A Study of Voice Source and Vocal Tract Filter Based Features in Cognitive Load Classification

2010 ◽  
Author(s):  
Phu Ngoc Le ◽  
Julien Epps ◽  
Eric H.C. Choi ◽  
Eliathamby Ambikairajah
Keyword(s):  
Cognitive Load ◽  
Vocal Tract ◽  
Voice Source

Physiology and its Impact on the Performance of Singing

2015 ◽  
pp. 66-84
Author(s):  
Filipa M. B. Lã ◽  
Brian P. Gill
Keyword(s):  
Vocal Tract ◽  
Teaching Method ◽  
Vocal Technique ◽  
Voice Source ◽  
Advantages And Disadvantages ◽  
Physiological Processes ◽  
Subglottal Pressure ◽  
Source Signal ◽  
Frequency Components ◽  
Singing Performance

Singing performance is highly competitive; thus, finding strategies to accelerate the acquisition of knowledge that results in an efficient and effective vocal technique is of the utmost importance. There are many ways in which a singer may acquire an efficient and effective vocal technique, which can be based on the physiological processes of voice production. This chapter explores these processes within the context of singing performance. The authors examine three major aspects of singing: 1) efficient control of breathing, such that optimal airflow and subglottal pressure are available as needed, for a given frequency and intensity; 2) maximized laryngeal coordination, so that the voice source signal contains all the necessary frequency components for the desired tone; and 3) the modulation of the source signal by subtle shaping of the vocal tract. The advantages and disadvantages of various pedagogical methods are discussed, including breath management, known as appoggio, and different resonant strategies. The authors advocate for a scientifically-grounded teaching method, which allows for physiological differences between individuals, genders, and voice classifications.

The Sound Source in Singing

2015 ◽  
pp. 108-144 ◽  
Author(s):  
Christian T. Herbst ◽  
David M. Howard ◽  
Jan G. Švec
Keyword(s):  
Vocal Tract ◽  
Spectral Composition ◽  
Physiological Parameters ◽  
Special Focus ◽  
Singing Voice ◽  
Voice Pedagogy ◽  
Typical Application ◽  
Voice Source ◽  
Vocal Fold Vibration

The voice instrument is composed of three basic sub-systems: the pulmonary apparatus, the laryngeal voice source, and the vocal tract for sound modification. In this chapter, the laryngeal sound generation is examined in closer detail, with a special focus on singing voice production. In particular, the relation between the quality of vocal fold vibration, the consistence of the glottal airflow, and the spectral composition of the resulting laryngeal sound output (before being filtered by the vocal tract) is discussed. Two basic physiological parameters for controlling these features are described: cartilaginous adduction (controlled along the dimension of “breathy” vs. “pressed” voice); and membranous medialization (influenced by the choice of singing voice register). It is shown that these two physiological parameters can be varied independently, and how they can be incorporated into a pedagogical model. Based on this model, a typical application from the singing studio is described. Finally, the range of sound qualities resulting from independent variation of cartilaginous adduction and membranous medialization is being commented on by five known voice pedagogues, in an attempt to unify the respective terminology in voice pedagogy.

Contributions of voice‐source and vocal‐tract characteristics to speaker identity

1992 ◽  
Vol 92 (4) ◽  
pp. 2301-2301
Author(s):  
J. H. Eggen ◽  
S. G. Nooteboom ◽  
A. J. M. Houtsma
Keyword(s):  
Vocal Tract ◽  
Voice Source

The Singing Voice

2018 ◽  
pp. 116-142
Author(s):  
Johan Sundberg
Keyword(s):  
Mechanical Properties ◽  
Vocal Tract ◽  
Voice Quality ◽  
Vocal Folds ◽  
Sound Level ◽  
Vowel Sound ◽  
Formant Frequency ◽  
Voice Source ◽  
Subglottal Pressure ◽  
The Voice

The sound quality of singing is determined by three basic factors—the air pressure under the vocal folds (or the subglottal pressure), the mechanical properties of the vocal folds, and the resonance properties of the vocal tract. Subglottal pressure is controlled by the respiratory apparatus. It regulates vocal loudness and is varied with pitch in singing. Together with the mechanical properties of the folds, which are controlled by laryngeal muscles, it has a decisive influence on vocal fold vibrationswhich convert the tracheal airstream to a pulsating airflow, the voice source. The voice source determines pitch, vibrato, and register, and also the overall slope of the spectrum. The sound of the voice source is filtered by the resonances of the vocal tract, or the formants, of which the two lowest determine the vowel quality and the higher ones the personal voice quality. Timing is crucial for creating emotional expressivity; it uses an acoustic code that shows striking similarities to that used in speech. The perceived loudness of a vowel sound seems more closely related to the subglottal pressure with which it was produced than with the acoustical sound level. Some investigations of acoustical correlates of tone placement and variation of larynx height are described, as are properties that affect the perceived naturalness of synthesized singing. Finally, subglottal pressure, voice source, and formant-frequency characteristics of some non-classical styles of singing are discussed.

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