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Welcome…

“Sound… It’s All Around Us” How to Design for Optimal Workplace Acoustic Comfort

Quiz 1 of 5 What is the difference between sound and noise?

Quiz 1 of 5 “ Noise is unwanted sound , judged to be unpleasant, loud or disruptive to hearing”

What is Sound & Why Does it Matter? Sound affects us in 4 ways… Physiologically Cognitively Psychologically Behaviorally

What is Sound & Why Does it Matter?

What is Sound & Why Does it Matter?

Sound… But what is acoustic design? Sound is measurable Sound is manageable

How We Measure Sound: Reverberation Time “RT (Reverberation Time) is the time for the sound to die away to a level of 60 decibels below its original level.”

How We Measure Sound: RT Norms

How We Measure Sound: Sound Absorption Classifications

How We Measure Sound: Materials

How We Measure Sound: Decibels “ A dB (Decibel) is the unit used to measure the intensity of sound.”

How We Measure Sound 20 dB – Whispered conversation 45 dB – Occupied office 50 dB – Occupied classroom 65 dB – Gymnasium/restaurant 70 dB – Factory/railway carriage 90 dB – Traffic/machinery 110dB – Rock concert 120 dB – Plane at take-off 140 dB -Gunshot

How We Measure Sound 55dB is NOT 10% more than 50dB!

Design for Optimum Acoustics Cellular Office

Design for Optimum Acoustics Multi-user Room (Co-working)

Design for Optimum Acoustics Open Plan Space

Design for Optimum Acoustics Booth / Pod

Design Principle 1 Find the source of the noise…

Design Principle 1 …and build walls

Design Principle 2 Acoustic Design Guidelines

Design Principle 2 Before After

Design Principle 2 Wall Panels

Design Principle 2 Rafts Baffles

Average RT before treatment: 1.08secs Average RT after treatment: 0.58secs Amount of ‘Class A’ sound absorber required: 11sq/m

Design Principle 3

Design Principle 3

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