USU COMD 5070--Exam #1 Lectures
2025 Questions and Answers
Scientific Method Characteristics - --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? - --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 - --Answer --1) Acoustic phonetics
2) Physiological phonetics
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,3) Speech perception
Acoustic Phonetics - --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 - --Answer --1) Kinematics
2) Aerodynamics
3) Electromyography
Kinematics - --Answer --The study of speech movements
Aerodynamics - --Answer --Pressures, flows, and resistances involved in
regulating our breath stream as we speak
Electromyography - --Answer --Measurement of electrical activity in muscles
as they are activated
Speech Perception - --Answer --The brain's processing and interpretation of
speech sounds.
Frequency - --Answer --How often a waveform repeats
How is frequency measured? - --Answer --Cycles per second (Hz)
What is the simplest possible sound? - --Answer --Pure tone
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,Complex Tone - --Answer --More than one sign wave--multiple sounds
blend together
Fundamental Frequency - --Answer --Lowest frequency component of a
complex sound
Pitch Perception Characteristics - --Answer --1) Linked to frequency
2) Is subjective
3) Cannot be measured with instruments
How do you study pitch perception? - --Answer --Listener matches
perceived pitch to that of a pure tone of known frequency.
Frequency Difference Limens (DL) - --Answer --Smallest detectable change
in frequency
Difference Limens Characteristics - --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? - --Answer --A larger DL means that the
physical stimulus must differ more in order to be audible to us.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
, Complex Tone Characteristics - --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 ______________. - --
Answer --Fundamental frequency
Harmonics Characteristics - --Answer --1) Create periodic sounds
2) Are integer multiples
What types of sounds are in the human voice? - --Answer --1) Fo
2) Harmonics
What happens if a Fo is missing? - --Answer --1) Sometimes we still perceive
it.
2) Called a residue pitch or missing fundamental
3) The brain processes the entire harmonic structure regardless.
Characteristics of Pitch Perception in Music - --Answer --1) Different
octaves are recognizable because the relationship between the notes is the same
anywhere on the scale
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
2025 Questions and Answers
Scientific Method Characteristics - --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? - --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 - --Answer --1) Acoustic phonetics
2) Physiological phonetics
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,3) Speech perception
Acoustic Phonetics - --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 - --Answer --1) Kinematics
2) Aerodynamics
3) Electromyography
Kinematics - --Answer --The study of speech movements
Aerodynamics - --Answer --Pressures, flows, and resistances involved in
regulating our breath stream as we speak
Electromyography - --Answer --Measurement of electrical activity in muscles
as they are activated
Speech Perception - --Answer --The brain's processing and interpretation of
speech sounds.
Frequency - --Answer --How often a waveform repeats
How is frequency measured? - --Answer --Cycles per second (Hz)
What is the simplest possible sound? - --Answer --Pure tone
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
,Complex Tone - --Answer --More than one sign wave--multiple sounds
blend together
Fundamental Frequency - --Answer --Lowest frequency component of a
complex sound
Pitch Perception Characteristics - --Answer --1) Linked to frequency
2) Is subjective
3) Cannot be measured with instruments
How do you study pitch perception? - --Answer --Listener matches
perceived pitch to that of a pure tone of known frequency.
Frequency Difference Limens (DL) - --Answer --Smallest detectable change
in frequency
Difference Limens Characteristics - --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? - --Answer --A larger DL means that the
physical stimulus must differ more in order to be audible to us.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
, Complex Tone Characteristics - --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 ______________. - --
Answer --Fundamental frequency
Harmonics Characteristics - --Answer --1) Create periodic sounds
2) Are integer multiples
What types of sounds are in the human voice? - --Answer --1) Fo
2) Harmonics
What happens if a Fo is missing? - --Answer --1) Sometimes we still perceive
it.
2) Called a residue pitch or missing fundamental
3) The brain processes the entire harmonic structure regardless.
Characteristics of Pitch Perception in Music - --Answer --1) Different
octaves are recognizable because the relationship between the notes is the same
anywhere on the scale
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
