Two are better than one

Several scientific studies have proven the only effective option to speech in noisy conditions, properly understood, the use of two identical working ears.

The following graphic table shows undeniably that the results of speech in both ears much better than with only one ear, and especially in noisy environments.

 

Description lines in figure:

The red curve shows an ideal audience that gives 100% intelligibility in all listening conditions.

The green curve (normal hearing) shows the percentage of intelligibility that normal hearing in different circumstances. We find that, even with normal hearing, speech intelligibility decreases in noisy conditions.

The blue curve (a hearing) shows the percentage of intelligibility that reached by only one hearing-impaired. As soon as noise is very poor intelligibility.
The orange curve (two-part set) shows the percentage of intelligibility that reached by the hearing wearing a binaural fitting. In a noisy environment, the intelligibility much better than with just one device.

Localize sounds with both ears

How do we know, without looking, that a car comes from the left?

The left ear receives the sound slightly faster and a little louder than the right. Faster and more reliable than modern computer brains calculate this difference, and thus determine the direction of the sound. Binaural hearing is therefore an important safety factor.

 

Understanding speech in noisy environments:

In a quiet environment you can use an ear sufficiently understood. But life takes place largely outside the living room. Problems occur especially if a lot of mean people - for example, roommates, friends, acquaintances or colleagues - in a noisy environment by talking. In such situations you have two similar and equal working ears needed.

Why? If the brains of both ears receive sound signals, your hearing is capable of amazing things: they suppress the background noise and filtering the speech from the hubbub.

 

Rust Rust

We hear only one side, then get the brains gradually lose some of their ability to sound information from the bad ear use.

This phenomenon, also called auditory deprivation, occurs mainly when a hearing impaired ear correction mate long time no answer or if wait too long to wear hearing aids or PCAs.