Reverberation
Reverberation
Reverberation: The persistence of a sound in a big hail due to repeated reflections from the walls, ceiling and floor of the wall is known as reverberation. A short reverberation is desirable in a concert hall, where music is being played, as it boosts the sound level. But excessive reverberation is highly undesirable because sound becomes blurred, distorted and confusing due to overlapping of different sounds. To reduce reverberation, the roof and walls of the auditorium are generally covered with sound absorbent materials like compressed fibre board, rough plaster or draperies. The seat materials are also selected on the basis of their sound absorbing properties.
Application of reverbartion:
The phenomenoen of reverbration is utilized by the producers of living or recorded music in order to enhance sound quality.Several systems have been developed to produce and simulate reverbartion. A similar device is aplate reverberator, where a metal plate is used to produce vibartions instead of a loudspeaker.
Advantages of reverberation :
Reverberation do wonders when it comes to musical symphonies and orchestral halls, when the right amount of reverbartion is present, the sound quality gets enhanced drastically.
Disadvantages of reverberation :
Multiple reflection of sound sometimes results in inability of the listener to listen clearly .This is because he tends to hear both the direct sound and the repeated reflected sound waves.
How to reduce reverberation ?
1 Acoustic foam :Acoustic foam explicitly built to reduce the echoes and reverberations in music production studios and vocal recording booths.
2. By adding furniture to the room : Large soft items can absorb and nullify the energy that's propelling a sound wave. One easy and effective way of adding lots of large and soft items to your room is by adding large furniture.
3. By covering windows with curtains :By covering upthe windows with sound absorbing curtains, we can easily and asthetically reduce the amount of echo any room is experiencing .
4. Art and tapestries: The effect of echo can be reduced by using art and paintings on the wall .These a pintings helps in absorption of sound and reduces the echo.
5. Use of fabric blinds: These can be used to reduce the echo as well. They are usually made up of metal and wood ..
Which of the following are correct : (a) The persistence of a sound in a big hail due to repeated reflections from the walls, ceiling and floor of the wall is known as reverberation. (b) The persistence of a sound in a big hail due to repeated reflections from the walls, ceiling and floor of the wall is known as echo. (c) To reduce reverberation, the roof and walls of the auditorium are generally covered with sound absorbent materials like compressed fibre board, rough plaster or draperies. | |||
| Right Option : C | |||
| View Explanation | |||
The disadvantages of reverberation are ______________ . | |||
| Right Option : C | |||
| View Explanation | |||
We can reduce reverberation by _________________ | |||
| Right Option : D | |||
| View Explanation | |||
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