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COMD 5070 Exam prep Test| Study Questions with complete Solution| Verified Answers
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COMD 5070 Exam prep Test| StudyQuestions with complete Solution|
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Vocal tract transfer function - ANSWER The change in sound between entering the vocal tract
and the one leaving it (output minus input). It is the difference that the vocal tract makes to the
sound that left the larynx.
Formants - ANSWER -resonance peaks in transfer function
-some frequencies are amplified so that they are more
prominent -there can be many for any vowel -they do not create
the sound
-they shape or alter
-the first 2 or 3 are of primary interest
-the formants on an output spectrum identify a specific vowel
"Spillover effects" of source-tract interactions - ANSWER -in conditions such as Parkinson's
disease the result of hypokinetic dysarthria causes:
-weak, monotone voice
-imprecise consonant articulation
-treated by increasing loudness which naturally improves articulation
spasmodic dysphonia - ANSWER -a neurolaryngological disorder
-spasms cause strained, strangled voice
-medical treatment is laryngeal injections of botox, does not respond to speech therapy
muscle tension dysphonia - ANSWER -creates tight, strangled sounding voice
, -excessive neck muscle activity
-treated by laryngeal massage
analog signals - ANSWER -continuous in time and amplitude
-no gaps so there are infinite points in time, *infinite
amplitude values,
*cannot be fully represented by a table of
numbers *only a graph can really represent them
Analog devices - ANSWER microphone/speakers
clocks or watches with hands mercury
thermometer
tape measure
cassette recorder
dimmer light switch
Digital signals - ANSWER -discrete in time and
amplitude -numbers represent snapshots over time
-numbers have finite precision (limited number of decimal places)
-can be fully represented by a table of numbers
-unknowns between the points
Digital devices - ANSWER digital clock
computer
CD
Sound conversion - ANSWER ADC - analog to digital conversion
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