Adaptive signal processing
Speech enhancement using sub-band intermittent adaption
Speech Communication - Special issue on speech processing in adverse conditions
Adaptive filter theory (3rd ed.)
Adaptive filter theory (3rd ed.)
Speech recognition by machines and humans
Speech Communication
Speech Communication - Special issue on robust speech recognition
ICASSP '97 Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '97) -Volume 1 - Volume 1
Avoiding slow band-edge convergence in subband echo cancelers
IEEE Transactions on Signal Processing
Dual-channel speech enhancement by superdirective beamforming
EURASIP Journal on Applied Signal Processing
A z-domain transfer function solution to the non-minimum phase acoustic beamformer
International Journal of Systems Science
Tests on a real-time acoustic beamformer as a virtual instrument
ISPRA'06 Proceedings of the 5th WSEAS International Conference on Signal Processing, Robotics and Automation
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Results are presented from intelligibility tests of a two-microphone sub-band adaptive Griffiths-Jim (SBAGJ) processing scheme that has possible application to future hearing aids as a method of improving speech intelligibility and quality in a noisy reverberant environment. This SBAGJ scheme combines sub-band processing with a Griffiths-Jim "front-end" that delivers a simple system more robust to the "causality" issue inherent with some multi-microphone adaptive noise cancelling configurations. Intelligibility testing is described and results presented of an assessment of the SBAGJ scheme using ten normal hearing listeners and signals from a real reverberant environment. The results support the hypothesis that speech processing using the SBAGJ scheme can provide a statistically and practically significant improvement in speech intelligibility. Analysis of mean opinion score data shows a corresponding statistically significant improvement in subjective quality.