問題一覧
1
Refers to sound waves that travel through the air. Within a bullding or home, airborne sound often stems from people talking, the radio, music, television, or loud pets, among other things,
air-borne sound
2
refers to the unwanted sound that is transmitted from an exterior or neighbouring environment into a space. It can affect the acoustics of a space, which is the relationship between a sound produced in a space and its listeners,
noise
3
In speech or music rooms noise shoutd be low enough so that it will not Interfere with the hearing or the production of speech or music.
human vs noise
4
In offices, factories, and other work rooms, noise should be reduced to levels that will not impair the health, contentment, or efficiency of the workers in these rooms.
human vs environment noise
5
In restaurants, residences, and hospitals quietness Is especlally desirable.
human vs multiple noise
6
involves implementing measures to reduce or eliminate unwanted sound in a given environment.
noise control
7
noise in building what are those (3) principal sources of rooms
people, machinery, outdoor source
8
principal contributors to.noise.in offices, churches, and residences. The largest source of outdoor noise Is generally automoblle traffic
outdoor noise
9
Use other sounds to block out or make the unwanted noise less intrusive.
masking
10
Use materials to truly block the sound, or as much as can be blocked.
reducing
11
Use the properties of the material to alter the sound to make it less disturbing.
absorbing
12
The highest level of noise within a building that neither disturbs its occupants nor Impairs its acoustles
Acceptable noise level
13
The selection of the site for a bullding, the layout of the building itself and the grading and landscaping of the site are indespensable parts of good planning against noise in buildings
siting and planning against noise
14
An earth embankment or a masonry garden wall often can be used to reduce the noise that impinges on a building and aid in the establishment of quiet conditions within the building without resorting to costly measures of sound insulation.
grading and landscaping
15
The location of a building on its site, the arrangement of rooms, corridors and vestibules, and the location of doors and windows, all have a bearing on the control of noise; they require careful consideration.
building layout
16
HOW CAN AIRBORNE SOUND BE REDUCED?
use of acoustic material and sound insulation
17
WHAT CAUSES AIR-BORNE SOUND?
low standard of workmanship
18
EXAMPLE OF ACOUSTIC ABSORPTION MATERIALS: encompassing felts, natural fibers like wool and cotton, and synthetic fibers such as polyester, prove highly effective in mitigating the adverse effects of sound.
fibrous material
19
EXAMPLE OF ACOUSTIC ABSORPTION MATERIALS: wall coverings are easily affixed to walls, while they can also be utilized to cover or suspend from cellings, much like acoustic celling haffles.
commercial acoustic panel
20
EXAMPLE OF ACOUSTIC ABSORPTION MATERIALS: referred to as non-woven fabric, is a synthetic fiber composed of long-chain synthetic polymers.
polyester fiber
21
EXAMPLE OF ACOUSTIC ABSORPTION MATERIALS: composed of small particles of compressed glass or plastic, brings a unique blend of rigidity and lightweight construction, Its versatility allows for installation in confined spaces, making it a practical choice for various applications.
fiberglass
22
EXAMPLE OF SOUND INSULATION MATERIALS:
fiberglass
23
EXAMPLE OF SOUND INSULATION MATERIALS:
mineral wool
24
EXAMPLE OF SOUND INSULATION MATERIALS:
cotton
25
defined as sound that is carried via the structure of a bullding.
structure-borne sound
26
five distinct processes of structure-borne sounds
generation, transmission, propagation, attenuation, radiation