research is needed.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-15"},"PeriodicalIF":1.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Relationship between Traditional Acoustic Measures and Cepstral Analysis of Voice.","authors":"Saeed Saeedi, Mahshid Aghajanzadeh, Seyyedeh Maryam Khoddami, Payman Dabirmoghaddam, Shohreh Jalaie, Samira Aghadoost","doi":"10.1159/000542063","DOIUrl":"10.1159/000542063","url":null,"abstract":"<p><strong>Introduction: </strong>In this study, the correlations between traditional acoustic measures (TAMs) and cepstral analysis (CA) were explored in Persian.</p><p><strong>Methods: </strong>This investigation was a cross-sectional study including 179 dysphonic (n = 141) and normophonic (n = 38) speakers. The TAMs (jitter, shimmer, and noise-to-harmonic ratio) and CA (cepstral peak prominence and cepstral peak prominence smoothed) values were obtained during vowel prolongation, reading a standard sentence, and a nonstandard running speech sample using Praat software. The difference of acoustic measures between normophonic and dysphonic speakers and intercorrelation among acoustic measures and correlation between the acoustic measures and perceived dysphonia levels were analyzed with independent t test, Mann-Whitney U test, Pearson, Spearman, and Kendall's Tau-b correlation tests using IBM SPSS Statistics.</p><p><strong>Results: </strong>The findings showed that dysphonic speakers had higher TAM values and lower CA values than normophonic speakers (p < 0.05). In dysphonic speakers, a large correlation was discovered among all acoustic measurements (r = 0.52-0.96; p < 0.05), while in various perceived dysphonic speakers, there was a correlation of varying strength (r = 0.25-0.97; p < 0.05). Ultimately, there was a significant small-to-large correlation between the acoustic measures and perceived dysphonia levels (r = 0.34-0.58; p < 0.05).</p><p><strong>Conclusion: </strong>This research demonstrated that Persian speakers with dysphonia experienced a rise in TAM and a corresponding reduction in CA. In the future, multi-parametric indices can be developed using both TAM and CA to include various aspects of vocal production and yield a single, comprehensive value.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-13"},"PeriodicalIF":1.1,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142461310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cross-Linguistic Nasalance Comparisons: A Review of Speech Sample Sets and Preliminary Consideration of Effect of Lexical Tone.","authors":"Joanna Hoi-Man She, Emily See-Man Ching, Wilson Shing Yu, Kathy Yuet-Sheung Lee, Michael Chi-Fai Tong, Valerie J Pereira","doi":"10.1159/000541513","DOIUrl":"10.1159/000541513","url":null,"abstract":"<p><strong>Introduction: </strong>Nasalance is an acoustic representation of perceived nasality with proven clinical and research utility. Its validity is contingent on appropriate speech sample sets and distinct normative databases based on known impact factors such as language and phonetic environment, but little is known about the potential effects of lexical tone on nasalance. Its use in international cross-linguistic studies necessitates definition and added considerations of speech sampling protocol.</p><p><strong>Methods: </strong>Part I: a methodological review was undertaken using PRISMA (2020), the Scottish Intercollegiate Guidelines Network (SIGN) Methodology Checklist for evaluating the risk of bias, and calculation of effect sizes and/or visual displays using tables showing the grouping of similar data for the synthesis of findings. Part II: a pilot study explored the effect of lexical tone on nasalance in Cantonese, a lexical tone language.</p><p><strong>Results: </strong>Part I: a total of 17 studies met the inclusion criteria. In addressing possible confounders and minimizing the risk of bias, 13 studies were assigned an overall quality rating of acceptable (+) and the remaining 4, a high rating (++). For the 9-word string, there was a (non-clinical) difference of 3-5% between Swedish and Brazilian-Portuguese, and a moderate effect size for age (d = 0.49); for the consonant-vowel syllables set, clinical differences across languages were identified for adults and between 5 and 10% for children and adolescents. Part II: the pilot study showed a significant effect of lexical tone on nasalance, where nasalance for the high-level tone 1 was significantly higher than that for high-rising tone 2, low-rising tone 5, and low-falling tone 4.</p><p><strong>Discussion: </strong>There is a need for further evidence from other languages, including tonal languages, to better define the evidence and speech methodology of international cross-linguistic nasalance studies.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-21"},"PeriodicalIF":1.1,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tools for Assessing Quality of Life in People with Stroke-Induced Aphasia: A Literature Review.","authors":"Zahra Babaei, Fariba Yadegari","doi":"10.1159/000541400","DOIUrl":"10.1159/000541400","url":null,"abstract":"<p><strong>Background: </strong>The quality of life (QOL) of individuals with stroke-induced aphasia is significantly impacted by the condition. Clinicians and researchers are increasingly focusing on QOL assessments for people with aphasia (PWA) to gauge the effects of aphasia and the effectiveness of interventions. While several QOL assessment tools are utilized for PWA, there is limited literature comparing and evaluating their suitability for this population. This review aimed to explore the QOL measurement tools used with PWA, their aphasia-friendly characteristics, their applicability to severe aphasia, and the technical aspects of these questionnaires.