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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
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
IPC分类号： G10L21/038 , G10L19/02 , G10L21/0316
CPC分类号： G10L19/02
摘要： 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
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
IPC分类号： G10L19/008 , G10L19/02
摘要： 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：US12039984B2
公开(公告)日：2024-07-16
申请号：US17864116
申请日：2022-07-13
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
摘要： 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：US20230154473A1
公开(公告)日：2023-05-18
申请号：US18154197
申请日：2023-01-13
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
CPC分类号： G10L19/0204 , G10L25/21 , G10L19/008
摘要： An audio decoding method includes: obtaining an encoded bitstream; performing bitstream demultiplexing on the encoded bitstream to obtain a first coding parameter of a current frame; performing bitstream demultiplexing on the encoded bitstream based on a configuration parameter for tonal component coding to obtain a second coding parameter of the current frame, where the second coding parameter of the current frame includes a tonal component parameter; obtaining a first high frequency band signal and a first low frequency band signal of the current frame based on the first coding parameter; obtaining a second high frequency band signal of the current frame based on the second coding parameter and the configuration parameter for tonal component coding; and obtaining a decoded signal of the current frame based on the first high frequency band signal, the second high frequency band signal, and the first low frequency band signal.
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公开(公告)号：US20230048893A1
公开(公告)日：2023-02-16
申请号：US17965979
申请日：2022-10-14
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
IPC分类号： G10L19/02 , G10L19/22 , G10L19/16 , G10L19/008
摘要： An audio signal 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 parameter of bandwidth extension of the current frame based on the high frequency band signal, the low frequency band signal, and configuration information of the bandwidth extension; obtaining tile information, where the tile information indicates a first frequency range in which tonal component detection needs to be performed on the high frequency band signal; performing tonal component detection in the first frequency range to obtain information about a tonal component of the high frequency band signal; and performing bitstream multiplexing on the parameter of the bandwidth extension and the information of the tonal component to obtain a payload bitstream.
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公开(公告)号：US20220343926A1
公开(公告)日：2022-10-27
申请号：US17862712
申请日：2022-07-12
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
摘要： 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：US12062379B2
公开(公告)日：2024-08-13
申请号：US18072038
申请日：2022-11-30
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
IPC分类号： G10L19/02 , G10L21/038 , G10L21/0388
CPC分类号： G10L19/02
摘要： 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
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
摘要： 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
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
IPC分类号： G10L19/02
摘要： 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：US20230040515A1
公开(公告)日：2023-02-09
申请号：US17969454
申请日：2022-10-19
发明人： Bingyin Xia , Jiawei Li , Zhe Wang
摘要： 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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