# Shared Flashcard Set

## Details

AUDIO MEASUREMENT SYSTEMS
Acoustic Studies 3 Study Guide
9
Engineering
07/24/2013

## Additional Engineering Flashcards

Term
 WHAT IS REVERBERATION?
Definition
 It is the sound that lingers in a room after the signal is turned off
Term
 WHAT IS THE ITG?
Definition
 Initial Time Gap
Term
 WHO WAS WALLACE C. SABINE?
Definition
 Founder of the Science of Architectural acoustics and developed the RT60 formula.
Term
 WHAT IS RT60?
Definition
 The amount of time it takes for sound to decay 60dB
Term
 WHAT IS SABINE’S CLASSIC EQUATION FOR RT60?
Definition
 Rt60 = 0.049v            Sā
Term
 WHAT IS THE FORMULA TO CALCULATE THE VOLUME OF A ROOM?
Definition
 Volume = length x width x height
Term
 HOW DO YOU CALCULATE FOR S (TOTAL SURFACE AREA)?
Definition
 Multiply each surface by its 2 dimensions then sum them all together.
Term
 WHAT IS THE FORMULA TO CALCULATE THE AVERAGE ABSORPTION COEFFICIENT OF A ROOM?
Definition
 ā  = s1a1 + s2a2 + ….. + snanS
Term
 WHAT CHANGES ARE MADE TO THE CLASSIC SABINE EQUATION, WHEN CALCULATING FOR THE ABSORPTION OF AIR?
Definition
 Add +4mV to the denominator of the sabine equation.
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