Effectiveness audio and visual in space based on type of building.

1. Audio and Visual
Bangunan Perpustakaan Raja Tun Uda, Shah Alam

2. Site Background
• Selangor Public Library
• Move to Shah Alam on 16
November 1986. On
March 15 1988, the library
is named Raja Tun Uda
Library and opens to the
public.
• Already 24 years old.

3. Space Allocation
• The Main Entrance to the Library Raja Tun Uda, Reading Rooms of
Newspapers and Magazines, Children's Space, Location Of The Cook books.
• Space-Visual Equipment, Counter Books & The Reading Room
• Reference Section, Reading Room & The Spacious Lounge

4. UBBL Requirement Natural
Lighting
• Every room designed, adapted or used for
residential, business or other purposes except
hospitals and school shall be provided with
natural lighting and natural ventilation by means
of one or more windows having a
of such
room and shall have openings capable of
allowing a free uninterrupted passage of air of
not less than 5% of such floor area.

5. Natural and Artificial Lighting
Indirect sun ray softly illuminates some of the
reading areas at the Selangor Public Library.
Indirect lighting illuminates some of the
reading areas in the Selangor Public Library.
Providing low glare lighting.

6. Visual-Lighting Design
• Fluorescent Lamp
- Fluorescent lamps produce light by passing an
electric current through a gas inside a glass tube
- Fluorescent sources are efficient (produce a lot
of light for each watt of electric power they
consume) and they have very long life

7. Incandescent Lamp
•produce light by passing an electric current through a filament;
when the filament gets hot enough, it radiates visible light
•Incandescent lamps are very inefficient and have relatively short
lamp life, but they have a familiar warm yellowish color of light
that is often associated with non-institutional environments
•Tungsten-halogen lamps are special types of incandescent
lamps that have a whiter color of light and somewhat-longer lamp
life, but they are still relatively inefficient.
•Some designers like to use a small number of incandescent
lamps in lounges or lobbies to make the library feel less
institutional

8. High Intensity Discharge Lamp
•HID sources include metal halide lamps and high-pressure sodium
lamps.
•Both types of lamps produce light by energizing a gas inside the
lamp
•HID sources are energy efficient and have long life, but until recently
their color has not been very acceptable.
•As these lamps become available in a wider range of sizes and
wattages, they will become increasingly common in library interiors

9. Maintenance
•For the maintenance this library will
change their light bulb if no damage
and they will change all their light bulb
.
•every they will check all the
wiring system to make sure the wiring
system is in good condition
•The maintenance will clean up all the
window to make sure it
will give maximum natural lighting

10. Luminance Level
LUX meter
- density of luminous flux reaching a surface
- ILLUMINANCE (E) is the density of luminous flux
reaching a surface.
- UNIT: lux (lx) where 1 lux = 1 lumen/(metre)2

11. Recommended Light Level
Area Lumen/m2
Public areas with dark 20 – 50
surroundings
Working areas where visual 100 – 150
tasks are only occasionally
performed
Warehouses, Homes, Theaters, 150
Archives
Normal Office Work, PC Work, 500
Study Library, Groceries, Show
Rooms, Laboratories
Supermarkets, Mechanical 750
Workshops, Office Landscapes
• Sourced: engineeringtoolbox.com

12. Luminance Level
Room Section Total Flux Area Of The Illuminance On
Reaching Surface Surface (m2) Surface (lx)
(lm)
Gateway level 10,5180.3 1,301 80.08
Middle level 9,6340 1,211 70.96
Lower level 8,1810 1,245 60.57
TOTAL 220.61
• Average Luminance on Surface Library Raja Tun Uda.

13. Conclusion
• The recommendation suitable
luminance is 500 for the library
purposes. Data collected only
220.61 of its luminance. So it not
following the recommendation
• This defect will affecting to the
public .
• The management have to add more
light to resolve this matter.

14. Library-Noise Level
The acoustical design issues for libraries involve the following principal issues:
• Site noise-depending to the area
• Establishing noise standards depending on the space
• Room acoustics considerations.
• Sound isolation between various use spaces.
• Vibration control for mechanical equipment.
• Audio/visual system considerations.
Standard Library Sound Pressure Level is below

15. Library’s Acoustic
Recommended Background Noise Levels in Library Spaces
Noise Criteria (NC) used in acoustic design.

16. Sound Insulation
Lay-In Acoustical Ceiling Tile
Some absorptive materials are attractively designed to be
exposed to view, such as normal suspended ceiling tiles.
Generally, thicker porous materials provide better sound
absorption.

17. Use of Carpet
Different type of carpet used to covered floor in Library
Raja Tun Uda. Also small picture shows carpet put
above step staircase.

18. Use of Other Fabric
Fabric Used in Library Raja Tun Uda.

19. Maintenance
•For the acoustic maintenance this
library will change all the acoustic
material like carpet to mane sure the
acoustic material will be in good
condition (normally done once within
10 years)
•They will clean up their carpet every
day
•They will make sure all the fabrics in
good condition (regularly check and
change)

20. Types of Sound Level Meter.
Need proper handling avoid :-
•Microphone mishandling
•Background noise
•Wind noise
•Temperature
•Humidity & dust
•Reflection from nearby surface

21. The Average Noise (dB) on
Certain Point in Library Raja
Tun Uda.
70 72 54
Referring to the data collected:
56
54
65
55 -Majority of the noise is below
53
55 56 44 60 dB.
46 57 60 61 50 -Showing that the sound
50 49
absorption is working properly
0
57
inside the library.
49
55
51 58 - no defect related to the sound
55 absorption
63 70
50 56
57 -User really feel comfortable
58 63
to use the library
59 63

22. Conclusion
• The general design, fitting design and management
for the audio and visual is playing a major role to the
building.
• Every building designed based on their function.
Considering the type of occupants and its function,
the building must fit for its purpose.
• The performance and defect of a building is affecting
the occupants so any defects or faulty must be
rectified to ensure the building can be use for a long
time.