Acoustic Consultants: Kathryn Cheng and Forrester Jr

Interior Designers: D’Perception Pte Ltd

Acoustical Contract: Aural-Aid Pte Ltd

Our Acoustic Consultants help bring Stress Free Office Environments to the City

Creating a stress free space in today’s world can be hard to find these days. The Urban Redevelopment Authority (URA), Singapore is one of the spaces that takes pride to uphold what is promises. Our acoustic consultants were contracted by the URA to perform acoustic consulting and verification for their new recreational hub. There were 10 different types of rooms, which posed a unique challenge as each of the rooms came with its own acoustic requirements.

The Lounge

Stress Free Space - Main Lobby of URA Offices acoustically designed by our acoustic consultants

Stress Free Space – Main Lobby of URA Offices acoustically designed by our acoustic consultants

In creating an enjoyable environment that delivers an opportunity for an employee to thrive.  The lounge serves as a communal area for URA employees, with a mixture of recreational and work-related facilities. This includes the kitchen/pantry which sits at one corner, with space specifically designated to accommodate a gaming facility.

Some elements in the gaming facility feature a dartboard and a pool table while the other corner boasts a projector screen.

In order to accompany with several collaboration booths, modular units allow the employees adequate privacy.

The visual design for the lounge creates a tranquil and peaceful atmosphere for the employees to experience images of a lily pond. We suspended ceiling baffles which shape like water lilies, lilypad-shaped rugs on the floor. The sofas echo the earthy colour of pebbles submerged at the bottom of a stream.

The main centrepiece of the room features a green wall where a wide band of the front wall was studded with green acoustic foam and dramatically backlit with LED lighting.

Acoustically, the lounge did not have to conform to a short Reverberation Time (RT) time since it was a shared space. The RT could be higher than the Training Rooms as this would make conversations indistinct.

Acoustic Consultant Recommendation

Our recommendations were to modify the design of the feature wall slightly. Since each piece of foam mounts on top of a plywood box, we requested perforations be drilled into the box. This essentially turned the entire wall into a trap for low to mid frequencies.


Our RT test would give us a measurement around 0.9 seconds at 1kHz.

Training Rooms 1-3

These rooms were designed as classrooms for training purposes and as a result to achieve a high level of speech clarity. Since the rooms were all rectangular, we recommended cladding the rear and side walls with an acoustic polyester material.

We deliberately left the front wall (behind the speaker) untreated, as this makes it more reflective than the other 3 walls. This aids the speaker in voice projection as the sound reflections would bounce off the reflective front wall and be clearly projected throughout the classroom. The sound reflections would then be absorbed by the cladding on the rear wall, thereby eliminating any flutter echoes.

The sound reflections would then absorbed by the cladding on the rear wall, thereby eliminating any flutter echoes.


When we conducted a reverberation test, the measure read an RT of 0.7 seconds at 1kHz

Karaoke Rooms 1&2

Our task here was to ensure both rooms had sufficient noise insulation. We checked for gaps in the AC ducting, ensure electrical outlets were staggered, and to check the sealing mechanism of the doors.



Our acoustic consultants recommended treating the room interior with fabric panels to achieve a low RT. This room was on the dead side, with the RT measurement gave us a clear reading of 0.3 seconds at 1kHz. Specifically for this Karaoke TV (KTV), a low RT was ideal. In this case, this allowed music emanating from the speakers. This was not coloured by room acoustics.

Additionally, singers can have the freedom to add electronic reverb to enhance their performance.

URA KTV Room overlooking the city

URA KTV Room overlooking the city

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