System and method for reducing baffle vibration
AssigneeBose Corporation
InventorsKevin J. Bastyr, Michael W. Stark
Life of this patent
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Abstract
Adjustments to an electro-acoustic transducer may be made to match the performance of a second electro-acoustic transducer such that a net inertial force generated by movement of the electro-acoustic transducers' diaphragms are substantially zero. Adjustments may include adjusting a moving mass of one of the elector-acoustic transducers. Adjustments may include applying an equalization to one of the electro-acoustic transducers.
Claims7
A system comprising:
- a housing attached to a baffle, the housing supporting a plurality of electro-acoustic transducers having substantially the same performance characteristics in an asymmetric configuration applying a different acoustic load to at least one of the plurality of electro-acoustic transducers than is applied to at least one other of the plurality of electro-acoustic transducers;
- and
- a predetermined mass attached to the at least one of the plurality of electro-acoustic transducers, the mass selected based upon a configuration of the housing to reduce a net mechanical force generated by the plurality of electro-acoustic transducers acting on the baffle by at least one order of magnitude relative to an inertial force generated by a single electro-acoustic transducer of the same type.
A method of reducing baffle vibration in a housing supporting a first and a second electro-acoustic transducer having substantially the same performance characteristics in an asymmetric configuration applying different acoustic loads to the first and second electro-acoustic transducers, the method comprising adjusting the second electro-acoustic transducer such that a net mechanical force generated by the first and second electro-acoustic transducers is substantially zero,
- wherein the step of adjusting includes attaching a predetermined mass selected based upon a configuration of the housing to a moving element of the first electro-acoustic transducer.
Dependencies are inferred from the claim text.