Signal processing method and device

    公开(公告)号:US12249339B2

    公开(公告)日:2025-03-11

    申请号:US18538381

    申请日:2023-12-13

    Abstract: A signal processing method and device includes obtaining spectral coefficients of a current frame of an audio signal, in which N sub-bands of the current frame comprises at least one of the spectral coefficients. A total energy of M successive sub-bands of the N sub-bands, a total energy of K successive sub-bands of the N sub-bands, and an energy of a first sub-band are obtained to determine whether to modify original envelope values of the M sub-bands. When the original envelope values of the M sub-bands are modified, encoding bits are allocated to each of the N sub-bands according to the modified envelope values of the M sub-bands.

    Time-domain stereo parameter encoding method and related product

    公开(公告)号:US12175987B2

    公开(公告)日:2024-12-24

    申请号:US18339062

    申请日:2023-06-21

    Abstract: A time-domain stereo parameter encoding method and a related product are provided. The time-domain stereo parameter encoding method includes: determining a channel combination scheme for a current frame; determining a time-domain stereo parameter of the current frame based on the channel combination scheme for the current frame; and encoding the determined time-domain stereo parameter of the current frame, where the time-domain stereo parameter includes at least one of a channel combination ratio factor or an inter-channel time difference.

    Communication method and related device

    公开(公告)号:US12003477B2

    公开(公告)日:2024-06-04

    申请号:US17615324

    申请日:2020-06-23

    CPC classification number: H04L61/2517 H04L61/256 H04W60/04 H04W76/12 H04W76/14

    Abstract: Embodiments of this application disclose a communication method and a related device. The method includes: A symmetric device listens on N local public ports, where N is a natural number greater than 1; and when the symmetric device receives a hole punching packet from the N local public ports, the symmetric device sends a response packet to a cone device based on the hole punching packet, so that the symmetric device establishes a communication connection to the cone device, where the hole punching packet is sent by the cone device, and the response packet carries a first network information mapping relationship. The cone device may directly communicate with the symmetric device, so that there is no need for a server having a data relay function, and costs of deploying the server are reduced.

    Communication network search method and apparatus

    公开(公告)号:US11974214B2

    公开(公告)日:2024-04-30

    申请号:US17542067

    申请日:2021-12-03

    CPC classification number: H04W48/16 H04W4/027

    Abstract: A communication network search method and an apparatus are disclosed. The method can include a terminal device sending a first message to a network device, where the first message includes a communication network type of the terminal device and first location information that is used during the sending of the first message. The terminal device receives a second message sent by the network device, where the second message includes N cell identifiers that are used to mark N pre-selected cells, which are determined by the network device based on the first location information and the communication network type. The terminal device determines M target cells in the N pre-selected cells based on second location information and motion status information that are used during the receiving of the second message. The terminal device searches for the M target cells.

    Stereo Encoding Method and Stereo Encoder

    公开(公告)号:US20230077905A1

    公开(公告)日:2023-03-16

    申请号:US17983724

    申请日:2022-11-09

    Abstract: In a stereo encoding method, a channel combination encoding solution of a current frame is first obtained, and then a quantized channel combination ratio factor of the current frame and an encoding index of the quantized channel combination ratio factor are obtained based on the obtained channel combination encoding solution, so that an obtained primary channel signal and secondary channel signal of the current frame meet a characteristic of the current frame.

    Encoding Method, Decoding Method, Encoding Apparatus, and Decoding Apparatus

    公开(公告)号:US20220366922A1

    公开(公告)日:2022-11-17

    申请号:US17868879

    申请日:2022-07-20

    Abstract: An encoding method includes dividing a to-be-encoded time-domain signal into a low band signal and a high band signal, performing encoding on the low band signal to obtain a low frequency encoding parameter, performing encoding on the high band signal to obtain a high frequency encoding parameter, obtaining a synthesized high band signal, performing short-time post-filtering processing on the synthesized high band signal to obtain a short-time filtering signal, and calculating a high frequency gain based on the high band signal and the short-time filtering signal.

    Audio processing method and apparatus

    公开(公告)号:US11451921B2

    公开(公告)日:2022-09-20

    申请号:US17179619

    申请日:2021-02-19

    Abstract: An audio processing method includes: M audio signals are obtained by processing an audio signal by M virtual speakers; M first HRTFs and M second HRTFs are obtained, where the M first HRTFs corresponding to a left ear position, and the M second HRTFs corresponding to a right ear position; high-band impulse responses of some of the M first HRTFs are modified to obtain modified first target HRTFs, and high-band impulse responses of some of the M second HRTFs are modified to obtain modified second target HRTFs; a first target audio signal corresponding to the left ear position is obtained based on the modified first target HRTFs and un-modified first HRTFs, and the M audio signals; and a second target audio signal corresponding to the right ear position is obtained based on the modified second HRTFs, un-modified second target HRTFs, and the M audio signals.

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