NATURAL LIGHTING AND APPLIED ACOUSTICS- ARC 256
SPACE REFURBISHMENT – RADIO
STATION
ANKRAH ANITA
YEAR TWO
ARCHITECTURE , KNUST
7964219
In studio broadcasting space (radio station) design, my objective will be diffusing, insulating
and absorbing sounds from both indoor spaces and outdoor spaces around the proposed space
and the proposed space itself; to reduce reverberation time and prevent amplified echoes.
When the elements that defines the boundary of the space is treated or corrected acoustically,
then the space is ready to be used as a radio station. The elements that defines the space are the
walls, floor, ceiling , openings (doors and windows), and even furnishes should be treated
acoustically by checking ;

method of construction/ installation

absorption coefficient of the materials used

Texture and thickness of materials

arrangement of furnishes within the space

the reflectance of surfaces within the space and so on.
Walls
I will recommend a discontinous constructed wall or cavity walls .
To avoid large single leaf solid wall, a double leaf wall with an air gap in between
would be used. Because this gives an average insulation value which is greater than that
of the same weight built solid.
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
wall surface would be treated with panels/ cladding materials with higher absorption
coefficient . Example is a chip board made of pressed recycled cotton fibre called Echo
Eliminator with coefficient of 0.35- porous

The junction of the ceiling and the wall would sealed with cornice to stop air from
transmitting sound into the space

The junction of the wall and the floor would be sealed with skirting.
Floors
I will recommend a floating floor for the radio studio space.
Because the amount of impact sound energy getting into the floor may not be properly
insulated by resilient surfaces so it becomes necessary adopt a floating floor
construction which will reduce impact noise and also increase transmission loss for airborne sound.


Floor finishes will be porous and made of resilient materials such as woolen carpets.
Material for the floor – timber floor on purlins ( 0.15 as absorption coefficient).
Roof

Double structure roof to increase the sound insulation of aircraft noise especially in
Kumasi and Accra setting.
Ceiling



suspended ceiling
Material- Plaster board with holes (0.39 as absorption coefficient)
Convex shaped ceiling to disperse sound waves ( sound diffusion) to prevent cross
reflections.

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Ceiling will not be parallel to the floor so as to avoid unwanted flutter echoes
Doors

Heavy and airtight doors

Material- Timber

Providing seals around their entire perimeter
Sound locks
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
Lobby to reduce direct sound transmission when door is opened.

Staggered arranged doors.
Windows
5

Double glass plates with air cavity between them

Airtight seal around the entire perimeter.
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