acoustics

Question 1

how to mitigate vibration?

Answer 1

create separations between spaces

Question 2

how to provide isolation?

Answer 2

gaskets, springs

Question 3

how to provide massiveness?

Answer 3

provide thickness, ie. concrete

Question 4

live sound

Answer 4

reverb, bounces off of surfaces
good for music, bad for talking

Question 5

dead sound

Answer 5

quiet, no echos, crisp sounds

Question 6

live vs dead sound

Answer 6

good for diff types of spaces, usually want a balance of the twoa

Question 7

cavities

Answer 7

sometimes needed, would be specific size/use

Question 8

STC

Answer 8

sound transmission class
sound moving from one space to another through an assemble
STC 45-60 typ., the higher the better
goal is to separate and isolate noises

Question 9

NRC

Answer 9

noise reduction coefficient
goal is to reduce noise within a space
diffuse noise within space
usually related to ceiling, try to deaden sound

Question 10

IIC

Answer 10

impact insulation class
noise transfer from an impact into another space
usually relates to floor & vibration from impact travels through assembly and makes sound in another space
try to deaden within assembly