What is Reverberation???
Reverberation is another name for what most people
know and understand as echo.
The following analogy explains what reverberation
is quite concisely without getting overly technical.
If you press the accelerator pedal of a car, the
car accelerates to a certain speed. If the road is smooth and level the speed
will remain constant. With a constant force on the accelerator, the engine
produces enough horse power to overcome frictional and aerodynamic losses and
maintain a steady and even speed, or steady state condition. If you take your
foot of the off the accelerator, the car will gradually slow, and come to a
stop.
Sound within a room acts similarly to this. When a
loudspeaker is turned, it emits noise into the room that quickly grows to a
certain level. This level is the steady state or equilibrium point at which the
sound energy radiated from the loudspeaker is enough to over come loses in the
air and at the room boundaries. A greater sound energy radiated from the
loudspeaker will result in a higher equilibrium level, whereas less energy to
the loudspeaker will result in a lower equilibrium level. If you push your foot
flat to the floor in the car the equilibrium or speed will be much faster, than
those Sunday drivers who only slightly depress the accelerator pedal.
When the loudspeaker is turned off, it takes a
finite length of time for the sound level in the room to decay to inaudibility.
This means there is an exact amount of time from when the loudspeaker is turned
off until the sound from the speaker cannot be heard.
For most environments such as conference rooms,
classrooms, sports halls, offices and the typical working environment or public
space, the longer the time between the noise source stopping and the noise
becoming inaudible, the worse the acoustic environment is perceived. This is
because a lot of words and noises overlap one an another.
You can say,
” What on earth is reverberation time?
How
do I treat it.?
” In a room with high absorption or with few reflections the sound
dies immediately or very quickly allowing Us to reply with the right answers.
Please Refer Part Two of this Resource, What is Reverberation?
For Any Clarifications call us at +919395333255 or Email us at apocalypse@mail.org
Visit us at www.apocalypseindia.com
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