Binaural Multi-Channel Wiener Filtering for Hearing Aids: Preserving Interaural Time and Level Differences

This paper presents an extension of the binaural multi-channel Wiener filtering algorithm discussed in T.J. Klasen et al. (2005). The goal of this paper is to preserve both the interaural time difference (ITD) and interaural level difference (ILD) of the speech and noise components. This is done by...

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Bibliographic Details
Main Authors: Klasen, T.J., Doclo, S., Van den Bogaert, T., Moonen, M., Wouters, J.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic noise
Auditory system
Cost function
Ear
Hearing aids
Laboratories
Noise reduction
Signal to noise ratio
Speech enhancement
Wiener filter
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Summary:This paper presents an extension of the binaural multi-channel Wiener filtering algorithm discussed in T.J. Klasen et al. (2005). The goal of this paper is to preserve both the interaural time difference (ITD) and interaural level difference (ILD) of the speech and noise components. This is done by extending the cost function to incorporate terms for the interaural transfer functions (ITF) of the speech and noise components. Using weights, the emphasis on the preservation of the ITFs can be controlled in addition to the emphasis on noise reduction. Adapting these parameters allows one to preserve the ITFs of the speech and noise component, and therefore ITD and ILD cues, while enhancing the signal-to-noise ratio
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2006.1661233