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US 5,631,964 AGranted
Audio apparatus
AssigneeKabushiki Kaisha Kenwood
InventorsTakeshi Harada, Eiki Nasu
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Abstract
Audio apparatus capable of playing music programs with desired surrounding sounds. Two sources drive two speakers having different directivities at the same time or independently. A sound field processing is performed, and the volume ratio of the two speakers having different directivities is set as desired or in accordance with a sound field pattern.
Claims4
An audio apparatus comprising:
- L-channel speakers including two speakers respectively having different directivities;
- R-channel speakers including two speakers respectively having different directivities;
- switching means for designating at least two sources from a plurality of sources;
- sound field processing means for processing the sound field of at least one source sound a signal designated by said switching means;
- and
- an adder for adding an output of said sound field processing means to a source sound signal other than said source sound signal processed by said sound field processing means,
- wherein a source sound signal obtained by adding a plurality of source sound signals from said two source designated by said switching means, and source sound signals not subjected to addition respectively drive said R-channel speakers of different directivities and said L-channel speakers of different directivities independently.
4 more elements
An audio apparatus comprising:
- L-channel speakers including two speakers respectively having different directivities;
- R-channel speakers including two speakers respectively having different directivities;
- switching means for designating at least two sources from a plurality of sources;
- sound field processing means for processing the sound field of at least one source sound signal designated by said switching means;
- an adder for adding an output of said sound field processing means to a source sound signal other than said source sound signal processed y said sound field processing means;
- and
- level adjusting means for adjusting the levels of a source sound signal obtained by the addition of said adder and a source sound signal not subjected to the addition of said adder,
- wherein said level adjusting means is manually set, and the signals whose levels have been set by said level adjusting means drive said R-channel speakers of different directivities and said L-channel speakers of different directivities independently, and
- wherein the operation of said level adjusting means is made invalid depending upon a particular sound field pattern set by said sound field processing means, and the level ratio of the source sound signals for driving said R-channel speakers of different directivities and said L-channel speakers of different directivities is fixed to a predetermined level ratio.
6 more elements
Dependencies are inferred from the claim text.