Sound field reproduction system
AssigneeFujitsu Ten Limited
InventorsKiyosei Shibata, Masanobu Maeda
Life of this patent
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Abstract
The present invention is directed to providing a sound field reproduction system that can enhance the sound separation between the front and rear seats or left and right seats of a vehicle. The sound field reproduction system includes a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources, a narrow-directional speaker mounted on the front seat side of the vehicle, a speaker mounted on the rear seat side of the vehicle, and a signal processing unit for driving the narrow-directional speaker based on the first sound signal that has been processed according to frequency range, and for driving the speaker based on the second sound signal.
Claims22
A sound field reproduction system comprising:
- a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources;
- a narrow-directional speaker mounted in or near a front seat of a vehicle;
- a speaker mounted in or near a rear seat of said vehicle;
- and
- a signal processing unit for driving said narrow-directional speaker based on said first sound signal that has been processed according to a frequency range, and for driving said speaker based on said second sound signal, wherein said signal processing unit is configured to create a first sound-leakage reducing sound signal from said first sound signal, to combine said first sound-leakage reducing sound signal with said second sound signal, to create a second sound-leakage reducing sound signal from said second sound signal, and to combine said second sound-leakage reducing sound signal with said first sound signal.
A sound field reproduction system comprising:
- a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources;
- a first narrow-directional speaker mounted on a passenger side of a vehicle;
- a second narrow-directional speaker mounted on a driver side of said vehicle;
- and
- a signal processing unit for driving said first narrow-directional speaker based on said first sound signal that has been processed according to frequency range, and for driving said second narrow-directional speaker based on said second sound signal has been processed according to a frequency range, wherein said signal processing unit is configured to create a first sound-leakage reducing sound signal from said first sound signal, to combine said first sound-leakage reducing sound signal with said second sound signal, to create a second sound-leakage reducing sound signal from said second sound signal, and to combine said second sound-leakage reducing sound signal with said first sound signal.
Dependencies are inferred from the claim text.