From AUDiTEC

This recording attempts to demonstrate what a hearing loss might sound like to the hearing impaired. It is in two sections: Section one demonstrates a flat loss similar to a conductive loss. Starting at normal level, it periodically attenuates in 10 dB steps to -40 dB. Section two simulates high frequency losses. This section employs two talkers, a male and a female and they talk in quiet and in a background of noise. There are four parts to section two: 1. No loss. 2. – 4. Sharp low pass filters at 2000 Hz, 1000 Hz and 500 Hz. Each is in quiet and in noise. Brief introductions precede each section and representative audiograms accompany each recording.