METHOD AND SYSTEM FOR DUAL DIGITAL MICROPHONE PROCESSING IN AN AUDIO CODEC
First Claim
1. A method for processing audio signals, the method comprising:
- in a wireless device comprising a single hardware audio CODEC,demultiplexing one or more received time-multiplexed digital audio signals from one or more digital microphones; and
separately processing each of said demultiplexed digital audio signals.
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Accused Products
Abstract
Methods and systems for dual digital microphone processing in an audio CODEC are disclosed and may include demultiplexing one or more received time-multiplexed digital audio signals from one or more digital microphones, and separately processing each of the demultiplexed digital audio signals. The digital microphones may include microelectromechanical (MEMS) microphones. The demultiplexed digital audio signals may be level-converted, downshifted, and/or filtered. The filtering may include a finite impulse response (FIR) filter. A sampling rate of the one or more demultiplexed digital audio signals may be converted by repeating the demultiplexed digital audio signals. Audio beamforming and/or diversity processing may be performed utilizing the digital microphones.
56 Citations
20 Claims
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1. A method for processing audio signals, the method comprising:
in a wireless device comprising a single hardware audio CODEC, demultiplexing one or more received time-multiplexed digital audio signals from one or more digital microphones; and separately processing each of said demultiplexed digital audio signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for processing audio signals, the system comprising:
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one or more circuits in a wireless device, said one or more circuits comprising a single hardware audio CODEC and wherein said one or more circuits are operable to demultiplex one or more received time-multiplexed digital audio signals from one or more digital microphones; and said one or more circuits being operable to separately process each of said demultiplexed digital audio signals. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification