L01 Absorbancy Coefficientcy Rating

Test as many different surfaces as possible

Test for reflection e.g. echo

Describe the enviroment during recording

Note how many people are present

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Estimate the size of the room in feet

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Numbers refer to percentage of sound absorbed

0 - Very reflective 1- Very absorbant

Wall in D5 - 0.00 - Not a good recording enviroment

Huge corridor - Roughly 40 foot wide 15 foot tall

Table in D5 - 0.10 - Not a good recording enviroment

Small classroom - roughly 15 foot

Sponge material notice board - 0.70 - A fairly good recording enviroment

Wooden door in Main Henley Block - 0.10 - Not a good recording enviroment

Sponge chair in a empty classroom - 0.50 - An average recording enviroment but not  good enough for proffesional standard work.

Surface areas in a classroom

Surface area of all four of the walls - 240 Square foot

Brick wall with paint over

10.2 @ 1KHZ

8.5 * 24 = 204 * 0.05 = 10.2

Surface area of the floor

100.8 @ 1KHZ

Glass wall

7.14 @ 1KHZ

8.5 * 28 = 238 * 0.03 = 7.14

Ceiling

135 @1KHZ