Acoustics pt. 1

Question 1

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

Answer 1

Acoustics

Question 2

3 parts of elements?

Answer 2

Sound Source, Transmission Path, and Reciever

Question 3

Human speech and HVAC equipment?

Answer 3

Sound Source

Question 4

Air, Earth, and Building materials?

Answer 4

Transmission Path

Question 5

Humans, Animals, and Sensitive Medical Equipment?

Answer 5

Receiver

Question 6

Types of Acoustics?

Answer 6

Psycho Acoustics, Environmental Acoustics, Electro Acoustics and Sonics

Question 7

Types of Environmental Acoustics?

Answer 7

Architectural/ Room Acoustics and Landscape Acoustics

Question 8

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

Answer 8

Sound

Question 9

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

Answer 9

Pitch

Question 10

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?

Answer 10

Frequency

Question 11

Frequency is quantified using a unit of measurement known as?

Answer 11

Hertz

Question 12

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

Answer 12

Voice

Question 13

A cartilaginous structure at the top of the trachea?

Answer 13

Voice Box/larynx

Question 14

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

Answer 14

Audible sound

Question 15

Sounds of frequencies less than 20 Hz are called?

Answer 15

Infrasonic sounds

Question 16

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

Answer 16

Ultrasonic sounds

Question 17

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

Answer 17

Amplitude of sound

Question 18

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

Answer 18

Timbre

Question 19

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

Answer 19

Sabin

Question 20

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

Answer 20

Hi-Fi sound

Question 21

A unit of subjective loudness of pure tones?

Answer 21

Phon

Question 22

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

Answer 22

Octave

Question 23

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?

Answer 23

Wi-fi

Question 24

3 major components of acoustics?

Answer 24

Ambient noise, Reverberation, and the Signal to noise ratio

Question 25

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

Answer 25

Pitch

Question 26

Refers to the quality of a persons voice?

Answer 26

Tone of sound

Question 27

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

Answer 27

Loudness

Question 28

Transmission of Sound?

Answer 28

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

Question 29

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

Answer 29

Transverse wave

Question 30

Comes from the Latin word nausea, meaning seasickness?

Answer 30

Noise

Question 31

refers to any sound that is pleasant to the ear?

Answer 31

Music

Question 32

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

Answer 32

Sound pressure or acoustic pressure

Question 33

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

Answer 33

Atmospheric pressure

Question 34

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

Answer 34

The decibel (dB)

Question 35

Is a diagram devised by?

Answer 35

Harvey Fletcher Hudson and W.A. Munson

Question 36

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

Answer 36

Masking

Question 37

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

Answer 37

Directivity