It is the Persistence of Sound due to Repeated Reflection of Sound
Reflected Sound prolongs the original sound
Hence,Reflected sound becomes part of Original sound and we cannot distinguish between actual and original sound like in echo
Reverberation happens when time period between Original and Reflected Sound is less than 0.1 seconds
What is Difference Between Echo and Reverberation of Sound
| Echo of Sound |
Reverberation of Sound
|
| It is Repetition of Sound |
It is Persistence of Sound
|
| Original and Reflected Sound can be heard clearly |
Reflected Sound becomes part of Original Sound, it prolongs the original sound
|
| There should be atleast 0.1 second time difference for our human ear to hear 2 distinct voices OR ECHO |
There is usually a gap of lees than 0.1 seconds
|
How to Reduce Excessive Reverberation in halls and theaters?
This is done by sound absorbing materials
Example
Heavy curtains are used on walls
Carpets are put to absorb sound
Seats are made of sound absorbing material
Soundproofing panels are put on walls to absorb sound
Questions
NCERT Question 15 -
What is reverberation? How can it be reduced?
