Being hearing impaired can be a real challenge in the workplace. The biggest problem is that few understand the problem, and usually the person with the hearing impairment is hesitative to admit the fact.When in one on one situation things may be just fine, especially there is little background noise. In a crowd situation the hearing impaired person may hear, but not understand, 50% or more of what is said. It can be very frustrating in meetings etc.Sound is made up of Frequency and Volume me.