Objectives: Acoustic measurements have become an essential aspect of voice assessment during the last few decades, and studies have established that normative data is necessary for acoustic analysis. In this study, two aspects of voice are reviewed. These two factors are fundamental frequency and intensity. This study was designed to establish the normal acoustic analysis parameters in normal Iranian adults.
Methods: In this cross-sectional study, 200 healthy randomly selected subjects (100 men and 100 women) were assessed. Data collection was carried out using the Studio Speech software and Laryngograph processor (Laryngograph Ltd, London, UK), type: PCLX at the Larynx and Voice Disorders Clinic of Rasoul-e-Akram Hospital under comfortable phonation.
Results: The value of fundamental frequency in reading was greater for women (170-240 Hz) than for men (107-140 Hz). Also, the value of intensity was greater for women (73.54-84.99 dB) than for men (72.40-86.03 dB).
Conclusion: The present study developed the normal data for fundamental frequency and intensity in Iranian speakers aged between 18 and 45 years. We concluded, fundamental frequency has significant differences between men and women, but intensity has no significant difference between them.
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http://dx.doi.org/10.1016/j.jvoice.2011.05.008 | DOI Listing |
Codas
January 2025
Departamento de Saúde Interdisciplinaridade e Reabilitação, Faculdade de Ciências Médicas, Universidade Estadual de Campinas - UNICAMP - Campinas (SP), Brasil.
Purpose: To verify possible correlations between fo and voice satisfaction among Brazilian transgender people.
Methods: An observational, cross-sectional quantitative study was conducted with the Trans Woman Voice Questionnaire (TWVQ), voice recording (sustained vowel and automatic speech) and extraction of seven acoustic measurements related to fo position and variability in transgender people. Participants were divided into two groups according to gender.
JASA Express Lett
January 2025
Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle, Washington 98103, USA.
Pitch perception affects children's ability to perceive speech, appreciate music, and learn in noisy environments, such as their classrooms. Here, we investigated pitch perception for pure tones as well as resolved and unresolved complex tones with a fundamental frequency of 400 Hz in 8- to 11-year-old children and adults. Pitch perception in children was better for resolved relative to unresolved complex tones, consistent with adults.
View Article and Find Full Text PDFUltrashort pulses experience random quantum motion as they propagate through a mode-locked laser cavity, a phenomenon that inevitably affects the recently introduced pure-quartic solitons. Investigating this process is essential, as quantum-limited noise establishes fundamental performance limits for their application. To date, studies on quantum diffusion and the resulting timing jitter of these solitons remain sparse.
View Article and Find Full Text PDFThis paper demonstrates a customized quartz tuning fork (QTF) coated with the titanium carbide (TiCT) MXene film that can effectively enhance the sensitivity of light-induced thermoelastic spectroscopy (LITES). The MXene film is coated at the root of the customized QTF. The film area is proven to have little impact on resonance frequency, bandwidth, quality factor, and amplitude of the second harmonic signal (2) based on the fundamental flexural mode.
View Article and Find Full Text PDFThis paper presents an adaptive fast Fourier transform (adaptive FFT) demodulation scheme, aimed at enhancing the precision and noise suppression capability of signal processing in fiber-optic interferometric sensors. By adaptively optimizing the length of the acquired spectrum and dynamically adjusting the frequency domain resolution, the proposed scheme can precisely calculate the eigenfrequency of the reflected spectrum. Therefore, the adaptive FFT demodulation scheme can effectively enhance the extraction ability of phase quadrature demodulation signal.
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