نتایج جستجو برای: acoustic characteristics of voice

تعداد نتایج: 21199160  

1996
Natasha Warner

The purpose of this paper is to investigate acoustic characteristics which distinguish ejectives from pulmonic stops in Ingush (a Northeast Caucasian language), and to compare Ingush ejectives to those of other languages. The articulation of ejectives is relatively well understood, but their acoustic effects are less clear. Working with a native speaker of Ingush, ejectives and pulmonic voicele...

2012
Katharine Graf Estes

The acoustic variation in language presents learners with a substantial challenge. To learn by tracking statistical regularities in speech, infants must recognize words across tokens that differ based on characteristics such as the speaker's voice, affect, or the sentence context. Previous statistical learning studies have not investigated how these types of non-phonemic surface form variation ...

2011
Vishweshwara Rao Chitralekha Gupta Preeti Rao

The effectiveness of audio content analysis for music retrieval may be enhanced by the use of available metadata. In the present work, observed differences in singing style and instrumentation across genres are used to adapt acoustic features for the singing voice detection task. Timbral descriptors traditionally used to discriminate singing voice from accompanying instruments are complemented ...

2015
Jalal Al-Tamimi

The aim of this study is to evaluate the role of spectral tilt, alongside the traditionally looked at frequencies of the first two formants, in describing the acoustic characteristics of pharyngealisation in Jordanian and Moroccan Arabic. Twenty male speakers (10 per dialect) produced vowels in each dialect preceded by /d dʕ/. Normalised spectral tilt results show an overall lowered values for ...

Journal: :IEEE transactions on bio-medical engineering 2000
Marcelo de Oliveira Rosa Jose Carlos Pereira Marcos Grellet

The use of noninvasive techniques to evaluate the larynx and vocal tract helps the speech specialists to perform accurate diagnose of diseases. In this study, a method to distinguish among 21 different pathologies using speech signals was developed. Through inverse filtering (Kalman and Wiener filters) of the voice signal, the residue was estimated and seven acoustic features were extracted fro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...

Journal: :NeuroRehabilitation 2013
Young-Im Bang Kyunghoon Min Young H Sohn Sung-Rae Cho

The purpose of this study was to define the acoustic voice and speech characteristics of patients with Parkinson disease (PD). Seven female patients with PD and seven female healthy controls participated in this study. Each subject was instructed to vocalize extended corner vowels (/a/, /e/, /i/, /u/) three times for at least 5 seconds at a comfortable voice loudness and tone. The voice was ana...

2001
Cheol-Woo Jo Kwangin Kim Dae-Hyun Kim Soo-Geon Wang

These days there are many attempts to diagnose patient’s voice by only acoustic voice signal. The major purpose of such experiments are screening the possible patients and lead them to the early diagnosis and treatment. [1][2][3][4][5] Acoustic screening of patient's voice is important in terms of many aspects. It is important for both doctors, who is not an expert of vocal diseases and the pat...

2006
Yasunori Ohishi Masataka Goto Katunobu Itou Kazuya Takeda

In this paper, acoustic cues and human capability for discriminating singing and speaking voices are discussed to develop an automatic discrimination system for singing and speaking voices. Based on the results of preliminary subjective experiments, listeners discriminate between singing and speaking voices with 70.0% accuracy for 200-ms signals and 99.7% for one-second signals. Since even shor...

2011
Tokihiko Kaburagi

The acoustic coupling between the voice production system and the vocal tract has a significant influence on the production of voice. In this study, the coupling effect was represented using the acoustic pressure difference across the glottis, which is capable of inducing a flow, and the mean acoustic pressure in the glottis, which acts as a driving force for the vocal folds. These specific aco...

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