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公开(公告)号：US12039984B2
公开(公告)日：2024-07-16
申请号：US17864116
申请日：2022-07-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
Abstract: The present disclosure discloses an audio encoding and decoding method and an audio encoder and decoder. The audio encoding method includes: obtaining a current frame of an audio signal, where the current frame includes a high frequency band signal and a low frequency band signal; obtaining a first encoding parameter based on the high frequency band signal and the low frequency band signal; obtaining a second encoding parameter of the current frame based on the high frequency band signal, where the second encoding parameter includes tone component information; and performing bitstream multiplexing on the first encoding parameter and the second encoding parameter, to obtain an encoded bitstream.
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公开(公告)号：US12100408B2
公开(公告)日：2024-09-24
申请号：US18072245
申请日：2022-11-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
IPC: G10L21/038 , G10L19/02 , G10L21/0316
CPC classification number: G10L19/02
Abstract: An audio coding method includes obtaining a current frame of an audio signal, where the current frame includes a high frequency band signal; coding the high frequency band signal to obtain a coding parameter of the current frame, where coding includes tonal component screening, the coding parameter indicates information about a target tonal component of the high frequency band signal, the target tonal component is obtained after tonal component screening, and information about a tonal component includes location information, quantity information, and amplitude information or energy information of the tonal component; and performing bitstream multiplexing on the coding parameter to obtain a coded bitstream.
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公开(公告)号：US20230138871A1
公开(公告)日：2023-05-04
申请号：US18146616
申请日：2022-12-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
IPC: G10L19/008 , G10L19/02
Abstract: This application provides an audio encoding method and an encoding device. The method includes: obtaining a current frame includes a high frequency band signal and a low frequency band signal; performing first encoding on the high frequency band signal and the low frequency band signal, to obtain a first encoding parameter; performing second encoding on the high frequency band signal to obtain a second encoding parameter which indicates information about a tonal component of the high frequency band signal; adjusting, based on the information, a spectrum of a high frequency band signal obtained through bandwidth extension, to obtain an adjusted spectrum of the high frequency band signal; performing third encoding based on the adjusted spectrum of the high frequency band signal to obtain a third encoding parameter.
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公开(公告)号：US20170346954A1
公开(公告)日：2017-11-30
申请号：US15596260
申请日：2017-05-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin WANG , Bingyin Xia , Zexin Liu , Lei Miao
CPC classification number: H04M11/06 , G10L19/167 , G10L19/173 , G10L19/24 , G10L21/038 , H04M7/006 , H04N7/15
Abstract: Present disclosure disclose a voice signal processing method, includes: receiving a first voice coded signal from a first terminal; performing voice decoding processing on the first voice coded signal to obtain a voice decoding parameter and a first voice decoded signal; performing, by using the voice decoding parameter, virtual bandwidth extension processing to obtain a bandwidth extension voice decoded signal corresponding to the first voice decoded signal; after combining the first voice decoded signal and the bandwidth extension voice decoded signal, performing voice coding processing to obtain a second voice coded signal; and sending the second voice coded signal to a second terminal that establishes a call connection to the first terminal, where a maximum frequency bandwidth supported by the first terminal is less than a maximum frequency bandwidth supported by the second terminal. Thus, Service quality of terminals that have asymmetric maximum frequency bandwidth support capabilities can be improved.
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公开(公告)号：US12198706B2
公开(公告)日：2025-01-14
申请号：US17969454
申请日：2022-10-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
Abstract: An audio signal coding method is provided that includes: obtaining a current frame of an audio signal; obtaining a coding parameter based on a power spectrum ratio of a current frequency in a current frequency area of at least a part of signals of the current frame, where the coding parameter indicates tonal component information of the at least a part of signals, the tonal component information includes at least one of location information of a tonal component, quantity information of tonal components, amplitude information of the tonal component, or energy information of the tonal component, and the power spectrum ratio of the current frequency is a ratio of a value of a power spectrum of the current frequency to a mean value of power spectrums of the current frequency area; and performing bitstream multiplexing on the coding parameter to obtain a coded bitstream.
