Case Study
Einsatz von Hörhilfen zur Verbesserung der akustischen Wahrnehmung


The employer is a supermarket.

Disability and functional restriction of the employee:

The woman is hard of hearing and also has tinnitus (ear noises). She is deaf in the left ear and hard-of-hearing on the right, with the right ear being provided with a hearing aid to improve hearing. The verbal communication with her via the spoken language is therefore limited possible - especially in strong background noise and conversations from the left. The GdB (degree of disability) is 70.

Education and job:

The employee is an industrial clerk and works 20 hours a week as a cashier on a part-time basis with the employer.

Workplace and work duties:

The cash register area of ​​the supermarket consists of several scanner cash registers where the hard of hearing cashier and her colleagues work. Her tasks include essentially: - the collection of prices by pulling the goods through the scanner (the scanner scans the barcode of the goods to record the prices), - to receive the money for the goods, - the return of the currency and - the conversation with customers (questions, complaints, etc.). The activity is continuous and fast - for this to be possible, there must also be good communication with the customers.

Working environment:

With her hearing aid, the employee perceives noises due to movement of goods, shopping carts and customers as a particular obstacle to the workmanship. In the given noise situation, the necessary clarifying discussions with customers or colleagues are also very difficult. Tests and measurements have shown that a modern digital hearing aid with directional microphone, noise suppression, Bicrosversorgung and Tinnitusmaskierung can eliminate the workplace-related hearing problems with appropriate adaptation or programming by the hearing care professional. The modern hearing aid is based on the source of speech or the customer at the checkout and determines the respective noise situation. As a result, it amplifies the required frequencies, taking into account the required sound pressure level (volume) - while reducing the noise or noise. If the cashier is approached on the left side of her almost deaf page, the Bicrosversorgung makes it possible for her to hear the call acoustically. With the Bicrosversorgung a microphone is attached to the deaf ear and the acoustic signals are routed by radio to the receiver of the hearing aid on the right ear, so that the cashier can respond adequately even when addressing from the left and speech and sound useful spatially.

Assistive devices used:

In-ear hearing aids Behind-the-ear hearing aids

Keywords and Further Information

Funding and participation:

The hearing aid was paid with a fixed amount by the health insurance. The remainder or the additional requirements were taken on application by the pension insurance for participation in working life, since the legal requirements were met. The consultation, measurements and settings on the hearing aid were made by a hearing care professional.

ICF Items

Reference Number:


Last Update: 8 Jul 2019