Answers to Readers' Questions on Sound and Acoustics in Buildings. Also refer to physics, sound, concert hall, auditorium, factory, apartment, echo, reverberation, quality, suppression, noise, acoustical tiles, Ron Kurtus, School for Champions. Copyright © Restrictions
Answers to Readers' Questions on Sound and Acoustics in Buildings
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Why are the acoustics in Bada Imambada so good?
Question
February 16, 2009
You have provided with a good material on acoustic buildings, but my question is concerned with a historical building.
In Bada Imambada (that's a historical monument in Lucknow, UP, India), if we light a match-stick at one corner of hall (170 feet), the sound is heard at the other end. Why?? and How??
In the same building, when in Bhul-Bhulaiya, one can hear if someone speaks into the wall by giving his ears at the wall. Please explain?
Nishat - India
17283
Answer
Bada Imambada is famous for its good acoustics, as well as the large, unsupported ceiling. Since the walls are very thick and the air is very still in the building, sound is not absorbed by the walls or distorted by the air. Also, outside noise is not heard in the building, and thus quiet sounds are more readily heard.
It is said that a person can hear his echo bouncing back and forth seven times in Bada Imambada. A problem in buildings with poor acoustics is that there are numerous echoes and reverberations that distort the sound and change it to noise.
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Answers to Readers' Questions on Sound and Acoustics in Buildings