FOUR ACOUSTIC CONSIDERATIONS WHEN DESIGNING A LECTURE HALL

FOUR ACOUSTIC CONSIDERATIONS WHEN DESIGNING A LECTURE HALL

FOUR ACOUSTIC CONSIDERATIONS WHEN DESIGNING A LECTURE HALL

November 12 2014

When designing a large lecturer hall/Auditorium you key goal is to allow audience members to easily hear and understand the presenter.

Here are four tips to consider:

o Recommended reverberation time is 1 second.

MBA C113 42

o Beware of potential noise impact to your space from exterior sources and/or excessive HVAC noise which can greatly degrade speech intelligibility. To help protect your design, the NC level should not exceed 25 to 30. When specifying NC, specify an actual rating, such as NC 30, rather than a range, such as NC 25-30. Although specifying a lower number will ensure minimal background noise, it might be cost prohibitive to achieve. Be realistic about the amount of acceptable noise and the project’s budget when specifying an NC level. NC is not a consideration for an outdoor space.

o The front wall and ceilings can be reflective, enabling sound to reach everyone.

o Absorptive material on the back and side walls will help reduce the reverberation time and unwanted reflections.

For more information, or specific technical advice email us via: letstalk@decorsystems.com.au DecorArti - Bertoldi Architects - Greek Letters - Acoustic Panels - 002

Cover Image – UQ Connell Project – Architect: ArkLab –

‘A dynamic, sculptural, yet functional result was our objective. We achieved this by specifying Décor ply acoustic panels for the acoustic wall/ceiling wrap for the UQ Connell lecture theatre fitout.’

Middle Image: Freeman Catholic College – Architect: SARM Architects – http://www.sarm.com.au/project/freeman-catholic-college-

Bottom Image: Mount Saint Michaels – Architect: Bertoldi Architects

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