Adaptive signal processing
Speech Communication - Special issue on speech processing in adverse conditions
Discrete Time Processing of Speech Signals
Discrete Time Processing of Speech Signals
Signal processing in high-end hearing aids: state of the art, challenges, and future trends
EURASIP Journal on Applied Signal Processing
EURASIP Journal on Advances in Signal Processing - Special issue on digital signal processing for hearing instruments
Theoretical analysis of binaural multimicrophone noise reduction techniques
IEEE Transactions on Audio, Speech, and Language Processing
Integrated active noise control and noise reduction in hearing aids
IEEE Transactions on Audio, Speech, and Language Processing
GSVD-based optimal filtering for single and multimicrophone speech enhancement
IEEE Transactions on Signal Processing
A delayless subband adaptive filter architecture
IEEE Transactions on Signal Processing
An objective measure for predicting subjective quality of speech coders
IEEE Journal on Selected Areas in Communications
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This paper presents weighted approaches for integrated active noise control and noise reduction in hearing aids. The unweighted integrated active noise control and noise reduction scheme introduced in the previous work does not allow to trade-off between the active noise control and the noise reduction. In some circumstances it will, however, be useful to emphasize one of the functional blocks. Changing the original optimisation problem to a constrained optimisation problem leads to a scheme based on a weighted mean squared error criterion that allows to focus either on the active noise control or on the noise reduction. It is similarly possible to derive a scheme that allows to focus either on reducing the speech distortion or on reducing the residual noise at the eardrum. In a single speech source scenario and when the number of sound sources (speech plus noise sources) is less than or equal to the number of microphones, it is possible to derive a simple formula for the output signal-to-noise ratio of the latter scheme. It can then be shown that this scheme delivers a constant signal-to-noise ratio at the eardrum for any weighting factor.