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    Method and device for rendering acoustic signal, and computer-readable recording medium
    3.
    发明授权
    Method and device for rendering acoustic signal, and computer-readable recording medium 有权

    公开(公告)号：US10484810B2

    公开(公告)日：2019-11-19

    申请号：US16379211

    申请日：2019-04-09

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sang-Bae Chon ,  Sun-min Kim

    IPC: H04S7/00 ,  H04S5/00 ,  H04S3/00

    Abstract: A method of elevation rendering an audio signal includes receiving multichannel signals including a height input channel signal of a predetermined elevation angle, obtaining first elevation rendering parameters for a height input channel signal of a standard elevation angle, obtaining a delayed height input channel signal by applying a predetermined delay to a height input channel signal, updating the first elevation rendering parameters based on the predetermined elevation angle, obtaining second elevation rendering parameters based on the label of the height input channel signal and labels of two output channel signals, and elevation rendering the multichannel signals and the delayed height input channel signal to output a plurality of output channel signals of an elevated sound image, based on the updated first elevation rendering parameters and the second elevation rendering parameters.

    Method and device for rendering acoustic signal, and computer-readable recording medium
    4.
    发明授权
    Method and device for rendering acoustic signal, and computer-readable recording medium 有权

    公开(公告)号：US10299063B2

    公开(公告)日：2019-05-21

    申请号：US16004774

    申请日：2018-06-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sang-Bae Chon ,  Sun-min Kim

    IPC: H04S7/00 ,  H04S3/00 ,  H04S5/00

    Abstract: When a channel signal, such as a 22.2 channel signal, is rendered into a 5.1 channel signal, a three-dimensional (3D) audio may be reproduced by using a two-dimensional (2D) output channel, however, when an elevation angle of an input channel is different from a standard elevation angle, if elevation rendering parameters according to the standard elevation angle are used, distortion may occur in a sound image. In order to solve the aforementioned problem according to the related art and to prevent front-back confusion due to a surround output channel, an embodiment of the present invention provides a method of rendering an audio signal, the method including receiving a multichannel signal including a plurality of input channels to be converted to a plurality of output channels; adding a preset delay to a frontal height input channel so as to allow each of the plurality of output channels to provide a sound image having an elevation at a reference elevation angle; changing, based on the added delay, an elevation rendering parameter with respect to the frontal height input channel; and preventing front-back confusion by generating, based on the changed elevation rendering parameter, an elevation-rendered surround output channel delayed with respect to the frontal height input channel.

    Method and apparatus for rendering acoustic signal, and computer-readable recording medium
    5.
    发明授权
    Method and apparatus for rendering acoustic signal, and computer-readable recording medium 有权

    公开(公告)号：US12035130B2

    公开(公告)日：2024-07-09

    申请号：US17841412

    申请日：2022-06-15

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sang-Bae Chon ,  Sun-Min Kim ,  Hyun Jo

    IPC: H04S7/00 ,  G10L19/008 ,  H04S3/00

    CPC classification number: H04S7/308 ,  G10L19/008 ,  H04S3/002 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2400/13 ,  H04S2420/01 ,  H04S2420/03

    Abstract: In cases of rendering a multichannel signal such as a 22.2 channel signal as a 5.1 channel signal, a three dimensional (3D) audio signal may be reproduced using a two dimensional (2D) output channel, but rendered audio signals are sensitively affected by a layout of speakers and may cause distortion of a sound image when the layout of arranged speakers is different from a standard layout. The present invention may solve the aforementioned problem of the prior art. The audio signal rendering method for reducing distortion of a sound image even when the layout of the arranged speakers is different from the standard layout, according to one embodiment of the present invention, includes: receiving a multi-channel signal including a plurality of input channels that are to be converted to a plurality of output channels; obtaining deviation information about at least one output channel, from a location of a speaker and a standard location corresponding to each of the plurality of output channels; and modifying a panning gain from a height channel included in the plurality of input channels to the output channel having the deviation information, based on obtained deviation information.

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