USU COMD 5070--Exam #1 Lectures
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Scientific Method Characteristics - CORRECT ANSWER - 1) Empirical--based on data
2) Deterministic--obeys physical laws
3) Predictive--if you do this, then that will happen
4) Parsimonious--uses simplest explanation possible
Why do SLPs use technology? - CORRECT ANSWER - 1) Overcome listener bias--use
consistent reliable measurement
2) Describe severity objectively
3) Track progress over time
4) ASHA & EBP
5) Provide biofeedback to client
Areas of Speech Science Study - CORRECT ANSWER - 1) Acoustic phonetics
2) Physiological phonetics
3) Speech perception
Acoustic Phonetics - CORRECT ANSWER - Measures of speech production you can get
from microphone recordings and what they can tell us about the way the larynx was operating
and the way the articulators were moving
Physiological Phonetics Areas - CORRECT ANSWER - 1) Kinematics
2) Aerodynamics
3) Electromyography
,Kinematics - CORRECT ANSWER - The study of speech movements
Aerodynamics - CORRECT ANSWER - Pressures, flows, and resistances involved in
regulating our breath stream as we speak
Electromyography - CORRECT ANSWER - Measurement of electrical activity in muscles
as they are activated
Speech Perception - CORRECT ANSWER - The brain's processing and interpretation of
speech sounds.
Frequency - CORRECT ANSWER - How often a waveform repeats
How is frequency measured? - CORRECT ANSWER - Cycles per second (Hz)
What is the simplest possible sound? - CORRECT ANSWER - Pure tone
Complex Tone - CORRECT ANSWER - More than one sign wave--multiple sounds blend
together
Fundamental Frequency - CORRECT ANSWER - Lowest frequency component of a
complex sound
Pitch Perception Characteristics - CORRECT ANSWER - 1) Linked to frequency
2) Is subjective
3) Cannot be measured with instruments
How do you study pitch perception? - CORRECT ANSWER - Listener matches perceived
pitch to that of a pure tone of known frequency.
, Frequency Difference Limens (DL) - CORRECT ANSWER - Smallest detectable change
in frequency
Difference Limens Characteristics - CORRECT ANSWER - 1) Higher frequency sounds
must differ more to be heard as different pitches
2) As intensity increases a larger dB change is needed for us to notice a loudness difference
3) It's more difficult to tell soft sounds apart if they are fairly close in pitch
What does a larger DL mean? - CORRECT ANSWER - A larger DL means that the
physical stimulus must differ more in order to be audible to us.
Complex Tone Characteristics - CORRECT ANSWER - 1) Have many frequencies
2) Fo (fundamental frequency) is often strongest
3) The auditory system responds to all frequencies heard
4) Can be periodic (more pleasant) or not
When perceiving pitch, we are heavily influenced by the ______________. - CORRECT
ANSWER - Fundamental frequency
Harmonics Characteristics - CORRECT ANSWER - 1) Create periodic sounds
2) Are integer multiples
What types of sounds are in the human voice? - CORRECT ANSWER - 1) Fo
2) Harmonics
What happens if a Fo is missing? - CORRECT ANSWER - 1) Sometimes we still perceive
it.
2) Called a residue pitch or missing fundamental
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Scientific Method Characteristics - CORRECT ANSWER - 1) Empirical--based on data
2) Deterministic--obeys physical laws
3) Predictive--if you do this, then that will happen
4) Parsimonious--uses simplest explanation possible
Why do SLPs use technology? - CORRECT ANSWER - 1) Overcome listener bias--use
consistent reliable measurement
2) Describe severity objectively
3) Track progress over time
4) ASHA & EBP
5) Provide biofeedback to client
Areas of Speech Science Study - CORRECT ANSWER - 1) Acoustic phonetics
2) Physiological phonetics
3) Speech perception
Acoustic Phonetics - CORRECT ANSWER - Measures of speech production you can get
from microphone recordings and what they can tell us about the way the larynx was operating
and the way the articulators were moving
Physiological Phonetics Areas - CORRECT ANSWER - 1) Kinematics
2) Aerodynamics
3) Electromyography
,Kinematics - CORRECT ANSWER - The study of speech movements
Aerodynamics - CORRECT ANSWER - Pressures, flows, and resistances involved in
regulating our breath stream as we speak
Electromyography - CORRECT ANSWER - Measurement of electrical activity in muscles
as they are activated
Speech Perception - CORRECT ANSWER - The brain's processing and interpretation of
speech sounds.
Frequency - CORRECT ANSWER - How often a waveform repeats
How is frequency measured? - CORRECT ANSWER - Cycles per second (Hz)
What is the simplest possible sound? - CORRECT ANSWER - Pure tone
Complex Tone - CORRECT ANSWER - More than one sign wave--multiple sounds blend
together
Fundamental Frequency - CORRECT ANSWER - Lowest frequency component of a
complex sound
Pitch Perception Characteristics - CORRECT ANSWER - 1) Linked to frequency
2) Is subjective
3) Cannot be measured with instruments
How do you study pitch perception? - CORRECT ANSWER - Listener matches perceived
pitch to that of a pure tone of known frequency.
, Frequency Difference Limens (DL) - CORRECT ANSWER - Smallest detectable change
in frequency
Difference Limens Characteristics - CORRECT ANSWER - 1) Higher frequency sounds
must differ more to be heard as different pitches
2) As intensity increases a larger dB change is needed for us to notice a loudness difference
3) It's more difficult to tell soft sounds apart if they are fairly close in pitch
What does a larger DL mean? - CORRECT ANSWER - A larger DL means that the
physical stimulus must differ more in order to be audible to us.
Complex Tone Characteristics - CORRECT ANSWER - 1) Have many frequencies
2) Fo (fundamental frequency) is often strongest
3) The auditory system responds to all frequencies heard
4) Can be periodic (more pleasant) or not
When perceiving pitch, we are heavily influenced by the ______________. - CORRECT
ANSWER - Fundamental frequency
Harmonics Characteristics - CORRECT ANSWER - 1) Create periodic sounds
2) Are integer multiples
What types of sounds are in the human voice? - CORRECT ANSWER - 1) Fo
2) Harmonics
What happens if a Fo is missing? - CORRECT ANSWER - 1) Sometimes we still perceive
it.
2) Called a residue pitch or missing fundamental