</p><p><strong>Summary: </strong>The review process involved two stages. Initially, a search was conducted to identify the tools used for assessing the QOL of PWA in studies published between 1975 and 2022. Various databases such as Google Scholar, PubMed, Scopus, and Web of Science were searched using specific keywords related to stroke, aphasia, QOL, questionnaires, outcome measurements, tools, scales, and instruments. Subsequently, hand searching was employed to gather additional information on the identified tools, including technical properties, communication and language domains, and crucial factors for QOL assessment in PWA. Results revealed that 28 articles met the inclusion criteria, identifying 26 tools for QOL assessment in PWA, comprising 11 generic, 9 stroke-specific, and 6 aphasia-specific tools. Technical details such as research country distribution, publication years (ranging from 1972 to 2015), completion time, administration methods (self-reporting), item formats (question or statement), response types (all tools, except SIP-136, NHP, and SA-SIP30 used Likert type scale for ratings), scoring methods (sum of score or using an algorithm), translation/adaptation status (EQ-5D-3L among generic tools, SIS-16 among stroke-specific questionnaires, and SAQOL-39 among aphasia-specific instruments received the most amount of translation/adaptation), respondent characteristics (almost all the tools except aphasia-specific tests excluded people with severe aphasia), number of dimensions (ranged 1-12), item numbers [6-136], and coverage of communication/language domains (BOSS, CDP, ALA, AIQ-21 covered all language domains) were analyzed. Notably, ALA emerged as the most suitable tool for assessing QOL in PWA due to its alignment with the desired features.</p><p><strong>Key messages: </strong>Based on the review findings, clinicians and researchers are advised to prioritize the following features when selecting a QOL questionnaire for PWA: aphasia-specific and aphasia-friendly design, comprehensive coverage of QOL dimensions, inclusion of all language domains, and provision of self-reporting opportunities for PWA across all severity levels. ALA stands out as the preferred tool for QOL assessment in PWA based on its adherence to these criteria.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-19"},"PeriodicalIF":1.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation of the Spanish Version of the Voice-Related Quality of Life Questionnaire: Psychometric Properties and Clinical Applications.","authors":"Francisco Contreras-Ruston, Andrés Rosenbaum Fuentes, Lukas Salfate Velásquez, Karol Acevedo, Nury Gonzalez, Norma León Meneses, Carla Napolitano, Marco Guzman","doi":"10.1159/000541290","DOIUrl":"10.1159/000541290","url":null,"abstract":"<p><strong>Introduction: </strong>The present study aimed to validate the Voice-Related Quality of Life (V-RQOL), vocal self-assessment questionnaire for Spanish.</p><p><strong>Methods: </strong>The validation and psychometric properties were developed according to the criteria of the Scientific Advisory Committee of Medical Outcomes Trust (SAC). The Spanish translation for linguistic and cultural adaptation of the V-RQOL was used. The study involved 193 participants, including 90 vocally healthy individuals and 103 patients with voice disorders, to establish validity. To evaluate reliability, the protocol was applied to 40 participants with dysphonia, who answered it twice before the treatment. Then to determine response changes, the responses of 13 dysphonic participants to the V-RQOL for Spanish were analyzed after intervention and then compared to the initial ones. Clinicians contrasted subjects' V-RQOL results with a perceptual analysis of voice quality using the GRBAS scale. In order to determine sensitivity and specificity cut-off values, tools results were subjected to the receiver operating characteristic curve analysis. The sensitivity was obtained from the experimental group (dysphonic group) and the specificity from the control group (non-dysphonic group).</p><p><strong>Results: </strong>This version of the V-RQOL questionnaire may be used as part of the standard assessment process of people with voice complaints and as an outcome of treatment efficacy in clinical trials.</p><p><strong>Conclusion: </strong>A validation of the V-RQOL for Spanish in Chilean population was achieved.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-10"},"PeriodicalIF":1.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Carnatic Vocal Training on Voice Measures in Males.","authors":"Athickal Sreeparvathi, Shekharaiah Sheela, Venkataraja Udupi Aithal","doi":"10.1159/000541215","DOIUrl":"10.1159/000541215","url":null,"abstract":"<p><strong>Introduction: </strong>Training is an integral part of learning any skill. The vocal training helps singers attain proficiency as they are the most demanding vocal group of all professional voice users. Hence, it is necessary to evaluate the influence of training on the singer's voice. The current study objective was to investigate the influence of vocal training on voice measures (acoustic and aerodynamic) between male Carnatic singers with lower (6 months-5 years) and higher (6-10 years) training using novel task \"mkaram\" along with lyrical task.