SOUND PROOFING AND SOUND-ABSORBING

Question 1

Refers to stopping sound from bouncing around a room

_____ materials absorb most of the sound energy that collides with them and reflect very little

Answer 1

SOUND ABSORPTION

SOUND-ABSORBING

Question 2

Types of sound absorbing materials

Answer 2

• POROUS ABSORBERS
• MEMBRANE/PLATE ABSORBERS
• RESONANCE ABSORBERS

Question 3

Refers to blocking sound so that it can’t travel from room to room

Answer 3

SOUNDPROOFING

Question 4

Soundproofing involves four concepts:

Answer 4

DECOUPLING
ABSORBING
ADDING MASS
DAMPING

Question 5

A form of soundproofing

Answer 5

SOUND ABSORPTION

Question 6

A thin strip of metal bent to form a spring-like channel.

Answer 6

RESILIENT CHANNEL

Question 7

Has a profile like Fedora, made of galvanized steel or aluminum, and formed into a furring strip-like channel

Answer 7

HAT CHANNEL

Question 8

Contain a rubber section that separates a metal clip from the stud or joist to provide a vibrational sound barrier

Answer 8

SOUND ISOLATION CLIPS

Question 9

Materials with a high sound absorption coefficient are usually _____

Answer 9

POROUS ABSORBERS

Question 10

Convert incident sound energy into heat energy through frictional and viscous resistance in the fibrous or cellular structure of the material

Answer 10

POROUS ABSORBERS

Question 11

Air impervious, non-rigid, non-porous material that’s placed over an airspace

Answer 11

MEMBRANE/PLATE ABSORBER

Question 12

To combat sound in a narrow yet defined frequency range

Focus on issues related to bass frequencies

Answer 12

RESONANCE ABSORBERS

Question 13

Coca cola bottle

Answer 13

RESONANCE ABSORBER

Question 14

Material: wood, hardboard paneling, suspended plaster ceilings, wood doors, gypsum boards, and wood floors

Answer 14

MEMBRANE/PLATE ABSORBERS

Question 15

Mineral wool, carpets, fibreboards, insulation blankets, and certain forms of foam plastic

Answer 15

POROUS ABSORBERS