The ____________ is defined as the number of pressure variation which a sounding body makes in each unit of time.

The ________ of suitable type may be used to distribute air inside the room.

In the acoustical design of a hall or an auditorium, the angle between the side walls and the curtain line should not be…

In the acoustical design of a studio, the ratio of height, breadth and length of the studio should be _____

For working a temperature of 21 degree Celsius, range of 30% to 70% of ________ is desirable.

Rotatable cylinders are provided in the ceiling of a studio in order to obtain variable ______

The range of audible sound too painful noise varies from ____ decibel.

_______________ defect is due to the lack of reflecting surfaces near the source of sound and excessive absorption of so…