Introduction
The document introduces ERKI, an advanced option for the clinical audiometer AT1000, designed to enhance directional hearing diagnostics. It is particularly beneficial for children's audiometry, offering a virtual tour through its features.

Specifications and Features
ERKI is compatible with the AT1000-PED audiometer and includes features such as an integrated tympanometer, up to 9 loudspeakers, adjustable tables, a wide selection of speech tests, remote control, and various visual reinforcement tools. The system supports up to 32 virtual sound sources and 5 audiometry loudspeakers.

Technical Innovations
The system is designed for intuitive operation, high precision recording, easy calibration, and fast testing. It is computer-controlled, allowing for automated tests independent of the examiner. Results are displayed numerically for electronic analysis.

Directional Hearing and Benefits
ERKI enhances the precision of directional hearing diagnostics, crucial for binaural hearing processes. It allows for a resolution of 5° compared to the traditional 30° or 45°, improving the fitting of cochlear implants (CIs) and hearing aids (HAs). This leads to faster, more accurate fittings, enhancing patient comfort and quality of life.

Applications
ERKI is beneficial for diagnosing Auditory Processing Disorder, selecting hearing aids or CIs, comparative fitting, bilateral and binaural fitting of CI processors, and post-rehabilitation support. It provides a holistic examination experience, improving the patient's quality of life.

Operational Details
The system includes a modified children's table with 5 loudspeakers arranged around the patient. The stimulus is presented randomly between -90° to +90° in 5° steps, with the child using a control dial to indicate perceived direction.

Conclusion
ERKI represents a significant advancement in audiometry, offering precise, automated, and user-friendly diagnostics for directional hearing, ultimately improving patient outcomes and quality of life.