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Objective perceptual quality assessment for self-steering binaural hearing aid microphone arrays

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


Institute of Electrical and Electronics Engineers -IEEE-:
2008 IEEE International Conference on Acoustics, Speech and Signal Processing. Vol. 6 : Las Vegas, NV, 31 March - 4 April 2008
Piscataway, NJ: IEEE, 2008
ISBN: 1-424-41483-0 (print)
ISBN: 978-1-424-41483-3
ISBN: 1-424-41484-9
International Conference on Acoustics, Speech, and Signal Processing (ICASSP) <2008, Las Vegas/Nev.>
Fraunhofer IDMT ()

In this study a self-steering beamformer with binaural output for a head-worn microphone array is investigated in simulated and real- world 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.