METHOD AND SYSTEM FOR AUDIO TRANSMIT LOOPBACK PROCESSING IN AN AUDIO CODEC
First Claim
1. A method for processing audio signals, the method comprising:
- in a wireless device comprising a hardware audio CODEC,receiving one or more digital audio signals to be transmitted via said wireless device; and
looping back one or more of said digital audio signals to an output device via a switch matrix integrated within said hardware audio CODEC.
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Accused Products
Abstract
Methods and systems for audio transmit loopback processing in an audio CODEC are disclosed and may include receiving digital audio signals to be transmitted via the wireless device, and looping back one or more of the signals to an output device via a switch matrix. One or more of the digital audio signals may be generated via a digital microphone, which may include a microelectromechanical (MEMS) microphone. The received digital audio signals may be filtered via decimation filters, which may include poly-phase filters. The received digital audio signals may be switched between phases of the poly-phase filters via an input switch, which may include CMOS transistors. One or more of the received digital audio signals may be generated from a received analog signal via an analog to digital converter (ADC), which may include a multi-channel ADC. The output device may include a wireless headset, loudspeaker and/or audio test equipment.
37 Citations
20 Claims
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1. A method for processing audio signals, the method comprising:
in a wireless device comprising a hardware audio CODEC, receiving one or more digital audio signals to be transmitted via said wireless device; and looping back one or more of said digital audio signals to an output device via a switch matrix integrated within said hardware audio CODEC. - 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 hardware audio CODEC and a switch matrix integrated within said hardware audio CODEC, wherein said one or more circuits are operable to receive one or more digital audio signals to be transmitted via said wireless device; and said one or more circuits being operable to loop back one or more of said digital audio signals to an output device via said switch matrix. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification