"If a tree falls in a forest and no one is around to hear it, does it make a sound?"
If you have ever fought over the volume on the television with a loved one, you have realised ideal noise levels differ from person to person. Noise is otherwise known as ‘unwanted’ sound and is expressed in decibels (dB). Its widely agreed sound over 60 dB is the level which can disturb everyday activities such as watching TV and general concentration. There is no doubt different people have different tolerance thresholds of sound. This could be due to hearing capabilities o