Our patients often ask us why they seem to have significantly greater difficulty hearing in busy rooms than in other conditions. When they are talking to people one-on-one, or in small groups of people there is no problem, and they seem to hear just fine. Not so in crowded situations. Whether in large public space outdoors such as a football game or indoors at a party, they report being unable to distinguish the speakers’ voice over the background noise. This is true even when the speaker is close by and addressing them directly. People who complain of this also often mention having trouble hearing the consonants “H,” “F,” and “S,” no longer being able to distinguish one from the other.
If this situation sounds familiar to you, it may be an indication that you have suffered some degree of high-frequency hearing loss. Human speech, especially the consonants “S,” “H,” and “F,” fall into the range of sounds between 3000 and 8000 Hertz, which scientists define as “high-frequency.” In crowds, there is a mix of frequencies, ranging from the low frequencies of background music or people walking or dancing to the higher frequencies of human speech. Individuals with high-frequency hearing loss will report that the low-frequency sounds are much louder to them. To them it is as if the ‘background noise’ has been amplified relative to the human speech they are trying to focus on.
At least 18 percent of the population suffers from some form of high-frequency hearing loss. One of the possible causes for this condition is aging, but high-frequency hearing loss has in recent years been increasing in teenagers and younger adults as well, possibly as a result of being exposed to overly loud music, and suffering noise-induced hearing loss. High-frequency hearing loss can also be the result of diabetes, a side affect of certain prescription drugs or genetic factors.
The important thing to remember is that if you have suffered some degree of high-frequency hearing loss, it can be effectively treated. We can prescribe hearing aids that have been adjusted to reduce the volume of low-frequency sounds and boost the volume of the higher frequencies, so that you can hear better in crowds.
The first step is to visit one of our specialists, and make sure that the problem is caused by a loss of hearing. Our audiologist can perform a variety of tests to identify the underlying cause of the problem and recommend the best treatment options for your specific situation.