Loudness models for rehabilitative audiology

This thesis is devoted towards the loudness perception of normal- and hearing-impaired listeners. It starts with a description of a field-test performed with a wearable DSP prototype hearing aid, which aims at restoring loudness perception in the individual hearing-impaired listener with different dynamic compression algorithms (chapter 2). In chapter 3 two methods (loudness matching and categorical loudness scaling) for assessing loudness perception are tested against each other. The reminder of the thesis is devoted towards modeling normal and impaired loudness perception for stationary sounds based on data derived from the method of loudness scaling. While chapter 4 gives a review of the literature on different versions of the loudness models based on the approach by Zwicker, a new loudness model (The 'Oldenburg Loudness Model') is introduced in chapter 5. This model has the advantage of better predicting the individual data of hearing-impaired listeners and taking into consideration the most recent data on equal-loudness level contours. Chapter 6 performs an evaluation of this model in comparison with two other models known from the literature.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Oldenburg

Year

2002

Author dc:creator

• Appell, Jens-Ekkehart

• [Keine Schlagwörter von Autor/in vergeben.]

Repository record source_url

http://oops.uni-oldenburg.de/261

OAI identifier oai:identifier

oai:oops.uni-oldenburg.de:261