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    Orientation-aware surround sound playback
    3.
    发明授权
    Orientation-aware surround sound playback 有权

    公开(公告)号：US11330372B2

    公开(公告)日：2022-05-10

    申请号：US16952367

    申请日：2020-11-19

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Xuejing Sun ,  Guilin Ma ,  Xiguang Zheng

    IPC: H04R5/04 ,  H04S7/00 ,  H04S1/00 ,  H04S3/00 ,  H04S3/02 ,  H04S5/00

    Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.

    Orientation-aware surround sound playback
    4.
    发明授权
    Orientation-aware surround sound playback 有权

    公开(公告)号：US10362401B2

    公开(公告)日：2019-07-23

    申请号：US15507195

    申请日：2015-08-27

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Xuejing Sun ,  Guilin Ma ,  Xiguang Zheng

    IPC: G06F17/00 ,  H04R5/04 ,  H04S7/00 ,  H04S1/00 ,  H04S3/00 ,  H04S3/02 ,  H04S5/00

    Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.

    Modeling a frequency response characteristic of an electro-acoustic transducer
    5.
    发明授权
    Modeling a frequency response characteristic of an electro-acoustic transducer 有权

    公开(公告)号：US10038961B2

    公开(公告)日：2018-07-31

    申请号：US15316099

    申请日：2015-06-02

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Guilin Ma ,  Xiguang Zheng ,  C. Phillip Brown

    IPC: H04R29/00 ,  H04R1/10

    CPC classification number: H04R29/001 ,  H04R1/1091 ,  H04R3/04 ,  H04S7/301

    Abstract: Example embodiments disclosed herein relate to modelling a frequency response characteristic of an electro-acoustic transducer. A method includes obtaining at least one measurement of the frequency response characteristic for at least one electro-acoustic transducer of the category. A model of a frequency response characteristic specific to a category of electro-acoustic transducers is generated at least in part based on perceptual importance of a frequency band, an averaged, normalized or microphone compensated measurement such that the distortion of the model is optimized. A further method for estimating a frequency response characteristic of an electro-acoustic transducer is based on the generated model and the sensitivity of the electro-acoustic transducer or headphone. Corresponding system and computer program product are also disclosed.

    Audio signal loudness control
    7.
    发明授权
    Audio signal loudness control 有权

    公开(公告)号：US10594283B2

    公开(公告)日：2020-03-17

    申请号：US15309907

    申请日：2015-05-22

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Guilin Ma ,  Xiguang Zheng

    IPC: H03G3/32 ,  H04S7/00 ,  G06F3/16

    Abstract: Example embodiments disclosed herein relate to audio signal loudness control. A method for controlling loudness of an audio signal is disclosed. The method includes responsive to determining presence of a noise signal, deriving a target partial loudness adjustment based, at least in part, on at least one of a first factor related to the noise signal and a second factor related to the audio signal. The method further includes determining a target partial loudness of the audio signal based, at least in part, on the target partial loudness adjustment. Corresponding system, apparatus and computer program product are also disclosed.

    Combined active noise cancellation and noise compensation in headphone
    8.
    发明授权
    Combined active noise cancellation and noise compensation in headphone 有权

    公开(公告)号：US10242659B2

    公开(公告)日：2019-03-26

    申请号：US15878145

    申请日：2018-01-23

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Guilin Ma ,  Xiguang Zheng

    IPC: H04R1/10 ,  G10K11/178 ,  H03G5/16 ,  H03G3/32

    Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone. The first audio signal is one of a noise signal representing the external noise and the content audio signal.

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