Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent
1991-04-25
1993-06-01
Ng, Jin F.
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Adjacent ear
381 94, H03B 2900
Patent
active
052167216
ABSTRACT:
A multi-channel active acoustic attenuation system has a plurality of adaptive filter channel models each of which is intraconnected to each of the remaining channel models such that each channel model has a model input from each of the remaining channel models. The correction signal from each model output to the respective output transducer is also input to each of the remaining channel models, and each channel model has an error input from each error transducer. A generalized system is provided for complex acoustic fields.
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"Development Of The Filtered-U Algorithm For Active Noise Control", L. J. Eriksson, Journal of Acoustic Society of America, 89(1), Jan., 1991, pp. 257-265.
Lefkowitz Edward
Nelson Industries Inc.
Ng Jin F.
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