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


Reverberation of Sound image.jpg

reverberation of sound gif






How to Reduce Excessive Reverberation in halls and theaters?

This is done by sound absorbing materials


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



NCERT Question 15 - What is reverberation? How can it be reduced?

View Answer


Go Ad-free
Maninder Singh's photo - Co-founder, Teachoo

Made by

Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo