Voice Disorders - Presentation 9

Voice Disorders - Presentation 9 - The Voice and Voice...

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Click to edit Master subtitle style 11 The Voice and Voice Disorders Chapter 9
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22 Overview Four vocal parameters: pitch, loudness, quality, resonance Voice Disorders Definitions Abuse-related disorders Laryngitis Vocal Nodules Polyps Medical and physical conditions Contact ulcers Paralysis Papilloma (Spastic dysphonia) Laryngeal cancer & laryngectomy
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33 Four Vocal Parameters Pitch Loudness Quality Resonance
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44 Vocal Parameters Vocal Pitch Psychological perception of frequency of vocal fold vibration Measured in Hertz (Hz) or cycles per second Fundamental Frequency: The rate at which a persons vocal folds vibrate Male: Average is about 130hz per second Female: Average is about 250hz per second
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55 Pitch The fundamental frequency of vocal fold vibration is determined by the structure of the vocal folds Men have longer and thicker VF If you increase tension and length which leads to higher pitch
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66 Vocal Parameters Loudness: Psych perception of volume
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77 Loudness Determined by the degree of subglottal air pressure Greater air pressure below the vocal folds leads to increased loudness
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88 Vocal Parameters Vocal Quality Breathy: Vocal folds don’t close completely Harsh: Rough sounding voice Vocal folds pressed together too tightly and air is released abruptly
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99 Vocal Quality Hoarse: Combination = harsh and breathy Results from irregular vocal fold vibration
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This note was uploaded on 06/10/2008 for the course HSLS 108 taught by Professor Mccarthy during the Spring '08 term at Ohio University- Athens.

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Voice Disorders - Presentation 9 - The Voice and Voice...

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