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公开(公告)号：US20230154483A1
公开(公告)日：2023-05-18
申请号：US18154549
申请日：2023-01-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiance Ding , Zhe Wang , Bin Wang , Bingyin Xia
IPC: G10L21/0232 , G10L25/84 , G10L25/87 , H04S7/00
CPC classification number: G10L21/0232 , G10L25/84 , G10L25/87 , H04S7/307
Abstract: A stereo audio signal delay estimation method includes obtaining a current frame of a stereo audio signal. The current frame includes a first channel audio signal and a second channel audio signal. Estimating an inter-channel time (ITD) of the current frame using a first algorithm when a signal type of a noise signal included in the current frame is a coherent noise signal type, or estimating the ITD using a second algorithm when the signal type of the noise signal is a diffuse noise signal type. The first algorithm includes weighting a frequency domain cross power spectrum based on a first weighting function that includes a first construction factor. The second algorithm includes weighting the frequency domain cross power spectrum based on a second weighting function that includes a second construction factor different from the first construction factor.
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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
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
CPC classification number: G10L19/0204 , G10L25/21 , G10L19/008
Abstract: 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
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyin Xia , Jiawei Li , Zhe Wang
IPC: G10L19/02 , G10L19/22 , G10L19/16 , G10L19/008
Abstract: 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：US11417353B2
公开(公告)日：2022-08-16
申请号：US16901846
申请日：2020-06-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhe Wang
Abstract: A method for detecting an audio signal and an apparatus, where the method includes determining a segmental signal-to-noise ratio (SSNR) of an audio signal in response to the audio signal being an unvoiced signal, reducing a reference voice activity detection (VAD) decision threshold to obtain a reduced VAD decision threshold, and comparing the SSNR with the reduced VAD decision threshold to determine whether the audio signal is an active signal.
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公开(公告)号：US20210312932A1
公开(公告)日：2021-10-07
申请号：US17232679
申请日：2021-04-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhe Wang
IPC: G10L19/008 , G10L19/00 , G10L19/012 , H04S3/00
Abstract: An encoder includes a signal detection circuit and a signal encoding circuit. The signal encoding circuit is configured to encode the Nth-frame downmixed signal when the signal detection circuit detects that an Nth-frame downmixed signal includes a speech signal, or when the signal detection circuit detects that the Nth-frame downmixed signal does not include a speech signal, encode the Nth-frame downmixed signal when the signal detection circuit determines that the Nth-frame downmixed signal satisfies a preset audio frame encoding condition, or skip encoding the Nth-frame downmixed signal when the signal detection circuit determines that the Nth-frame downmixed signal does not satisfy a preset audio frame encoding condition.
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Patent Agency Ranking
公开(公告)号：US10779299B2
公开(公告)日：2020-09-15
申请号：US16185926
申请日：2018-11-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guangri Chen , Zhenshan Zhao , Zhe Wang
Abstract: The present invention relates to a V2V communication method, apparatus, and terminal. The method includes: receiving, by a first terminal, a first scheduling assignment SA message that is sent by a second terminal, where the first SA message includes a first pilot resource and a first diversity multiplexing mode that are used by the second terminal; determining, by the first terminal based on the first pilot resource and the first diversity multiplexing mode, a second pilot resource and a second diversity multiplexing mode that are to be used by the first terminal; and sending, by the first terminal, a data stream to a third terminal based on the second pilot resource and the second diversity multiplexing mode.
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公开(公告)号：US20200098378A1
公开(公告)日：2020-03-26
申请号：US16697822
申请日：2019-11-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhe Wang
Abstract: A method for processing audio data includes obtaining a first noise frame of an audio signal, wherein the first noise frame includes a first low-band signal and a first high-band signal, obtaining a first low-band parameter corresponding to the first low-band signal and a first high-band parameter corresponding to the first high-band signal, encoding a first silence insertion descriptor (SID) corresponding to the first noise frame to comprise the first low-band parameter and the first high-band parameter, obtaining a second noise frame of the audio signal, wherein the second noise frame includes a second low-band signal and a second high-band signal, where the first noise frame is prior to the second noise frame in the audio signal, and determining whether a second SID corresponding to the second noise frame should comprise a second high-band parameter of the second high-band signal.
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公开(公告)号：US10593339B2
公开(公告)日：2020-03-17
申请号：US16368208
申请日：2019-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhe Wang
IPC: G10L19/008 , G10L19/00 , G10L19/012 , H04S3/00 , G10L25/78 , G10L19/24
Abstract: A multichannel audio signal processing method, an apparatus, and a system to resolve a problem that an audio signal cannot be discontinuously transmitted in a multichannel audio communications system. An encoder includes a signal detection circuit and a signal encoding circuit. The signal encoding circuit is configured to encode the Nth-frame downmixed signal when the signal detection circuit detects that an Nth-frame downmixed signal includes a speech signal, or when the signal detection circuit detects that the Nth-frame downmixed signal does not include a speech signal, encode the Nth-frame downmixed signal when the signal detection circuit determines that the Nth-frame downmixed signal satisfies a preset audio frame encoding condition, or skip encoding the Nth-frame downmixed signal when the signal detection circuit determines that the Nth-frame downmixed signal does not satisfy a preset audio frame encoding condition.
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公开(公告)号：US20190221219A1
公开(公告)日：2019-07-18
申请号：US16368208
申请日：2019-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhe Wang
IPC: G10L19/008 , H04S3/00
Abstract: A multichannel audio signal processing method, an apparatus, and a system to resolve a problem that an audio signal cannot be discontinuously transmitted in a multichannel audio communications system. An encoder includes a signal detection circuit and a signal encoding circuit. The signal encoding circuit is configured to encode the Nth-frame downmixed signal when the signal detection circuit detects that an Nth-frame downmixed signal includes a speech signal, or when the signal detection circuit detects that the Nth-frame downmixed signal does not include a speech signal, encode the Nth-frame downmixed signal when the signal detection circuit determines that the Nth-frame downmixed signal satisfies a preset audio frame encoding condition, or skip encoding the Nth-frame downmixed signal when the signal detection circuit determines that the Nth-frame downmixed signal does not satisfy a preset audio frame encoding condition.
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公开(公告)号：US20180366145A1
公开(公告)日：2018-12-20
申请号：US16108668
申请日：2018-08-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhe Wang
Abstract: An audio signal classification method and apparatus includes determining, according to voice activity of a current audio frame, whether to obtain a frequency spectrum fluctuation of the current audio frame and store the frequency spectrum fluctuation in a frequency spectrum fluctuation memory, updating, according to whether the audio frame is percussive music or activity of a historical audio frame, the frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory, and classifying the current audio frame as a speech frame or a music frame according to statistics of a part or all of effective data of the frequency spectrum fluctuations that is stored in the frequency spectrum fluctuation memory.
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