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公开(公告)号：US11375310B2
公开(公告)日：2022-06-28
申请号：US17301466
申请日：2021-04-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiwei Kou , Xiansheng Li , Xiangyu Zhao
Abstract: The present application provides a method of audio signal processing. The method comprises obtaining a voice coil direct current resistance of a speaker. The method further comprises obtaining an audio input signal to be input into the speaker. The method further comprises determining an audio input power based on the voice coil direct current resistance and the audio input signal. The method further comprises obtaining a thermal model of the speaker, and determining a transient power threshold based on the audio input power and the thermal model. The method further comprises determining a power constraint gain based on the audio input power and the transient power threshold. The method further comprises obtaining a voice coil temperature of the speaker. The method further comprises determining a temperature constraint gain based on the voice coil temperature and an upper operating temperature limit of the speaker. The method further comprises adjusting the audio input signal based on the power constraint gain and the temperature constraint gain, to obtain a target signal.
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公开(公告)号：US11956607B2
公开(公告)日：2024-04-09
申请号：US17698684
申请日：2022-03-18
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04R3/04 , H04R3/002 , H04R29/001
Abstract: A method includes: performing interpolation on a second nonlinear parameter of a speaker based on direct current resistance of the speaker to obtain a third nonlinear parameter of the speaker, where the second nonlinear parameter is a nonlinear parameter preconfigured in the speaker; performing signal compensation on a first input signal of the speaker based on the third nonlinear parameter to obtain a compensated first input signal; and performing filtering on the compensated first input signal to obtain an output signal of the speaker.
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公开(公告)号：US20220225026A1
公开(公告)日：2022-07-14
申请号：US17698684
申请日：2022-03-18
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method includes: performing interpolation on a second nonlinear parameter of a speaker based on direct current resistance of the speaker to obtain a third nonlinear parameter of the speaker, where the second nonlinear parameter is a nonlinear parameter preconfigured in the speaker; performing signal compensation on a first input signal of the speaker based on the third nonlinear parameter to obtain a compensated first input signal; and performing filtering on the compensated first input signal to obtain an output signal of the speaker.
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