NOVEL PRE-PROCESS (AMPLITUDE DISTORTION) AND POST-PROCESS (PHASE SYNCHRONIZATION) FOR LINEAR AEC SYSTEM
First Claim
1. An audio processing apparatus, comprising:
- a pre-processing component, that compensates a non-linearity of a reference signal to generate an input signal,a filter, coupled to the pre-processing component, the filter executes filtering on the input signal to generate an output signal, anda first signal processing component, coupled to the pre-processing component, the reference signal obtains a gain from the first signal processing component to generate a first signal, and the first signal processing component passes the gain to the pre-processing component.
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Abstract
An acoustic processing apparatus is provided. The apparatus includes a pre-processing component, a filter and a first signal processing component. The pre-processing component compensates a non-linearity of a reference signal to generate an input signal. The filter coupled to the pre-processing component, the filter executes filtering on the input signal to generate an output signal. The first signal processing component, coupled to the pre-processing component, the reference signal obtains a gain from the first signal processing component to generate a first signal, and the first signal processing component passes the gain to the pre-processing component.
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Citations
21 Claims
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1. An audio processing apparatus, comprising:
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a pre-processing component, that compensates a non-linearity of a reference signal to generate an input signal, a filter, coupled to the pre-processing component, the filter executes filtering on the input signal to generate an output signal, and a first signal processing component, coupled to the pre-processing component, the reference signal obtains a gain from the first signal processing component to generate a first signal, and the first signal processing component passes the gain to the pre-processing component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An acoustic echo cancellation apparatus, comprising:
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a pre-processing component, that compensates a non-linearity of a reference signal to generate an input signal, a filter, coupled to the pre-processing component, the filter executes filtering on the input signal to generate an output signal, a signal processing component, coupled to the pre-processing component, the reference signal obtaining a gain from the signal processing component to generate a first signal, and the signal processing component passing the gain to the pre-processing component, and a phase synchronization element, coupled to the output signal of the filter and to the first signal of the signal processing component, wherein the phase synchronization element aligns the output signal in phase with the first signal to generate a phase synchronizing signal. - View Dependent Claims (11, 12)
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13. An audio processing method, comprising:
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compensating a non-linearity of a reference signal, by a pre-processing component, to generate an input signal; and executing filtering on the input signal, by a filter, to generate an output signal, wherein the reference signal obtains a gain from a first signal processing component to generate a first signal, and the first signal processing component passes the gain to the pre-processing component. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification