Putrajaya International Convention Centre (PICC) Auditorium : A Case Study on Acoustic Design Building Science II Leong Darren Low Wing Chun Joey Lau Xin Jun Cryslyn Tan Zhia Lyn Tung Siew Hui Tan Ke Weh Ong Jie En Vun Tze Lin Shreya Maria Wilson
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Plenary Hall Architect: Hijjas Kasturi Associates Client: Jabatan Perdana Menteri The plenary hall is PICC’s largest single venue, imposing gallery-like auditorium ideal for major corporate functions, governmental or NGO-level exchanges, trade or educational symposia - event requiring the highest level of functionality and participation, It has a total volume of 52173 cubic meters and seats 3000 people.
Inspired by Malaysian traditional mengkuang basket weave motif, which also enhances illumination from natural daylight. The chamber also boasts excellent acoustics for natural speech intelligibility and for sound amplification, includes two royal boxes, two public viewing galleries, eight interpreter rooms operating 32 channels, and two large A/V screens.
Auditorium Design Analysis
Seats Arrangements
Sound waves reaching the ears of the occupants uninterrupted
Fan shaped configuration
Acoustic Treatments
Wall Panels The walls of the plenary hall are mostly covered with acoustical fabric installed with timber perforated acoustic panels and as well as timber framing. The back of the stage is covered with timber perforated acoustic walls.
Timber perforated panel Air cavity Acoustic fabric Acoustic plasterboard Mineral wood insulation Barricade noise barrier Gypsum board
Acoustic Wall Panels Used to treat sound aberrations, such as echoes and reflections, and to improve sound clarity. The panels are arranged in a stepping configuration where it’s intention is to disperse sound waves in various direction. Redundant based on the size of it againsts the scale of the hall. And is most likely used for aesthetic purposes to conceal the loudspeaker situated behind it.
Seatings There’s 3000 seats in this auditorium, each composed of a compact block of open-cell polyurethane foam that is attached to a 130mm thick beech plywood board. The table is 54cm wide and 46cm deep, covered in leather. The seating rows can be converted into large desk when a large working space is required. It also comes with automatic folding anti-panic lectern.
Ceiling The ceiling is installed with voids on the sides to allow the penetration of natural light into the auditorium. Concave ceiling is used in the auditorium to reflect the sound onto certain areas of the hall.
Floorings Majority of the floor in the auditorium is covered with carpet as it reduces sound impacts. The rubber layer underlay also helps in strengthening the sound absorption.
Sound Lock The sound lock area contains carpeted floors & fiberglass panel absorbers The distance from the waiting area to the hall is roughly 8 meters long.
Noise Sources
Exterior
Interior
Sound Propagations & Related Phenomena
Sound Concentration Sound is more concentrated on the front row (Row A) due to the large volume of space and excessive use of absorbent materials.
Sound Reflection A
B
C
D
Sound Shadow
Sound Echo & Delay
A. B. C. D. E.
(17m+16.7m-8.7m) /0.34 (20.3m+16.3m-16.6m) /0.34 (23.8m+15.2m-23.1m) /0.34 (27.6m+15.1m-31.7m) /0.34 (31.3m+13.8m-38.3m) /0.34
= 73.8ms = 58.82ms = 46.76ms = 32.35ms = 20ms
Sound Defects & Issues
Sound Reverberation
RT = 1.08s Suitable for speech rather than muscial.
Conclusion “surface”
Thank you