نتایج جستجو برای: acoustic analysis

تعداد نتایج: 2892799  

Journal: :Symmetry 2021

The general dynamic characteristics of the acoustic cavity with multiple partial partitions are presented in this thesis. A theoretical model has been developed for predictions, and several configurations analyzed. To describe apertures on interface subcavities, virtual air panel assumption is introduced into improved Fourier series system. governing equations coupling system derived by using e...

2013
Abdellah Kacha Francis Grenez Jean Schoentgen

Cepstral-based acoustic cues for disordered voices analysis have been investigated in a number of studies. It has been shown that cepstral-based acoustic cues such as the harmonics-to-noise ratio (HNR), the amplitude of the first rhamonic (R1A) provide acoustic correlates for hoarse voice quality. The aim of this presentation is to investigate an acoustic analysis of speech by means of spectral...

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Background and Objective: A practical method for noise control in environments with different noise sources is designing an acoustic cabin for the workers. In this regard, this study aimed to assess the efficiency of the acoustic cabin in a typical turbine unit of a thermal power plant to provide acoustic comfort. Materials and Methods: Measurement of the noise level and spectrum, as well as v...

2015
Jacques Steyn

The information architecture of acoustic music instruments is described. As contemporary acoustic research has not yet covered all the possible materials, shapes, designs, and other essential properties of possible acoustic instruments, the model proposed in this chapter serves as a high-level analysis with meta-level XML-based markup elements and attributes. The ultimate design goal of the pro...

2014
Sofoklis Kakouros Okko Johannes Räsänen

Various studies have examined the acoustic features in infant directed speech (IDS) and adult directed speech (ADS). However, there are few speech corpora with prominence annotation from multiple listeners or analysis of the acoustic properties of the stressed versus unstressed words, most studies and corpora focusing on syllabic stress. In order to fill this gap, the current study analyzes the...

Journal: :thrita 0
mohaddese tarazani speech therapy department, tehran university of medical siences, tehran, ir iran seyyedeh maryam khoddami speech therapy department, tehran university of medical siences, tehran, ir iran; tehran university of medical sciences, school of rehablitation, madar square, nezam alley, shahnazari street, mirdamad street, tehran, ir iran. tel: +98-2122228051(155), fax: +98-2122220946 shohre jalaie physiotherapy department, tehran university of medical siences, tehran, ir iran saeed talebian moghadam physiotherapy department, tehran university of medical siences, tehran, ir iran mohammad akbari physiotherapy department, tehran university of medical siences, tehran, ir iran

results certain correlations were found between fundamental frequency in vowel and total vhi, physical, functional and emotional domains of vhi in group 1 (r = 0.636, 0.649, 0.613 and 0.592 respectively). there was good correlation between speaking fundamental frequency and total vhi and its subscales - except the physical subscale - were also correlated. in group 2, the correlations between ji...

1999
Juan Ignacio Godino-Llorente Santiago Aguilera-Navarro Sira E. Palazuelos-Cagigas José L. Martín-Sánchez

Voice registers are widely affected when voice diseases appear. These diseases have to be diagnosed and treated during an early stage. Detection of voice diseases may be carried out by means of acoustic analysis of voice register. Many algorithms to calculate acoustic parameters have been developed and have been demonstrated that there is a great correlation between parameter deviations and imp...

2015
Shambhu Nath Saha Shyamal Kr. Das Mandal

English lexical stress is multidimensional in nature and acoustically related to combination of fundamental frequency (F0), duration, intensity and vowel quality. Errors in any or all of these correlates could interfere with perception of the stress contrast, but it is unknown which correlates are most difficult for Bengali speakers to acquire. This study compares the use of these correlates in...

2003
GRETCHEN L. MATTHEWS

Given a numerical semigroup S, let M(S) = S \{0} and (lM(S)− lM(S)) = {x ∈ N0 : x + lM(S) ⊆ lM(S)}. Define associated numerical semigroups B(S) := (M(S)−M(S)) and L(S) := ∪l=1(lM(S)− lM(S)). Set B0(S) = S, and for i ≥ 1, define Bi(S) := B(Bi−1(S)). Similarly, set L0(S) = S, and for i ≥ 1, define Li(S) := L(Li−1(S)). These constructions define two finite ascending chains of numerical semigroups ...

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