COMD 5070 2025/2026 Exam Questions
and Answers | A+ Score Assured
Air Pressure Changes - 🧠 ANSWER ✔✔Alterations in air pressure as sound
travels through air.
Frequency of Sound Wave - 🧠 ANSWER ✔✔Number of vibrations of air
molecules per second.
Intensity of Sound - 🧠 ANSWER ✔✔Power in watts divided by area.
Amplitude of Sound Wave - 🧠 ANSWER ✔✔Height of the sound wave.
Inverse Square Law - 🧠 ANSWER ✔✔Intensity decreases by the square of
the change in distance.
Pitch & Loudness - 🧠 ANSWER ✔✔Perceptual correlates of sound
properties based on listener's experience.
, 20Hz Pitch Difference - 🧠 ANSWER ✔✔Easier pitch distinction with two
lower frequencies.
Human Voice - 🧠 ANSWER ✔✔Complex wave with multiple frequencies.
Fundamental Frequency - 🧠 ANSWER ✔✔Lowest frequency components in
a complex sound.
Loudness of Sound - 🧠 ANSWER ✔✔Related to air pressure change,
frequency, and duration.
Analog Signal - 🧠 ANSWER ✔✔Continuous signal in time.
Digital Signal - 🧠 ANSWER ✔✔Signal represented by discrete values.
Digital to Analog Conversion - 🧠 ANSWER ✔✔Necessary for playing
analog sound waves.
Quantization - 🧠 ANSWER ✔✔Assigning digital values to waveform
amplitudes.
32-bit System - 🧠 ANSWER ✔✔Has over four billion quantization levels.
Aliasing in Digital Recording - 🧠 ANSWER ✔✔High frequency wave
recorded at a different frequency.
and Answers | A+ Score Assured
Air Pressure Changes - 🧠 ANSWER ✔✔Alterations in air pressure as sound
travels through air.
Frequency of Sound Wave - 🧠 ANSWER ✔✔Number of vibrations of air
molecules per second.
Intensity of Sound - 🧠 ANSWER ✔✔Power in watts divided by area.
Amplitude of Sound Wave - 🧠 ANSWER ✔✔Height of the sound wave.
Inverse Square Law - 🧠 ANSWER ✔✔Intensity decreases by the square of
the change in distance.
Pitch & Loudness - 🧠 ANSWER ✔✔Perceptual correlates of sound
properties based on listener's experience.
, 20Hz Pitch Difference - 🧠 ANSWER ✔✔Easier pitch distinction with two
lower frequencies.
Human Voice - 🧠 ANSWER ✔✔Complex wave with multiple frequencies.
Fundamental Frequency - 🧠 ANSWER ✔✔Lowest frequency components in
a complex sound.
Loudness of Sound - 🧠 ANSWER ✔✔Related to air pressure change,
frequency, and duration.
Analog Signal - 🧠 ANSWER ✔✔Continuous signal in time.
Digital Signal - 🧠 ANSWER ✔✔Signal represented by discrete values.
Digital to Analog Conversion - 🧠 ANSWER ✔✔Necessary for playing
analog sound waves.
Quantization - 🧠 ANSWER ✔✔Assigning digital values to waveform
amplitudes.
32-bit System - 🧠 ANSWER ✔✔Has over four billion quantization levels.
Aliasing in Digital Recording - 🧠 ANSWER ✔✔High frequency wave
recorded at a different frequency.
