21

REVERBERATION AND TIME RESPONSE

 

CHAPTER OUTLINE

Reverberation

Time Response

Reverberance (EDT)

Clarity (C80)

Warmth (BR)

Listener Envelopment (LEV)

 

Reverberation

In 1898, Wallace Sabine, a physicist at Harvard University, developed a formula that defined the relationships between the volume of a room (10, the total surface area (S), the absorption coefficient of the materials in the room, (α), and the time it will take for a sound to decay to one millionth of its original intensity RT60. The formula image (use 0.049 as constant for feet) that he developed purely by observation is still used today. Over the years there have been developed a few ...

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