Objective Perceptual Quality Assessment for Self-Steering Binaural Hearing Aid Microphone Arrays

Authors:

T. Rohdenburg, S. Goetze, V. Hohmann, K.-D. Kammeyer, B. Kollmeier

Abstract:

In this study a self-steering beamformer with binaural output for a head-worn microphone array is investigated in simulated and realworld conditions. The influence of the underlying sound propagation model on the estimation accuracy of the direction of arrival (DOA) estimation algorithm and the overall performance of the combined DOA-beamformer-system is evaluated. For this, technical performance measures as well as objective quality measures based on perceptual models of the auditory system are used. The self-steering beamformer showed better performance than a beamformer with fixed look-direction for SNR values above -2 dB if the propagation model includes at least a coarse head model.

Document type:

Conference Paper

Publication:

Las Vegas, USA, 30. March - 4. April 2008

Conference:

International Conference on Acoustics, Speech, and Signal Processing (ICASSP 08)

Pages:

2449-2452

Files:

Poster