</p><p><strong>Methods: </strong>Group 1 consisted of 30 trained male Carnatic singers with lower vocal training, and group 2, thirty trained male singers with higher training in the age of 18-45 years. The acoustic (frequency-related parameter, cepstral, spectral, perturbation, and noise) and aerodynamic measures (maximum phonation time and s/z ratio) of voice were obtained. The test-retest reliability was conducted on a sample of 10% of the population from each group, with a 2-week interval between the tests. Cross-sectional study design was applied.</p><p><strong>Results: </strong>The statistical analysis revealed significantly decreased frequency-related parameters (semitones) such as the mean fundamental frequency, lowest fundamental frequency, highest fundamental frequency at the low register and the highest fundamental frequency at the middle register in group 2 during \"mkaram\" task (p ≤ 0.05). Similarly, one of the spectral-related measures 1st harmonic-2nd harmonic (dB) during lyrical task and one of the noise-related measure harmonic-to-noise ratio (dB) at the middle register during \"mkaram\" task showed a significant decrease in group 2 compared to group 1 (p ≤ 0.05). Test-retest reliability revealed that most of the parameters had \"acceptable to excellent\" internal consistency (Cronbach's α &gt;0.7 to 1).</p><p><strong>Conclusion: </strong>Few frequency and noise measures during \"mkaram\" task and a spectral measure during lyrical task showed to be sensitive in distinguishing the impact of vocal training on the voices of male Carnatic singers. The higher vocal training was found to help the singers to perform more efficiently with enhanced vocal range particularly in the low register and to some extent in the middle register. Indeed, the study highlighted the positive effects of vocal training on male Carnatic singers.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-12"},"PeriodicalIF":1.1,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Suspension Pharyngeal Flap on Speech in Filipino Individuals with Velopharyngeal Insufficiency.","authors":"Cassandra Alighieri, Andrew Hodges, Jolien Verbeke, Katrien Kestens, Kim Bettens, Rica Albite, Raphaelle May Tan, Kristiane M Van Lierde","doi":"10.1159/000540308","DOIUrl":"10.1159/000540308","url":null,"abstract":"<p><strong>Introduction: </strong>This study investigated the effects of suspension pharyngeal flap surgery for velopharyngeal insufficiency (VPI) due to cleft palate.</p><p><strong>Methods: </strong>Ten Filipino individuals (mean age = 20.63 years, range = 8.4-34.9 years) with a cleft palate who underwent suspension pharyngeal flap surgery for VPI were included in this study. Perceptual and instrumental speech assessments were conducted at two different time points: before surgery (data point 1) and after surgery (data point 2, range = 4-26 weeks postoperatively). Speech intelligibility in different contexts and satisfaction with speech were assessed by the participants themselves using a self-report questionnaire. Additionally, the risk for obstructive sleep apnea was assessed using the Berlin Questionnaire.</p><p><strong>Results: </strong>Velopharyngeal gap size significantly decreased after the surgery. Additionally, significant improvements in speech understandability and acceptability were observed following the suspension pharyngeal flap procedure. Besides, a significant reduction in hypernasality, nasal emission, and the occurrence of passive articulation errors was seen. No difference in the occurrence of active articulation errors was observed when comparing data pre- and post-surgery. The ten individuals reported to be significantly more intelligible in different contexts after surgery.</p><p><strong>Conclusion: </strong>Improved speech was observed in individuals who received the suspension pharyngeal flap procedure. This procedure also positively influences an individual's intelligibility in different contexts in daily life. In individuals with persisting active articulation errors, post-surgery speech therapy will still be necessary.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-13"},"PeriodicalIF":1.1,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141897219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimates of Speech Efficiency in Monolingual and Bilingual Speakers of English.","authors":"Yuting Song, Michael P Robb, Yang Chen","doi":"10.1159/000540671","DOIUrl":"10.1159/000540671","url":null,"abstract":"<p><strong>Introduction: </strong>The Speech Efficiency Score (SES) serves as an acoustic metric for assessing fluency in conversational speech within the temporal domain. This study leverages SES to investigate conversational speech efficiency among native speakers of American English (AE) compared to speakers of Mandarin-accented English (MAE).</p><p><strong>Methods: </strong>SES, speaking rate, articulation rate, and vocabulary diversity were measured and compared between two groups: native AE speakers and MAE speakers. The study utilized conversational speech samples collected from both groups to analyze these metrics.</p><p><strong>Results: </strong>Findings indicate a disparity in speaking rate and articulation rate between the AE and MAE groups, with the AE group exhibiting significantly faster speech. However, no significant differences were observed in SES and vocabulary diversity between the two groups.</p><p><strong>Conclusion: </strong>The results are discussed in the context of the interplay between speaking rate, speech fluency, and vocabulary diversity. These findings shed light on the maintenance of speech efficiency among bilingual speakers, suggesting that despite differences in speaking rate and articulation rate, SES and vocabulary diversity remain comparable between native AE speakers and MAE speakers.