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ComD 5070 Exam 1 Study Guide modules 1-5 Questions & Answers(RATED A+) $13.09   Add to cart

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ComD 5070 Exam 1 Study Guide modules 1-5 Questions & Answers(RATED A+)

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  • ComD 5070
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  • ComD 5070

• what is science?4 features of the scientific method - ANSWER-1) EMPIRICAL - based on data 2) DETERMINISTIC - obeys physical laws 3) PREDICTIVE - if you this....then that will happen 4) PARSIMONIOUS - use the simplest explanation poss. • SLPs' use of technology [why do we use it clinical...

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  • August 23, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • ComD 5070
  • ComD 5070
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ComD 5070 Exam 1 Study
Guide modules 1-5 Questions
& Answers(RATED A+)
• what is science?4 features of the scientific method - ANSWER-1) EMPIRICAL - based on data

2) DETERMINISTIC - obeys physical laws

3) PREDICTIVE - if you this....then that will happen

4) PARSIMONIOUS - use the simplest explanation poss.



• SLPs' use of technology [why do we use it clinically? how can acoustics help?] - ANSWER--
OVERCOME LISTENER BIAS. Consistent, reliable measurement is provided by analysis.

- Use OBJECTIVE TERMS AND MEASURES TO DESCRIBE THE SEVERITY of a disorder objectively. We
can standardize our measurements of speech since we have objective criteria to measure each
patient against.

- TRACK PROGRESS over time, and DEMONSTRATE TREATMENT EFFICIENCY.

- EBP (Evidence Based Practice). We measure the client's performance before and after therapy in
order to objectively prove that the treatment was effective.

- PROVIDE BIOFEEDBACK to the client. Show the person what they are doing on a computer display in
real time, and can help them change behavior.



How can acoustics help in the SLPs use of technology? - ANSWER-1) ACOUSTIC PHONETICS-
measuring of speech production through MICROPHONE RECORDINGS and studying what it can tell us
about the way the larynx is operating or the articulators are moving.

2) PHYSIOLOGOCAL PHONETICS -

• KINEMATICS - study of SPEECH MOVEMENTS

• AERODYNAMICS - PRESSURE, FLOW and RESISTANCE we use to regulate our breath stream as we
speak.

• ELECTROMYOGRAPHY - the ELECTRICAL ACTIVITY OF MUSCLES as they are activated

3) SPEECH PERCEPTION - the aspects of signal processing of the brain. We will DRAW PARALELLS
FROM the PERCEPTUAL ASPECTS of speech understanding and the ACOUSTICAL TECHNIQUES that we
use to evaluate a speech signal in a quantitative way.

,How is pitch perception linked to frequency? - ANSWER-1. We interpret higher frequency sounds to
have a higher pitch

FREQUENCY - OBJECTIVE

PITCH - SUBJECTIVE cannot be measured




Define loudness? What is it affected by? - ANSWER-Loudness is a PERCEPTUAL CHARACTERISTIC of
sound

- CanNOT BE MEASURED by equipment

- JUDGED BY LISTENER; it's a human response

- DURATION AFFECTS PERCEPTION of loudness

1. The LONGER the sound, the more the ear integrates the energy and the MORE AUDIBLE it
becomes

- Individual responses vary slightly regarding loudness because it is SUBJECTIVE

1. There is no way to objectively measure loudness of sound



What is intensity? - ANSWER-The GREATER the intensity, the LOUDER we perceive it to be

a. Intensity is an ACOUSTIC measure



How is intensity measured? - ANSWER-- Its the amplitude or 'size' of a sound

- Measured in dB

- LOGARITHMIC scale

- Intensity Level (IL)

- Sound Pressure Level (SPL)



What do SLPs and audiologists use to measure intensity? - ANSWER-A sound level meter



How many dBs of intensity does it take to be perceived as twice as loud? - ANSWER-6-10 dB
INCREASE in intensity will be PERCIEVED as TWICE AS LOUD (doubling of loudness)



What affects the perception of loudness? - ANSWER-- DURATION affects perception of loudness

, a. The LONGER the sound, the more the ear integrates the energy and the MORE AUDILBE it
becomes

- Individual responses vary slightly regarding loudness because it is subjective

a. There is no way to objectively measure sound



What are the difference limens for frequency and intensity? - ANSWER-SMALLEST DETECTABLE
CHANGE in frequency a person can perceive.



What is frequency? - ANSWER-1. It is determined by HOW FREQUENTLY a WAVEFORM REPEATS
ITSELF OVERT TIME

2. Measured in HERTZ (Hz) = cycles per second (CPS)

a. Acoustic Measures



How do waveforms differ as frequency goes up and down? - ANSWER-The HGHER FREQUENCY the
frequency, the MORE COMPLETE CYCLES per second

a) The waveforms are CLOSER together



How are difference limens influenced by intensity, duration, etc.? - ANSWER-DLs INCREASE with
stimulus FREQUENCY

- As INTENSITY DECREASES, DLs become LARGER

- HIGHER FREQUENCY sounds MUST DIFFER MORE to be heard as different in pitch

• true for comfortable listening level

- Measured at a comfortable level and reduce amplitude of sound played; difference limens become
GREATER WITH SOFTER SOUNDS.

-



T/F. When sounds are very soft it is harder to tell them apart in their pitch if close in frequency. -
ANSWER-TRUE



Another term for the missing fundamental is? - ANSWER-RESIDUE PITCH



T/F A fundamental must always be present within a recorded sound? - ANSWER-FALSE

- When FUNDAMENTAL IS ABSCENT from a harmonic series, THE BRAIN STILL PROCESSES the
harmonic structure and FILLS IN THE GAP.

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