As there are usually large windows.
I dont know what halls you are talking about but the factors that you list all have one thing in common and that would be sound reduction.
how many types of fabrics are used for curtains? how many types of fabrics are used for curtains?
Bed Bath and Beyond, Sears, Kmart, and Walmart all carry curtains. They each have a large selection that will include room darkening curtains. If you have trouble finding a style Amazon will have a large selection as well.
Meat Curtains
Clearance curtains have the same use as normal curtains, which is to cover windows. The main difference is that clearance curtains are sold at clearance sales.
Echoes are undesirable in large halls because they can distort or overlap with the original sound, making it difficult for listeners to understand speech or music clearly. This can also create a distracting and unpleasant listening experience. To minimize echoes in large halls, acoustic treatments such as sound-absorbing materials or diffusers are often used to absorb or scatter sound waves and reduce reverberation time.
Its used for the curtains.
Curtains are used to cover windows,decorations,and for table cloth
Yes they did. sometimes curtains were used instead of doors for rooms
The value of curtains is determined by the quality and material used to make them. You can find curtains for as low as $19. 99 and as high as $1,000 for curtains made with expensive material.
There are many shops that offer blinds and curtains for large sized windows. The best online options are as followed: JohnLewis, Argos, Curtainwonderland and Sears.
The curtains provide attractive sound deadening so that it doesn't echo in the theater. Some theaters just use other sound absorbing methods but the curtains are something of a hold-over from the older theaters where plays and concerts were performed in the past and have a nice appearance.