Digital sound processing system for a vehicle
First Claim
1. A digital sound processing system suitable for use in a vehicle, said digital sound processing system comprising:
- an interior rearview mirror assembly;
said interior mirror assembly including at least a first microphone and a second microphone;
said first microphone generating a first signal indicative of a vocal input with vehicle cabin noise included therewith;
said second microphone generating a second signal indicative of a vocal input with vehicle cabin noise included therewith;
a digital signal processor;
said digital signal processor processing said first signal and said second signal and providing an output signal with reduced vehicle cabin noise; and
wherein said digital signal processor comprises a microprocessor, said microprocessor executing at least one million instructions per second.
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Abstract
A digital sound processing system suitable for use in a vehicle comprises an interior rearview mirror assembly that includes at least a first microphone and a second microphone. The first microphone generates a first signal indicative of a vocal input with vehicle cabin noise included therewith and the second microphone generates a second signal indicative of a vocal input with vehicle cabin noise included therewith. A digital signal processor is provided that processes the first signal and the second signal and that provides an output signal with reduced vehicle cabin noise. The digital signal processor preferably comprises a microprocessor executing at least one million instructions per second.
129 Citations
79 Claims
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1. A digital sound processing system suitable for use in a vehicle, said digital sound processing system comprising:
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an interior rearview mirror assembly; said interior mirror assembly including at least a first microphone and a second microphone; said first microphone generating a first signal indicative of a vocal input with vehicle cabin noise included therewith; said second microphone generating a second signal indicative of a vocal input with vehicle cabin noise included therewith; a digital signal processor; said digital signal processor processing said first signal and said second signal and providing an output signal with reduced vehicle cabin noise; and wherein said digital signal processor comprises a microprocessor, said microprocessor executing at least one million instructions per second. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A digital sound processing system suitable for use in a vehicle, said digital sound processing system comprising:
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an interior rearview mirror assembly; said interior mirror assembly including at least a first microphone and a second microphone; said first microphone generating a first signal indicative of a vocal input with vehicle cabin noise included therewith; said second microphone generating a second signal indicative of a vocal input with vehicle cabin noise included therewith; a digital signal processor; said digital signal processor processing said first signal and said second signal and providing an output signal with reduced vehicle cabin noise; and wherein noise reaching at least one of said first microphone and said second microphone is reduced by a passive sound insulator. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A digital sound processing system suitable for use in a vehicle, said digital sound processing system comprising:
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an interior rearview mirror assembly; said interior mirror assembly including at least a first microphone and a second microphone; said first microphone generating a first signal indicative of a vocal input with vehicle cabin noise included therewith; said second microphone generating a second signal indicative of a vocal input with vehicle cabin noise included therewith; a digital signal processor; said digital signal processor processing said first signal and said second signal and providing an output signal with reduced vehicle cabin noise; wherein said rearview mirror assembly comprises a mirror casing having a reflective element disposed thereat; and wherein at least one of said first microphone and said second microphone is located at a location chosen from the group consisting of a rear portion of said mirror casing, a bezel portion of said mirror casing, a side portion of said mirror casing, an upper portion of said mirror casing, and a lower portion of said mirror casing. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79)
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Specification