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ASLP 3030 Exam 3 Review Questions and Answers 100% Solved | Rated A+
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ASLP 3030 Exam 3 Review Questions and Answers 100% Solved | Rated A+ Decibel Scale - o Expresses a range of different levels of sound energy Intensity - o Amount of acoustic energy that strikes a given area (watts/m^2) How many db IL is a measured intensity of 10^-10? - Intensity measured (Im...

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  • September 15, 2024
  • 11
  • 2024/2025
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ASLP 3030 Exam 3 Review Questions

and Answers 100% Solved | Rated A+


Decibel Scale - ✔✔o Expresses a range of different levels of sound energy

Intensity - ✔✔o Amount of acoustic energy that strikes a given area

(watts/m^2)

How many db IL is a measured intensity of 10^-10? - ✔✔Intensity

measured (Im) = 10^-10

Intensity reference (Ir) = 10^-12

dB IL = 10log (10^-10/10^-12)

10 log (10^-10(-12) OR 10 log (10^2)

10 (2) OR 20dB

How many dB SPL is a measured sound pressure of 25 uPa? - ✔✔dB SPL

= 20log(25/20)

20log (1.25)

20(0.09691)

dB SPL = 1.9

, Root Mean Square RMS Amplitude - ✔✔o Mean amplitude over a given

time period

Psychoacoustics - ✔✔Study of the perception of sound

Percept - ✔✔o Mental representation of the real-world phenomenon

"What the ear drum captures vs. what we think we hear"

Bottom-Up Processing - ✔✔o Refers to processing sensory information as

it is coming in

Top-Down Processing - ✔✔o Refers to processing sensory information as

it is coming in

Threshold - ✔✔o Used to identify a driving line between two "states"

Absolute Threshold - ✔✔o Minimum stimulation needed to register a

particular stimulus 50% of the time

Threshold of Pain - ✔✔o Threshold at which a stimulus is perceived as

painful

Difference Threshold - ✔✔o Amount by which one stimulus must be

different from another person to notice that the two stimuli are different

o Just noticeable difference (JND)

Limen - ✔✔o A threshold below which a stimulus is not perceived or is not

distinguished from another

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