BUILDING A SOUND EDUCATION

Understanding mining noise learning resources.

Evan Redman 15/5/23 Evan Redman 15/5/23

Does the weather and time of day affect noise?

Limited and more thoughtful development.

Evan Redman 23/7/19 Evan Redman 23/7/19

A low frequency sound wave of 20 hertz (20 cycles per second) has a wavelength of 17 metres.

A high frequency sound wave of 100 Hertz has a wavelength of just 3.4 metres.

Higher frequencies require more energy and therefore “run out of breath” sooner than low frequencies.