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Patent Agency Ranking
公开(公告)号：US20220343926A1
公开(公告)日：2022-10-27
申请号：US17862712
申请日：2022-07-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
Abstract: An audio decoding method includes obtaining an encoded bitstream; performing bitstream demultiplexing on the encoded bitstream, to obtain a high frequency band parameter of a current frame of an audio signal, wherein the high frequency band parameter indicates a location, a quantity, and an amplitude or energy of a tone component comprised in a high frequency band signal of the current frame; obtaining a reconstructed high frequency band signal of the current frame based on the high frequency band parameter; and obtaining an audio output signal of the current frame based on the reconstructed high frequency band signal of the current frame.
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公开(公告)号：US10218856B2
公开(公告)日：2019-02-26
申请号：US15596260
申请日：2017-05-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Wang , Bingyin Xia , Zexin Liu , Lei Miao
IPC: G06F3/16 , G10L19/008 , H04M11/06 , G10L19/16 , H04M7/00 , H04N7/15 , G10L21/038 , G10L19/24
Abstract: Present disclosure disclose a voice signal processing method, includes: receiving a first voice coded signal from a first terminal; performing voice decoding processing on the first voice coded signal to obtain a voice decoding parameter and a first voice decoded signal; performing, by using the voice decoding parameter, virtual bandwidth extension processing to obtain a bandwidth extension voice decoded signal corresponding to the first voice decoded signal; after combining the first voice decoded signal and the bandwidth extension voice decoded signal, performing voice coding processing to obtain a second voice coded signal; and sending the second voice coded signal to a second terminal that establishes a call connection to the first terminal, where a maximum frequency bandwidth supported by the first terminal is less than a maximum frequency bandwidth supported by the second terminal. Thus, Service quality of terminals that have asymmetric maximum frequency bandwidth support capabilities can be improved.
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公开(公告)号：US12062379B2
公开(公告)日：2024-08-13
申请号：US18072038
申请日：2022-11-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
IPC: G10L19/02 , G10L21/038 , G10L21/0388
CPC classification number: G10L19/02
Abstract: An audio coding method includes obtaining a current frame that includes a high-frequency band signal and a low-frequency band signal; performing first coding on the high-frequency band signal and the low-frequency band signal to obtain a first coding parameter; determining a spectrum reservation flag of each frequency bin of the high-frequency band signal, where the spectrum reservation flag indicates whether a first spectrum corresponding to the frequency bin is reserved in a second spectrum corresponding to the frequency bin; and performing second coding on the high-frequency band signal based on the spectrum reservation flag of each frequency bin of the high-frequency band signal to obtain a second coding parameter, where the second coding parameter indicates information about a target tonal component of the high-frequency band signal.
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公开(公告)号：US11887610B2
公开(公告)日：2024-01-30
申请号：US17862712
申请日：2022-07-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
Abstract: An audio decoding method includes obtaining an encoded bitstream; performing bitstream demultiplexing on the encoded bitstream, to obtain a high frequency band parameter of a current frame of an audio signal, wherein the high frequency band parameter indicates a location, a quantity, and an amplitude or energy of a tone component comprised in a high frequency band signal of the current frame; obtaining a reconstructed high frequency band signal of the current frame based on the high frequency band parameter; and obtaining an audio output signal of the current frame based on the reconstructed high frequency band signal of the current frame.
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公开(公告)号：US20230137053A1
公开(公告)日：2023-05-04
申请号：US18072038
申请日：2022-11-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
IPC: G10L19/02
Abstract: An audio coding method includes obtaining a current frame that includes a high-frequency band signal and a low-frequency band signal; performing first coding on the high-frequency band signal and the low-frequency band signal to obtain a first coding parameter; determining a spectrum reservation flag of each frequency bin of the high-frequency band signal, where the spectrum reservation flag indicates whether a first spectrum corresponding to the frequency bin is reserved in a second spectrum corresponding to the frequency bin; and performing second coding on the high-frequency band signal based on the spectrum reservation flag of each frequency bin of the high-frequency band signal to obtain a second coding parameter, where the second coding parameter indicates information about a target tonal component of the high-frequency band signal.
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