scholarly journals Study of Acoustic Properties of Nasal and Nonnasal Vowels in Temporal Domain

2013 ◽  
Author(s):  
Nishant Singhal ◽  
Pradip K. Das
Keyword(s):  
Acoustic Properties ◽  
Temporal Domain

Acoustical Analysis of Spanish Vowels Produced by Laryngectomized Subjects

2001 ◽  
Vol 44 (5) ◽  
pp. 988-996 ◽  
Author(s):  
Teresa Cervera ◽  
José L. Miralles ◽  
Julio González-Àlvarez
Keyword(s):  
Acoustic Properties ◽  
Control Group ◽  
Vowel Duration ◽  
Vowel Production ◽  
Acoustic Characteristics ◽  
Temporal Domain ◽  
Word Context ◽  
Study Results ◽  
Audio Recordings ◽  
English Speaking

The purpose of this study was to describe the acoustic characteristics of Spanish vowels in subjects who had undergone a total laryngectomy and to compare the results with those obtained in a control group of subjects who spoke normally. Our results are discussed in relation to those obtained in previous studies with English-speaking laryngectomized patients. The comparison between English and Spanish, which differ widely in the size of their vowel inventories, will help us to determine specific or universal vowel production characteristics in these patients. Our second objective was to relate the acoustic properties of these vowels to the perceptual data obtained in our previous work (J. L. Miralles & T. Cervera, 1995). In that study, results indicated that vowels produced by alaryngeal speakers were well perceived in word context. Vowels were produced in CVCV word context by two groups of patients who had undergone laryngectomy: tracheoesophageal speakers (TES) and esophageal speakers. In addition a control group of normal talkers was included. Audio recordings of 24 Spanish words produced by each speaker were analyzed using CSL (Kay Elemetrics). Results showed that F1, F2, and vowel duration of alaryngeal speakers differ significantly from normal values. In general, laryngectomized patients produce vowels with higher formant frequencies and longer durations than the group of laryngeal subjects. Thus, the data indicate modifications either in the frequency or temporal domain, following the same tendency found in previous studies with English-speaking laryngectomized speakers.

scholarly journals Stimulated Brillouin gain spectroscopy in a confined spatio-temporal domain (30 μm, 170 ns)

2020 ◽  
Vol 89 (3) ◽  
pp. 30701
Author(s):  
Lionel Djadaojee ◽  
Albane Douillet ◽  
Jules Grucker
Keyword(s):  
Brillouin Scattering ◽  
Test Sample ◽  
Gain Spectrum ◽  
Acoustic Properties ◽  
Transient Phenomena ◽  
Temporal Domain ◽  
Spatio Temporal ◽  
Brillouin Gain ◽  
Stimulated Brillouin ◽  
Different Sources

The Brillouin gain spectrum of a test sample (liquid acetone at room temperature) on scales simultaneously confined in space (~30 μm) and time (~170 ns) is reported. This is done using a pulsed stimulated Brillouin scattering gain spectrometer in a θ ≈ 90° crossing beam configuration. After having identified and corrected for different sources of background signals, we obtained a Brillouin gain spectrum allowing an accurate measurement (MHz range) of the Brillouin frequency (few GHz). This is of interest for probing acoustic properties of transparent media subjected to repetitive fast transient phenomena on small length scales.

Acoustic Properties of Artifical Larnyx Speech

1988 ◽  
Vol 16 ◽  
pp. 31-39
Author(s):  
Bethann Moffet ◽  
Rebekah Pindzola
Keyword(s):  
Acoustic Properties

Acoustic properties of rare-earth alloys Tb0.27Dy0.73(Fe1-xMnx)1.9

1994 ◽  
Vol 04 (C5) ◽  
pp. C5-705-C5-708
Author(s):  
V. PREOBRAZHENSKY ◽  
I. DUBENKO ◽  
N. ECONOMOV ◽  
A. ZAIKIN
Keyword(s):  
Rare Earth ◽  
Acoustic Properties ◽  
Rare Earth Alloys

Studies of Acoustic Properties of Substituted Heterocyclic Drugs in Dioxane & Dioxane-Water Mixture At 290C

2011 ◽  
Vol 4 (7) ◽  
pp. 75-78
Author(s):  
Y. K. Meshram Y. K. Meshram ◽  
◽  
K.N.Sonune K.N.Sonune ◽  
Rohinee R Dharamkar
Keyword(s):  
Acoustic Properties ◽  
Water Mixture

Study of Elastic and Acoustic Properties of TiN

2014 ◽  
Vol 2014 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Sanjay Srivastava ◽  
◽  
Nitu Yana ◽  
A.K. Gupta ◽  
Y. Srivastava ◽  
...  
Keyword(s):  
Acoustic Properties
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