05 - FLOOR RAKE & CEILING REFLECTORS

Reverberation Time

is the time it

takes for reflected sound to die down

by 60dB from the instant that the

sound signal ceases.

seconds

RT is measured in

Raked seating

refers to seating which is positioned

on an upwards slope away from the stage, in order to

give those in the audience at the back a better view

than if the seats were all on the same level.

FLAT FLOOR

In a small lecture room, it may be

possible to use a flat floor with or

without a raised platform, provided

clear sight lines are available to each

person in the audience.

SLOPED FLOOR - UNIFORM SLOPE

This slope is determined based on

the fact that the sight line from the

last row should clear over the head

of the person seated immediately in

the front – the last but one row.

SLOPED FLOOR W/ VARYING SLOPE

Increasing the slope on the seats

further from stage is required

especially on theatrical acts or

operas where the audience must be

able to see the whole body of the

performers on stage.