auditoriums and their features

1. Practical-6
Auditorium
An auditorium is a room built to enable an audience to hear and watch
performances at venues such as theatres. Formovie theatres, the number of
auditoriums is expressed as the number of screens.
The seating areas caninclude some or all of the following:
 Stalls, orchestra or arena: the lower flat area, usually below or at the same
level as the stage.
 Balconies or galleries: one or more raised seating platforms towards the rear
of the auditorium. In larger theatres, multiple levels are stacked vertically
above or behind the stalls. The first level is usually called the dress circle or
grand circle. The highest platform, or upper circle is sometimes known as
the gods, especially in large opera houses, where the seats can be very high
and a long distance from the stage.
 Boxes: generally placed immediately to the front, side and above the level of
the stage. They are often separate rooms with an open viewing area which
generally seat only a handful of people. These seats are generally considered
the most prestigious of the house. A state boxor royal boxis sometimes
provided for dignitaries.
Types:
1) Opera houses
2) Amphitheater
3) Bandshell and bandstands
4) Jazz club
5) Live house
6) Public houses and nightclubs
7) Concert hall
8) Stadiums and arenas

2. From audio point of view:
1) There are three ways to improve workplace acoustics and solve workplace
sound problems – the ABCs.
 A = Absorb (via drapes, carpets, ceiling tiles, etc.)
 B = Block (via panels, walls, floors, ceilings and layout)
 C = Cover-up (via sound masking)
While all three of these are recommended to achieve optimal results, C = Cover-up
by increasing background sound produces the most dramatic improvement in
speechprivacy – with the least disruption and typically the lowest cost.
2) Building services noise control is the science of controlling noise produced by:
 ACMV (air conditioning and mechanical ventilation) systems in buildings,
termed HVAC in North America
 Elevators
 Electrical generators positioned within or attached to a building
 Any other building service infrastructure componentthat emits sound.
Inadequate controlmay lead to elevated sound levels within the spacewhich can
be annoying and reduce speechintelligibility. Typical improvements are vibration
isolation of mechanical equipment, and sound traps in ductwork. Sound masking
can also be created by adjusting HVAC noise to a predetermined level.
3)