Vehicle audio system surround modes

• Main Authors: TORIO, GUY A, HOLMI, DOUGLAS J, PRAGER, LEE A
• Format: Patent
• Language: English; French; German
• Published: 27.07.2005
• Edition: 7
• Subjects: BASIC ELECTRONIC CIRCUITRY; CONTROL OF AMPLIFICATION; DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PERFORMING OPERATIONS; PUBLIC ADDRESS SYSTEMS; STEREOPHONIC SYSTEMS; TRANSMISSION; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

A surround audio system for a vehicle with a plurality of operating modes. The vehicle includes seating locations. The audio system includes a plurality of input channels including surround channels. The audio system further includes a plurality of operating modes. A first operating mode is characterized by substantially equal perceived loudnesses at each of said seating locations, an equalization pattern developed by weighting frequency responses at each of said seating locations substantially equally, and a balance pattern developed by weighting sound pressure level measurements at each of said seating locations substantially equally. A second operating mode is characterized by greater perceived loudness at one of said seating locations than at the other seating locations, an equalization pattern developed by weighting the frequency response at said one of said seating locations more heavily than the frequency responses at said other seating locations, and a balance pattern developed by weighting sound pressure level measurements at said one seating location more heavily than the weightings as said other seating locations.