Below is a range of links you can use as a starting point for your research in to Acoustics Task 3
How the ear works
A more detailed look at how the ear works
Fletcher Munson Equal Loudness Curve Explained
And again......
The limits of human hearing
Limits of hearing in more detail
And again....
Noise exposure and hearing damage
Hearing Loss
And again......
And again...........
Psychoacoustics
Health & Safety Noise Regulations
Health & Safety Employer Responsibilities
Health & Safety Events Regulations
Auditory Illusions
Auditory Illusions
Auditory Illusions
Auditory Illusions
Auditory Illusions