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-10"},"PeriodicalIF":1.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141859450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between IDDSI Flow Test and Consistometric Measures for Consistency Classification - An Examination of Thickened Liquids Prepared Using Starch-Based and Xanthan Gum-Based Thickening Agents.","authors":"Mingyue Xiong, Nelson Ng, Brian Siu, Manwa L Ng","doi":"10.1159/000540118","DOIUrl":"https://doi.org/10.1159/000540118","url":null,"abstract":"<p><strong>Introduction: </strong>Consistency of liquid food plays an important role in managing patients with dysphagia, which can be objectively evaluated by using IDDSI Flow Test and consistometry. The present study established the relationship between IDDSI Flow Test and consistometric measures, and examined the measurement limitations of each test associated with thickened liquids prepared using starch-based and xanthan gum-based thickening agents.</p><p><strong>Methods: </strong>Thirteen thickened liquid samples of consistency ranging from IDDSI Level 1 (mildly thick) to Level 3 (moderately thick) were prepared using starch-based and xanthan gum-based thickeners. IDDSI Flow Test and consistometric measures were obtained and analyzed using correlation and regression.</p><p><strong>Results: </strong>A strong correlation was observed between both tests. Regression analyses revealed a linear and a quadratic relationship between IDDSI Flow Test and consistometric measurements, respectively.</p><p><strong>Conclusion: </strong>Starch-based and xanthan gum-based thickeners exhibited different relationships between IDDSI Flow Test and consistometric measurements. Findings allow easy conversion and adaptation of consistometric measures to the IDDSI framework, which renders the use of consistometry in the clinical settings as a complementary quantitative measurement of liquid consistency to IDDSI Flow Test.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141751467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acoustic Character Governing Variation in Normal, Benign, and Malignant Voices.","authors":"Boquan Liu, Jianhan Lei, Owen P Wischhoff, Katerina A Smereka, Jack J Jiang","doi":"10.1159/000540255","DOIUrl":"10.1159/000540255","url":null,"abstract":"<p><strong>Introduction: </strong>Benign and malignant vocal fold lesions (VFLs) are growths that occur on the vocal folds. However, the treatments for these two types of lesions differ significantly. Therefore, it is imperative to use a multidisciplinary approach to properly recognize suspicious lesions. This study aimed to determine the important acoustic characteristics specific to benign and malignant VFLs.</p><p><strong>Methods: </strong>The acoustic model of voice quality was utilized to measure various acoustic parameters in 157 participants, including individuals with normal, benign, and malignant conditions. The study comprised 62 female and 95 male participants (43 ± 10 years). Voice samples were collected at the Shanghai Eye, Ear, Nose, and Throat Hospital of Fudan University between May 2020 and July 2021. The acoustic variables of the participants were analyzed using Principal Component Analysis (PCA) to present important acoustic characteristics that are specific to normal vocal folds, benign VFLs, and malignant VFLs. The similarities and differences in acoustic factors were also studied for benign conditions including Reinke's edema, polyps, cysts, and leukoplakia.</p><p><strong>Results: </strong>Using the PCA method, the components that accounted for the variation in the data were identified, highlighting acoustic characteristics in the normal, benign, and malignant groups. The analysis indicated that coefficients of variation in root mean square energy were observed solely within the normal group. Coefficients of variation in pitch (F0) were found to be significant only in benign voices, while higher formant frequencies and their variability were identified as contributors to the acoustic variance within the malignant group. The presence of formant dispersion (FD) as a weighted factor in PCA was exclusively noted in individuals with Reinke's edema. The amplitude ratio between subharmonics and harmonics (SHR) and its coefficients of variation were evident exclusively in the polyps group. In the case of voices with cysts, both pitch (F0) and coefficients of variation for FD were observed to contribute to variations. Additionally, higher formant frequencies and their coefficients of variation played a role in the acoustic variance among voices of patients with leukoplakia.</p><p><strong>Conclusion: </strong>Experimental evidence demonstrates the utility of the PCA method in the identification of vibrational alterations in the acoustic characteristics of voice affected by lesions. Furthermore, the PCA analysis has highlighted underlying acoustic differences between various conditions such as Reinke's edema, polyps, cysts, and leukoplakia. These findings can be used in the future to develop an automated malignant voice analysis algorithm, which will facilitate timely intervention and management of vocal fold conditions.</p>","PeriodicalId":12114,"journal":{"name":"Folia Phoniatrica et Logopaedica","volume":" ","pages":"1-10"},"PeriodicalIF":1.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141563039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}