Properties of Sound and Sound Transmission

6 Questions

Match the following sound properties with their definitions:

Speed = Sound travels at 1130 ft. per second or 344 m. per second at normal room temperature Intensity = Rate at which sound energy is being transmitted, measured at any point in the medium Frequency = The number of displacements or oscillations that a particle undergoes in 1 second Loudness = Subjective attribute of an auditory sensation in terms of which sounds may be ordered on a scale of soft to loud

Match the following units of measurement with their respective sound properties:

Decibel = Unit in which sound intensity is defined for architectural purposes Decibel-meter = Instrument by which sound intensity is measured Hertz = Unit of frequency; numerically equal to cycles per second Sound Pressure = The fluctuation in the atmospheric pressure caused by the vibration of air particles due to a sound wave

Match the following auditory thresholds with their definitions:

Threshold of Audibility = Minimum intensity that is capable of evoking an auditory sensation in the ear Threshold of Pain = Minimum sound pressure level which stimulates the ear to a point which is painful Pitch = The attribute of an auditory system which enables us to pinpoint sounds on a scale extending from high to low frequency Tone = Sound sensation having pitch

Match the following sound properties with their components:

Source, path, and receiver = Components that sound must always have Denser media = Medium in which sound travels faster Atmospheric pressure = Fluctuation caused by the vibration of air particles due to a sound wave Auditory system = Enables us to pinpoint sounds on a scale extending from high to low frequency

Match the following descriptions with their corresponding sound properties:

Sound Pressure = Fluctuation in the atmospheric pressure caused by the vibration of air particles due to a sound wave Pitch = Attribute enabling us to pinpoint sounds on a scale extending from high to low frequency Loudness = Subjective attribute of an auditory sensation in terms of which sounds may be ordered on a scale of soft to loud Threshold of Pain = Minimum sound pressure level which stimulates the ear to a point which is painful

Match the following units of measurement with their definitions:

Hertz = Unit of frequency; numerically equal to cycles per second Decibel-meter = Instrument by which sound intensity is measured Decibel = Unit in which sound intensity is defined for architectural purposes Intensity = Rate at which sound energy is being transmitted, measured at any point in the medium

Study Notes

Sound Properties

Sound properties are characteristics of sound waves that describe their physical and perceptual attributes
Examples of sound properties include amplitude, frequency, wavelength, speed, and timbre

Units of Measurement

Units of measurement are used to quantify sound properties
Examples of units of measurement include decibels (dB) for loudness, hertz (Hz) for frequency, and meters (m) for wavelength

Auditory Thresholds

Auditory thresholds are the minimum sound levels that can be perceived by the human ear
Examples of auditory thresholds include the threshold of hearing (TOH) and the threshold of pain (TOP)

Sound Components

Sound components are the individual elements that make up a sound wave
Examples of sound components include frequency, amplitude, and waveform

Sound Descriptions

Sound descriptions are verbal descriptions of sound properties or characteristics
Examples of sound descriptions include "loud", "high-pitched", and "raspy"

Measurement Definitions

Definitions of measurement units provide context for understanding sound properties
Examples of measurement definitions include "decibel: a unit of measurement for loudness" and "hertz: a unit of measurement for frequency"