| Paper: | AE-L1.3 | ||
| Session: | Hearing Aids and Auditory Modeling | ||
| Time: | Tuesday, May 18, 13:40 - 14:00 | ||
| Presentation: | Lecture | ||
| Topic: | Audio and Electroacoustics: Auditory Modeling and Hearing Aids | ||
| Title: | A REAL TIME IMPLEMENTATION AND AN EVALUATION OF AN OPTIMAL FILTERING TECHNIQUE FOR NOISE REDUCTION IN DUAL MICROPHONE HEARING AIDS | ||
| Authors: | Jean-Baptiste Maj; Katholieke Universiteit Leuven | ||
| Liesbeth Royackers; Katholieke Universiteit Leuven | |||
| Jan Wouters; Katholieke Universiteit Leuven | |||
| Abstract: | A real time implementation and an evaluation of a Singular Value Decomposition (SVD) based optimal filtering technique for noise reduction in a dual microphone BTE hearing aid is presented. A method to improve the performance of a Voice Activity Detector (VAD) is described and evaluated physically. This method is used in the real time implementation of the optimal filtering Technique. A perceptual evaluation by normal hearing subjects is carried out for single and multiple jammer sound sources with speech weighted noise. The SVD-based technique can perform as well as an adaptive beamformer strategy in a single noise scenario (i.e. the ideal scenario for the latter technique), and, can outperform the beamformer technique in a multiple noise sources scenario. | ||
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