IIUM Press, International Islamic University Malaysia
Abstract
This book is written with the main purpose to distribute the knowledge ofone of the
many studies made about enhancing speech enhancement in communication among those
workers who wear hearing protection devices (HPD) as part of the Hearing Conservation
Programme (HCP). A HCP may be as important as if no other engineering approach or
from the management side is impractical, therefore the HPD must be worn whenever and
wherever required. Nowadays, there are so many HPD like the earmuff that provide the
user to protect their hearing if said properly worn. Some of the HPDs have the feature that
allowing the speech of a worker to be understood by the other whom wear HPD that block
out unnecessary noise. In the engineering approach, many researchers have study about
many methods to achieve the communication while HPD worn. In addition, the importance
of the communication at noisy workplace is that it may give warning indicator and clear
instruction. In the public health perspective, wearing a HPD is a method to reduce the
occurrence of occupational Noise Induced Hearing Loss (NIHL). However, HPD usage
is not liked at all time or for all workers, thus they tend to not use the device accordingly.
One of the reason is the user cannot make good communication while wearing HPD. It is
hopefully, through the written content of this book, people would have a better option of
HPD with appropriate communication feature by continuing previous researches made
