نتایج جستجو برای: acoustic characteristics of voice

تعداد نتایج: 21199160  

Journal: :Kathmandu University medical journal 2010
K C Toran B K Vaidhya

BACKGROUND Vocal polyps are the products of voice overuse, misuse and abuse as the most common causative factors. Treatment generally advised for them are voice therapy and Microlaryngeal Phonosurgery (MLPS). The improved or changed quality of voice is generally assessed perceptually and can cause intra rater variability. In this study we compared and analysed the acoustic characteristics befor...

1993
Dimitar D. Deliyski

An acoustic model of pathological voice production is presented. It describes the non-linear effects occurring in the acoustic waveform of disordered voices. The noise components such as fundamental frequency and amplitude irregularities and variations, sub-harmonic components, turbulent noise and voice breaks are formally expressed as a result of random time function influences on the excitati...

2017
Win Thuzar Kyaw Yoshinori Sagisaka

Motivated by the success of speech characteristics representation by color attributes, we analyzed the cross-modal sentiment correlations between voice source characteristics and textural image characteristics. For the analysis, we employed vowel sounds with representative three phonation differences (modal, creaky and breathy) and 36 texture images with 36 semantic attributes (e.g., banded, cr...

2006
Shinya Yamada Toshihiko Itoh Kenji Araki

This paper presents the characteristic differences of linguistic and acoustic features observed in different spoken dialogue situations and with different dialogue partners: human-human vs. humanmachine interactions. And it also presents influences of awareness of users on those characteristics. We compare the linguistic and acoustic features of the user’s speech to a spoken dialogue system and...

2013
James M. Hillenbrand

This tutorial reviews acoustic methods that have been used to characterize vocal function. The most persuasive argument for the use of acoustic measures is that all of the information used by listeners to make judgments about speech is to be found in the acoustic signal. Acoustic methods have been used clinically to differentiate normal from abnormal voices, to aid in differential diagnosis, to...

2003
Youngmoo Edmund Kim Andrew B. Lippman

The singing voice is the oldest and most variable of musical instruments. By combining music, lyrics, and expression, the voice is able to affect us in ways that no other instrument can. As listeners, we are innately drawn to the sound of the human voice, and when present it is almost always the focal point of a musical piece. But the acoustic flexibility of the voice in intimating words, shapi...

Journal: :Journal of medical signals and sensors 2015
Fariba Rezaei Mohammad Reza Omrani Fateme Abnavi Fariba Mojiri Marzieh Golabbakhsh Sohrab Barati Behzad Mahaki

Acoustic analysis of sounds produced during speech provides significant information about the physiology of larynx and vocal tract. The analysis of voice power spectrum is a fundamental sensitive method of acoustic assessment that provides valuable information about the voice source and characteristics of vocal tract resonance cavities. The changes in long-term average spectrum (LTAS) spectral ...

2007
G. Pouchoulin C. Fredouille J.-F. Bonastre A. Ghio A. Giovanni

Since several years, many studies have focused on the objective measurement-analysis for dysphonic voice assessment, proposed as an alternative to the perceptual evaluation [5] that is extensively used by clinicians. In most cases, these studies describe classification systems, based on acoustic, physiological and/or aerodynamic parameters, in order to improve the performance and to help clinic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1392

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

2003
Carlo Drioli Graziano Tisato Piero Cosi Fabio Tesser

Voice quality is recognized to play an important role for the rendering of emotions in verbal communication. In this paper we explore the effectiveness of a sinusoidal modeling processing framework for voice transformations finalized to the analysis and synthesis of emotive speech. A set of acoustic cues is selected to compare the voice quality characteristics of the speech signals on a voice c...

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