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Multi-Actuator System for Active Sound and Vibration Cancellation

 

OHSU # 0595 (OGI-D)

Summary:

Technology Overview

A multi-actuator system for sound and vibration cancellation utilizes a LMS type algorithm having an adaptive filter. However, the error signal rather than the input is filtered through an adjoin filter of the error channel to drive an adaptive filter which in turn drives, for example, a loudspeaker to provide destructive interference for noise cancellation. This method significantly decreases computational complexity for multiple-input-output systems.

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Trina Voss
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503-494-9839