Acoustic system for vehicle and corresponding device
First Claim
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1. Acoustic system for a vehicle comprising:
- at least one source adapted to produce a source sound signal;
at least one set of at least two speakers, each of the said speakers being adapted to produce a final sound signal associated with it; and
at least one predetermined location in which at least one listener will be positioned;
each location being associated with a given set of at least two speakers;
characterised in that, for at least one given location, the associated set includes at least one pair of speakers called the right and left speakers, that are positioned approximately symmetrically with respect to the said given location, and in that the system also includes filtering means making at least two separate filtering operations of the source signal to output at least two filtered sound signals each activating one of the right and left speakers, such that the final sound signals produced for the right and left speakers are approximately coherent in phase and in amplitude when perceived by a listener positioned in the said given location.
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Abstract
The invention relates to an acoustic system for a vehicle including at least one source adapted to produce a source sound signal and at least one set of at least two speakers, each of the speakers being adapted to produce a sound signal associated with it. The system further includes a filter making at least two separate filtering operations of the source signal to output at least two sound signals each associated with at least one of the speakers, such that they are approximately coherent in phase and in amplitude when perceived by at least one of the listeners positioned in a predetermined location.
36 Citations
17 Claims
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1. Acoustic system for a vehicle comprising:
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at least one source adapted to produce a source sound signal;
at least one set of at least two speakers, each of the said speakers being adapted to produce a final sound signal associated with it; and
at least one predetermined location in which at least one listener will be positioned;
each location being associated with a given set of at least two speakers;
characterised in that, for at least one given location, the associated set includes at least one pair of speakers called the right and left speakers, that are positioned approximately symmetrically with respect to the said given location, and in that the system also includes filtering means making at least two separate filtering operations of the source signal to output at least two filtered sound signals each activating one of the right and left speakers, such that the final sound signals produced for the right and left speakers are approximately coherent in phase and in amplitude when perceived by a listener positioned in the said given location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. Device for vehicle designed to be associated with an acoustic system, the said system including:
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at least one source adapted to produce a source sound signal;
at least one set of at least two speakers, each of the said speakers being adapted to produce a final sound signal associated with it; and
at least one predetermined location in which at least one listener will be positioned, each location being associated with a given set of at least two speakers;
characterised in that, for a given location, the associated set includes at least one pair of speakers called the right and left speakers, that are positioned approximately symmetrically with respect to the said given location, and in that the device also includes filter making at least two separate filtering operations of the source signal to output at least two filtered sound signals each activating one of the right and left speakers, such that the final sound signals produced for the right and left speakers are approximately coherent in phase and in amplitude when perceived by a listener positioned in the said given location.
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Specification