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Bryx_EST > Acoustics > Flashcards

Acoustics Flashcards

1
Q

A branch of physics that studies sound, namely mechanical waves in gases, liquids and solids

A

Acoustics

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2
Q

The Father of Modern Architectural Acoustics

A

Wallace Clement Sabine

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3
Q

A physical phenomenon that stimulates the sense of hearing

A

Sound

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4
Q

It is considered the most obvious conveyor of information whether cognitive or affective

A

Speech Sound

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5
Q

A sound signal that contains no information at all making it unwanted or undesired

A

Noise

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6
Q

Attribute of auditory sensation in terms of which sound may be ordered on a scale related primarily to frequency

A

Pitch

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7
Q

It is the unit of pitch

A

Mel

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8
Q

An observer’s auditory impression of the strength of a sound

A

Loudness

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9
Q

Measured by the sound pressure level of a standard pure tone of specified frequency

A

Loudness Level

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10
Q

The unit of loudness level

A

Phon

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11
Q

The unit of loudness on a scale designed to give scale numbers approximately proportional to the loudness

A

Sone

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12
Q

Formula relation of Sone and Phon

A

Phon = 40 + 10 log₂ (sone)

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13
Q

The characteristic tonal quality of sound

A

Timbre

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14
Q

A sound in which sound pressure varies sinusoidally with time

A

Pure Tone

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15
Q

The speed of sound

A

Tempo

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16
Q

It relates to a sonic time pattern, maybe simple, complex, constant or changing

A

Rhythm

17
Q

The way a sound begins

A

ATTTTTAAACK!

18
Q

Refers to how long a sound blasts

A

Duration

19
Q

Refers to how fast a sound fades from certain loudness

A

Decay

20
Q

Sound waves that are periodic disturbance of the medium through which they travel

A

Longitudinal Waves

21
Q

Light or Radio waves in which the medium is displaced perpendicular to the direction of travel

A

Transverse Waves

22
Q

The maximum displacement involved in the vibration

A

Amplitude of the wave

23
Q

Sounds with frequencies lower than that audible

A

Subsonic or infrasonic

24
Q

Sounds whose frequencies lie within the audio spectrum

A

Sonic sounds

25
Q

A velocity greater than sound velocity

A

Supersonic

26
Q

Human hearing range

A

20 Hz to 20 kHz approximately 10 octave bands

27
Q

Octaves of Bass, Midrange and Treble

A 
Bass = 1st to 4th octave band
Midrange = 5th to 8th octave band
Treble = 9th to 10th octave band
28
Q

The maximum intelligibility for voice frequency

A

1000 to 3000 Hz

29
Q

The maximum voice energy

A

250 to 500 Hz

Bryx_EST (5 decks)

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