Hearing Technologies...Are People Hearing What you are Saying?
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People who suffer from hearing loss require more than just increasing the volume of sound into their ears. The loss of hearing is generally associated with the brain’s neurological processing of information. For people with normal hearing, a signal to noise ratio of 6dB is required for a reasonable level of speech intelligibility. This represents quite a noisy background, and includes sounds such as reverberation, air conditioning, ventilation systems or background noise such as those associated with a crowd of people.
When a person loses about 80% of their hearing, they generally need a signal to noise ratio of 15 to 20dB for a reasonable level of speech intelligibility. This can be difficult to achieve unless the desired signal is taken straight from the basic source and transmitted directly through the loop system to avoid any reverberation or additional ambient noise. Delivering a pure, clean signal directly to the hearing aid maximizes the benefits of digital hearing aids and delivers the best possible sound possible to the hearing aid user.
Audio Frequency Induction Loops have the following advantages: