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30 Cards in this Set
- Front
- Back
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Biphasic closure
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Type of vocal fold closing pattern commonly seen in pulse register; characterized by partial closure, followed by opening, and then full closure.
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Breathiness
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Vocal quality that sounds aspirated due to air loss and turbulence at the glottis
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Closed quotient
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EGG measure based on the ratio of the closed phase of the duty cycle to the period of the entire cycle
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Closed-to-Open ratio
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EGG measure based on the difference in time between the closing and opening phases of the duty cycle, divided by the duration of the closed phase
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Contact index
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EGG measure based on the ratio of the difference in time between closing and opening phases, divided by the duration of the closed phase.
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Cover body model
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model of the vocal folds that describes their layered structure and different levels of stiffness
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dysphonia
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any kind of vocal dysfunction resulting in a deviant-sounding voice
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electroglottography
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method of evaluation vocal fold function based on the difference between electrical conductivity of tissue and air; also called laryngography
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falsetto
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a range of very high Fo with a thin, breathy quality; also called loft
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frequency perturbation
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cycle-to-cycle variability in vocal frequency; also called jitter
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glottal spectrum
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Spectrum of the laryngeal tone before it is modified in the vocal tract.
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glottis
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Space between the true vocal folds.
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harmonic spacing
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Distance between harmonic frequencies in a complex sound.
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harmonics-to-noise ratio
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Measure, in dB, of the ratio of harmonic energy to noise energy in the voice.
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hoarseness
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Vocal quality combining breathy plus rough characteristics.
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hyperadduction
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Vocal folds adducted with excessive medial compression.
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hypoadduction
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Vocal folds adducted with insufficient medial compression.
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jitter
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Cycle- to- cycle variability in frequency of vocal fold vibration; also called frequency perturbation.
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Lx wave
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Waveform generated by electroglottography, with time on the horizontal axis and voltage on the vertical axis.
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medial compression
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Force exerted by the LCA and IA muscles to bring the vocal folds to mid-line.
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mucosal wave
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Undulating wavelike motion of the vocal folds during vibration, particularly evident in the cover.
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modal register
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Most commonly used register for normal conversational speech, encompass-ing the midrange of F0.
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myoelastic aerodynamic theory
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Theory that explains vocal fold vibration in terms of muscular, elastic recoil and aerodynamic forces.
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phonation threshold pressure
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Minimum amount of Ps needed to set the vocal folds into vibration.
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pulse register
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A range of very low F0 with a creaky quality; also called glottal fry, vocal fry, creaky voice.
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roughness
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Vocal quality that sounds raspy and low pitched due to aperiodic vocal fold vibration.
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shimmer
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Cycle- to- cycle variability in amplitude of the vocal fold vibration; also called amplitude perturbation.
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spectral noise
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Additive noise in the glottal spectrum.
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vocal register
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voice quality
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