Quiz 13

Question 1

The fundamental frequency of a sound wave is the ____ tone in the sound.

Answer 1

lowest

Question 2

Sound waves are ____ waves

Answer 2

Longitudinal

Question 3

What kinds of sound bend around objects easier?

Answer 3

low frequencies

Question 4

How much time is one milli-second?

Answer 4

.001 second

Question 5

A word that describes sound bending around objects is ____.

Answer 5

diffraction

Question 6

When sound wave are allowed to reflect back on themselves, they create_____ waves.

Answer 6

standing

Question 7

In addition to the fundamental frequency, most sounds contain other frequencies that are multiples of the fundamental frequency. These tones are called ______.

Answer 7

over tones and harmonics

Question 8

The inverse square law reveals that sound pressure drops by ____ dB every time you double the distance from the sound source.

Answer 8

6 dB

Question 9

A word that describes sound spreading out.

Answer 9

diffusion

Question 10

Multiple sound reflections that are to close to be heard separately are collectively known as…

Answer 10

reverb

Question 11

Diaphragmatic absorbers and Helmholtz resonators are both…

Answer 11

resonating absorbers

Question 12

Absorption and diffusion can be maximized by using the _____ wavelength theory.

Answer 12

1/4 wavelength theory

Question 13

Quadratic, Schroeder and skyline are all types of:

Answer 13

Diffusors

Question 14

Which are more common. Resonating absorber or pours absorber?

Answer 14

porous absorbers

Question 15

Sound absorption coefficient is a number between 0 and 1, with the measurement of 0 being….

Answer 15

Fully reflective, no absorption

Question 16

The time between the direct sound and the first earliest reflection is called…

Answer 16

pre-delay

Question 17

Reverb time is describe as how long it takes for a sound to decrease ___ dB below it’s original level.

Answer 17

60

Question 18

Today, one can turn the acoustics of a room into an impulse file that can be loaded into ______ reverb system (or plug-in).

Answer 18

Convolution reverb system

Question 19

Another word for Reverb Time is….

Answer 19

Decay time

Question 20

When using “sends” to patch reverb, we will usually want it to be…

Answer 20

post-fader

Question 21

The point in a room where the amount of direct sound pressure is equal to the reflected sound pressure is called…

Answer 21

critical distance

Question 22

The equation that was developed in the late 1890’s that describes what we now call the reverb time is the…

Answer 22

sabine equation

Question 23

Spring and Plate relate to….

Answer 23

Mechanical reverb systems

Question 24

Reverb is usually added to a mix by using _______ patching.

Answer 24

side-chain

Question 25

Most digital reverb devices include high-pass and low-pass adjustments

Answer 25

true

Question 26

Adding acoustic foam like Auralex is best for…

Answer 26

absorption coefficient

Question 27

What is meant by a “sound lock”

Answer 27

a small pass through room or space that separates two studio rooms by 2 doors

Question 28

One of the best ways to improve the transmission loss of a wall is to layer 2 or 3 sheets of materials together. Like screwing 1 or 2 additional layers of sheetrock together. T or F

Answer 28

True

Question 29

The most important thing below for stopping sound transmission is…

Answer 29

mass

Question 30

The “V” in HVAC is for

Answer 30

Ventilation

Question 31

Sound that is conducted through adjoining walls (or other objects) between adjacent rooms is called…

Answer 31

Flaking noise

Question 32

Walls that zig-zag out and back in at non-90 degree angles are referred to as…

Answer 32

splayed