Which of the following is not an acoustical defect?

Colouring of sound quality is caused due to _____

The amount of sound transmitted outside a room depends on the surface while the amount of sound reflected or absorbed de…

In Summer, the outside air is hot and hence the process of air conditioning involves filtering, dehumidification and ___…

The _____ are the substances which allow moisture to stay on their surfaces.

The rate of amount of water vapour present to the amount it would have contained, had it been saturated, is known as the…

In Winter, the outside air is cool and hence, the process of air conditioning involves filtering, preheating and _______…

Which of the following relations between loudness and intensity is correct?