ENF1104 Problem Solving for Engineers – Acoustic Project Reverberation Time Broad definition: Time taken for sound level in a room to reduce by 60 dB
ENF1104 Problem Solving for Engineers – Acoustic Project Reverberation Time Procedure for measuring Generate suitable sound Initiate recording Interrupt sound generation Stop recording Display recorded data Compute sound magnitude vs time Compute slope of acoustic decay Calculate Reverberation Time
ENF1104 Problem Solving for Engineers – Acoustic Project Reverberation Time - Example Moving RMS [Pa] Recorded sound [Pa] Moving RMS [dB] Decay slope [dB/s]