Case Study
Arbeits­platz­gestaltung für eine Lehrerin


The employer is a school or a state government.

Disability and functional limitation of the employee:

The woman is hard of hearing and only very limited acoustic information, such. B. speech and signals to perceive. A verbal communication with her is only partially possible - especially when several people talk or noise is present. Due to disability, therefore, audible information must be amplified by aids and noise should be filtered so that they can be perceived by the woman acoustically.

Training and job:

The woman is a teacher and teaches at a school.

Workplace and work duties:

On the basis of sound and voice audiometric measurements and the advice of a technical adviser of the integration office and a hearing care professional, the teacher decided on behind-the-ear hearing aids, in combination with an FM system. The hearing aids have switchable hearing program curves and directional microphones with zoom function. The zoom function makes it especially possible to improve hearing when talking to several people. Directional microphones significantly improve directional hearing. In order to achieve normal speech perception, the sound pressure level (volume) must be increased using the hearing aids and the noise filtered. To further enhance speech perception in the classroom, the hearing aids were supplemented by an FM transmission system, often referred to as a microport system. The FM system is a radio system that transmits the language from the source (the students) directly into the teacher's hearing aids. To achieve this, there are several microphones with transmitters distributed on the student desks. The spoken word is transmitted by the respective transmitter on the microphone to the receiver inserted on the hearing aid via an audio shoe or adapter and from there directly into the teacher's hearing aids. Noise is thus not transmitted and the teacher can move freely in the room with a constant good acoustic perception. Together with the students, the teacher tested her new hearing aids in conjunction with the FM system. Everyone was immediately convinced of the improved understanding. Even students in the back rows were as clear as if they were sitting right in front of their teacher. Even with spontaneous utterances and interjections, the teacher can recognize on the basis of pitch and accent which pupil or pupil is currently speaking.

Assistive devices used:

behind-the-ear hearing aids radio frequency transmission systems

Keywords and Further Information

Funding and participation:

The hearing aids have been approved by the State Aid for officials with a "fixed amount" and the FM transmission system with the appropriate accessories for the hearing aids (audio shoe, radio receivers and microphones) has been promoted by the Integration / Inclusion Office. The advice was provided by the engineering specialist service of the Integration Office - the so-called Technical Advisory Service - and by a hearing care professional, who was responsible for advice and sales as well as the settings of the aids.

ICF Items

Reference Number:


Last Update: 2 Nov 2020