Exam (elaborations)
USU Comd 5070 Exam With 100% Accurate Answers
- Institution
- USU Comd 5070 Exam With 100% Accurate Answers
USU Comd 5070 Exam With 100% Accurate Answers
[Show more]
Content preview
USU Comd 5070 Exam With 100%Accurate Answers
Source filter model (4) - -~ the larynx serves as the sound source and its
output is then sent into the vocal tract which filters it.
~ larynx on its on cant produce any sound unless there is pressure driving it
~ pressure comes from the lungs
~ vocal tract doesn't just filter but resonates or enhances some sounds
-Pitch (2) - -Stretch the vocal folds to increase their tension and therefore
increase the frequency at which they will vibrate
~ Contracting the cricothyroid muscle
-Whisper (2) - -~ push air to cause turbulence
~ lungs provide pressure and the vocal folds create constriction to cause
turbulence
-Phonation - -vibration of vocal fold caused from pressure from lungs
-Fundamental Frequency - -~ the rate at which your vocal folds oscillate
Men: 100-120 times per second
Women: Double that
-Harmonics - -~ What comes out: the Fundamentals plus the Harmonic
components.
~ Exact multiples of the FF
~ If the FF is higher then the space between the harmonics is bigger
-Harmonic Spectral Slope - -The Fundamental is the strongest element and
the increasing harmonics get weaker.
-Typical Voice - -12 db per octave
-Tubes (5) - -~ they don't generate sounds, they are not a sound source
~ They shape or alter the sound source that enters it
~ Frequency is the best based on the size of the tube
~ Best resonance come from a frequency that is 4X the length of that tube
~ Tubes that are small will have a higher wavelength and tubes that are long
will have a lower wavelength
-Articulating - -~ you are changing the size and shape of the vocal tract
along its length (tongue)
, -Vocal Tract Transfer Function (4) - -~the difference between the sound that
enters the vocal tract and the sound that exits.
~ Input to the vocal tract comes from the larynx
~ Output of the vocal tract is what we can hear and record at the lips
~ Output minus the Input
-Formants (4) - -~ a resonant peak in the vocal tract transfer function
~ some frequencies in a given range are amplified in their amplitude such
that they are more prominent than other sounds in the spectrum.
~ there are many for any given vowel but the first 2-3 are looked at the most
~ it is not a sound source, instead it is showing how the vocal tract is
shaping that sound that the larynx gave to it
-Hypokinetic Dysarthria (3) - -~ Related to Parkinson's Disease
~ Weak, monotone voice
~ Treated through 1 Stop Shopping
-Spasmodic Dysphonia (3) - -~ neurolaryngological disorder
~ Strained or strangled voice
~ Treated medically by laryngeal injection
-Muscle Tension Dysphonia (3) - -~ tight pressured voice
~ Creates excessive muscle activity
~ Treated by laryngeal massage
-Analog - -~ Means Analogy: one phenomenon is representative of another
-Microphone (4) - -~ the microphone signal that travels through a wire is
analogous to the pressure that reaches the microphone.
~ It is a transducer: its converting energy from one source to another. The
pressure that reaches the microphone is then changed into and electrical
signal
~ large positive voltage means compression
~ large negative voltage means air rarefaction
-Analog Signals (2) - -~ Continuous in Time and Amplitude: which means
that you could zoom in at any point and not see any gaps
~ Because it is infinite you could not represent it in a table of number
-Digital Signals (4) - -~ they are discrete in Time and Amplitude: a group of
separate numbers that are recorded in one long string (snapshots)
~ Numbers have a finite precision (they have a limited number of decimal
places)
~ They can be represented by a table of numbers.
~ Limitation: you can never know what happens between numbers having a
series of unknowns (DVD).
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £9.96. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80461 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now