"The Acoustics of Reverberation: Causes & Treatments" is a presentation given by Ventac staff at Saint-Gobain's 'Get Practical' CPD event in October, 2017.

2. What we’ll cover:
• What is reverberation?
• Why does reverberation matter?
• How do we treat reverberation?
• Special considerations

3. What is reverberation?
• Maths developed by Wallace Sabine in the late 19th early
20th century
• Time taken for a sound to drop by 60dB in a space
• Measurement of how much ‘echo’ is in a room
• Can be stated as a single figure but is frequency dependant

6. Why does
reverberation matter?
• Depends on the intended use of the space
• Speech intelligibility
• Meeting rooms/class room 0.5s to 1s.
• Concert halls for classical music 2.5s-3s.

7. Reverb Room Example

8. How do we treat
reverberation?
• Always the most affective and cost
efficient to install during the initial
build
• We add absorption – not just
foam!
• Absorption Coefficient
• 40% rule

12. Special
Considerations
• Fire ratings
• Durability
• Listed Buildings

13. For access to this presentation, go to:
www.slideshare.net
and search
“The Acoustics of Reverberation: Causes &
Treatments”

14. Thank you for listening!
Any questions?