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Quiz 1

When air particles are close together Compression
The source of sound is something that causes vibration
In wave propagation, the individual particles move back and forth a short distance
Speech and hearing scientist use the waveform to represent the pressure wave. The peak on the waveform represents periods of Compression
The height of a waveform represents Amplitude (How loud)
Hertz measures Frequency (Cycles/sec.)
T/F All sounds in English have approximately the same pitch false
T/F The human voice is an example of a simple sound wave. false
Examples of complex sounds Periodic & aperiodic sounds
T/F The tympanic membrane functions most efficiently when it is very tight. False
3 resonance cavities relevant to speech Pharynx, oral, naval
The phonatory system is primarily represented by which anatomical structure. Vocal folds
Pull vocal folds apart Vocal fold abductors
2 primary ways of increasing amplitude increasing vocal fold aDDuction & increasing breath support.
125 Hz is the average fundamental frequency of men
If you stretch your vocal folds, your speech will get higher in pitch
Bring vocal folds together vocal fold adductors
Primary muscle of inhalation the diaphragm
T/F The primary function of the vocal folds is to produce sounds. True
T/F Speech breathing is no different than regular breathing in terms of inhale/exhale ratio. True
An intermediary connection between the tongue and the larynx. epiglottis
T/F Vocal fold sit on top of the trapea true
The 4 systems of speech production Respiratory, phonatory, resonance, articulatory
Respiratory LUNGS
Resonance "THE MEGAPHONE" (pharynx, mouth, & nasal)
Articulatory STRUCTURES (tongue, teeth,...etc.)
T/F The diaphragm is shaped like a parachute. True
Closes off the larynx Epiglottis
Resonating chambers Throat, mouth, nasal
What do resonating chambers do? Alter sounds & act like a megaphone
T/F Vocal folds are inside the thyroid cartilage True
Word assigned to space between the vocal folds Glotus
Frequency determines What pitch.
Quality determines How healthy and harsh.
Amplitude determines How loud.
Tighter vocal folds = Increased pitch
Sound waves= pressure waves
Physical sound Creates vibrations
Perceptual sound goes into ear canal
2 requirements for sound Vibration & medium
Through which sounds can propagate medium
T/F Any singular molecule travels in its own distance. True
T/F Air particles are not displaced over a large distance. True
Amplitude Loudness ( Decibels & pascals)
Like a rubber ducky- muscle action pulls open lungs, sucking air in. Inhalation
20-25db= Good hearing!
Regular pattern of pressure & speed Periodic
Random variation in pressure and speed Aperiodic
Complex sounds can be Periodic or aperiodic
A 3 dimensional representation of speech used to analyze sounds Spectogram
3 dimensions of speech time, frequency, loudness
Pushing air particles out of lungs exhale
Causes the vibration ('Source of Sound") Phonatory system
Major components of the phonatory system Larynx, hyoid bone, vocal folds
Only bone that doesn't attach to another bone. Important for swallowing. Hyoid bone
Fundamental frequency Hertz, Mass/unit length, Cricothyroid muscle
Pull and stretches vocal folds Cricothyroid muscle
Lowest pitch we can make Fundamental frequency
Mass/Unit Length thicker vocal folds=lower pitch
Rate of vibration per/sec Pitch
215 Hz is the average fundamental frequency of women
2 catagories of hearing loss Sensorineural & Conductive
Hearing loss when there is fraying of hairs. (most common, age related) Sensorineural
Hearing loss when there is fluid in ear. (hearing wave) Conductive
Created by: geh2010



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