Acoustics pt. 1 Flashcards

1
Q

The branch of physics concerned with sound deals with the production, control, transmission, reception, and effects of sound?

A

Acoustics

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2
Q

3 parts of elements?

A

Sound Source, Transmission Path, and Reciever

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3
Q

Human speech and HVAC equipment?

A

Sound Source

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4
Q

Air, Earth, and Building materials?

A

Transmission Path

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5
Q

Humans, Animals, and Sensitive Medical Equipment?

A

Receiver

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6
Q

Types of Acoustics?

A

Psycho Acoustics, Environmental Acoustics, Electro Acoustics and Sonics

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7
Q

Types of Environmental Acoustics?

A

Architectural/ Room Acoustics and Landscape Acoustics

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8
Q

Is a physical wave or a mechanical vibration, or simply a series of pressure variations in an elastic medium?

A

Sound

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9
Q

The pitch of a sound is generally thought of as the ‘highness’ or ‘lowness’ of a sound?

A

Pitch

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10
Q

The sound fluctuation of these waves, called oscillations, can be measured by the number of wave cycles per second. referred to as the frequency of the sound?

A

Frequency

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11
Q

Frequency is quantified using a unit of measurement known as?

A

Hertz

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12
Q

The distinctive quality, pitch, or condition of a person’s speech produced?

A

Voice

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13
Q

A cartilaginous structure at the top of the trachea?

A

Voice Box/larynx

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14
Q

The human ear can recognize the sounds of frequencies in the range of 20 Hz to 20,000Hz?

A

Audible sound

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15
Q

Sounds of frequencies less than 20 Hz are called?

A

Infrasonic sounds

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16
Q

The sounds of frequencies greater than 20,000 Hz are called?

A

Ultrasonic sounds

17
Q

Height of the sound wave. (our perception of loudness) is influenced by both the frequency and timbre of a sound?

A

Amplitude of sound

18
Q

The unique sound or tone color produced by every instrument and voice is known?

A

Timbre

19
Q

A unit of acoustic absorption equivalent to the absorption by a square foot of a surface that absorbs all incident sound?

A

Sabin

20
Q

High fidelity sound -Accuracy of the sound or image of its input electronic signal?

A

Hi-Fi sound

21
Q

A unit of subjective loudness of pure tones?

A

Phon

22
Q

The interval between one musical pitch and another with half or double its frequency?

A

Octave

23
Q

A local area network that uses high-frequency radio signals to transmit and receive data over distances of a few hundred feet;
uses ethernet (wireless ) protocol?

A

Wi-fi

24
Q

3 major components of acoustics?

A

Ambient noise, Reverberation, and the Signal to noise ratio

25
Q

Basically your ears’ response to the frequency of a sound?

A

Pitch

26
Q

Refers to the quality of a persons voice?

A

Tone of sound

27
Q

Is a physiological sensation. It depends mainly on sound pressure but also on the spectrum of the harmonics and the physical duration?

A

Loudness

28
Q

Transmission of Sound?

A

Sound is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.

29
Q

Is a wave whose oscillations are perpendicular to the direction of the wave’s advance?

A

Transverse wave

30
Q

Comes from the Latin word nausea, meaning seasickness?

A

Noise

31
Q

refers to any sound that is pleasant to the ear?

A

Music

32
Q

Is the local pressure deviation from the ambient (average or equilibrium) atmospheric pressure, caused by a sound wave?

A

Sound pressure or acoustic pressure

33
Q

Also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth?

A

Atmospheric pressure

34
Q

Is used to measure sound level, but it is also widely used in electronics, signals and communication?

A

The decibel (dB)

35
Q

Is a diagram devised by?

A

Harvey Fletcher Hudson and W.A. Munson

36
Q

when two separate sources of sound are perceived simultaneously, the perception of each is made more difficult by the presence of the other?

A

Masking

37
Q

the exact mechanism which the binaural aspect of hearing detects direction is not entirely understood?

A

Directivity