MySecondEar BiCros customer with big ears

Maximum high-performance computers for your ears with the CROS and BiCROS technology

If you are completely deaf, you cannot use a normal hearing aid. Such a hearing aid only amplifies the sound and thereby stimulates your inner ear. But that is no longer enough. If, on the other hand, you can only hear from one side, you can no longer assign sounds and you do not know which direction they are coming from. This makes it difficult for you to distinguish background noise. But there are also special solutions for these cases that make hearing easier for you. These solutions are individually tailored to your needs.

CROS and BiCROS supply

This guide deals with the so-called CROS and BiCROS supply technology for your ears. This technique is used when you are unilaterally deaf. It enables you to continue to listen to the direction. Your quality of life will improve effectively as a result.

Do you have any further questions? You are welcome to contact us for more information. Our hearing care professionals will be happy to advise you free of charge and without obligation on all current hearing aids and help you to find your hearing aid that is individually tailored to you.

Directional hearing despite one-sided deafness

CROS and BiCROS hearing aids enable you to hear three-dimensionally or directionally despite one-sided deafness. If you hear binaurally with two healthy ears, then the sound waves reach your hearing to different degrees. The sound waves simply take longer to reach the distant ear and arrive there quieter. The brain uses this information to determine the origin of the sound. This allows your brain to pinpoint exactly which direction the sounds are coming from. So you can orient yourself well in the room. People who can hear normally know exactly where the bird is sitting whose chirping they are currently hearing. A location is then no problem, because the exact position is easily heard. So you can basically see with your ears.

If you are deaf on one side, then you can only hear noises, sounds and voices with your sound ear. In this way, the direction of the noise or the location of the noise source is simulated for the brain, so to speak. There is no point in turning your head or changing your position. With one-sided deafness, the ears and brain are unable to recognize the direction from which the sound sources are coming.

It is very difficult for you as a person affected to recognize a certain noise among many diffuse and loud background noises and to concentrate on it. Conversations will also become a problem for you.

Hearing loss can have different causes:

  • tumor
  • traumatic brain injury
  • Congenital impairment

If you are deaf on one side, a CROS or BiCROS fitting can enable you to hear directionally again. Then you will recognize if you are being addressed on the damaged side, for example. The CROS / BiCROS technology is highly developed. They redirect the sounds that you cannot actually hear to the hearing ear. This allows precise processing in your brain. Your life will be made much easier with CROS and BiCROS hearing aids.

Redirection of the sound with CROS

In a classic hearing aid, the receiver and microphone are close together. This amplifies the signal at the corresponding ear. In the case of one-sided deafness, this technique does not lead to success. That is why the scientists developed a completely different concept. With the so-called CROS supply, the receiver and microphone are attached independently of one another at different locations.

On the deaf ear, a microphone picks up the sound and automatically forwards it to the healthy ear. Here is the listener. The normal hearing of your healthy ear is not affected by this technique, but the brain can assign from which direction the sound waves come.

Only a few years ago, the necessary technology had to be hidden in a frame of glasses. The microphone was attached to the spectacle bracket and the cable for the transmission of the sound was incorporated into the frame.

In the meantime, the process has become very modern and the hardware very unobtrusive. The transmission takes place without cables by radio signal. The sound is transmitted quickly and precisely and arrives in the working ear by means of an otoplasty. Otoplasties are hearing pieces that are individually adapted. To do this, you first have our hearing care professional take an imprint of your ear. This then serves as the basis for the production of your otoplasty, which sits perfectly in your ear canal after adjustment.

The technical equipment of the CROS hearing aids may vary from manufacturer to manufacturer. Here, too, there are both back-to-the-ear and in-ear hearing aids, which are connected to the otoplasty.

All these devices are particularly small and hardly stand out. Therefore, you enjoy an above-average wearing comfort and your hearing is enormously improved.

If your second ear isn't working properly

Maybe your two ears don't work properly, but even in this case you can look forward to a modern solution. Incoming signals are picked up by a microphone on your ear with the poorer hearing and sent to the other side without cables. Even if your better ear has hearing loss, hearing works well with this technique. The signals are received on the side with the better ear from another microphone. Both signals are then amplified to ensure the best possible hearing.

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