IN-CAR COMMUNICATION SYSTEM FOR MULTIPLE ACOUSTIC ZONES
First Claim
1. A sound processing system suitable for use in a vehicle having a plurality of microphones and a plurality of loudspeakers distributed in multiple acoustic zones, the system comprising:
- a plurality of microphone In-Car Communication (Mic-ICC) instances coupled to corresponding ones of the plurality of microphones;
a plurality of loudspeaker In-Car Communication (Ls-ICC) instances coupled to corresponding ones of the plurality of loudspeakers;
a dynamic audio routing matrix comprising;
a controller and coupled to the plurality of Mic-ICC instances;
a mixer coupled to the plurality of Mic-ICC instances; and
a distributor coupled to the plurality of Ls-ICC instances.
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Accused Products
Abstract
An In-Car Communication (ICC) system supports the communication paths within a car by receiving the speech signals of a speaking passenger and playing it back for one or more listening passengers. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in a vehicle having multiple acoustic zones includes a plurality of microphone In-Car Communication (Mic-ICC) instances coupled and a plurality of loudspeaker In-Car Communication (Ls-ICC) instances. The system further includes a dynamic audio routing matrix with a controller and coupled to the Mic-ICC instances, a mixer coupled to the plurality of Mic-ICC instances and a distributor coupled to the Ls-ICC instances.
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Citations
27 Claims
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1. A sound processing system suitable for use in a vehicle having a plurality of microphones and a plurality of loudspeakers distributed in multiple acoustic zones, the system comprising:
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a plurality of microphone In-Car Communication (Mic-ICC) instances coupled to corresponding ones of the plurality of microphones; a plurality of loudspeaker In-Car Communication (Ls-ICC) instances coupled to corresponding ones of the plurality of loudspeakers; a dynamic audio routing matrix comprising; a controller and coupled to the plurality of Mic-ICC instances; a mixer coupled to the plurality of Mic-ICC instances; and a distributor coupled to the plurality of Ls-ICC instances. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for providing speech intelligibility in a vehicle having a plurality of microphones and a plurality of loudspeakers distributed in multiple acoustic zones, the method comprising:
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processing speech from the plurality of microphones using a corresponding plurality of microphone In-Car Communication (Mic-ICC) instances; analyzing signals from the plurality of Mic-ICC instances; detecting speech and determining active acoustic paths; calculating weights for the plurality of Mic-ICC instances based on speech and active acoustic paths; applying the calculated weights to provide weighted audio signals; and distributing the weighted audio signals to a plurality of loudspeaker ICC (Ls-ICC) instances coupled to corresponding ones of the plurality of loudspeakers. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A sound processing system suitable for use in a vehicle, the system comprising:
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a plurality of microphones distributed within the vehicle; a plurality of loudspeakers distributed within the vehicle; a plurality of microphone In-Car Communication (Mic-ICC) processors operable to receive a microphone output from corresponding ones of the plurality of microphones and process respective Mic-ICC outputs; a dynamic audio routing matrix operable to receive and process the respective processed microphone outputs from each of plurality of Mic-ICC processors to produce respective dynamic audio routing matrix outputs; and a plurality of loudspeaker In-Car Communication (Ls-ICC) processors operable to receive and process a respective dynamic audio routing matrix output and to provide an audio signal to corresponding ones of the plurality of loudspeakers distributed within the vehicle. - View Dependent Claims (27)
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Specification