METHOD AND APPARATUS FOR RENDERING ACOUSTIC SIGNAL, AND COMPUTERREADABLE RECORDING MEDIUM

    公开(公告)号:US20220322026A1

    公开(公告)日:2022-10-06

    申请号:US17841380

    申请日:2022-06-15

    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.

    Method and apparatus for rendering acoustic signal, and computer-readable recording medium

    公开(公告)号:US10687162B2

    公开(公告)日:2020-06-16

    申请号:US16504896

    申请日:2019-07-08

    Abstract: When a multi-channel signal, such as from a 22.2 channel, is rendered to a 5.1 channel, three-dimensional audio signals can be reproduced by use of a two-dimensional output channel. However, when the elevation of the input channel differs from the standard elevation and an elevation rendering parameter corresponding to the standard elevation is used, audio image distortion occurs. The present invention resolves the described issue in the existing technology, and a method of rendering audio signals, according to an embodiment of the present invention, which reduces the audio image distortion even when the elevation of the input channel differs from the standard elevation, comprises the steps of: receiving a multi-channel signal comprising a plurality of input channels to be converted into a plurality of output channels; obtaining elevation rendering parameters for a height input channel having a standard elevation angle so that each output channel provides an audio image having a sense of elevation; and updating the elevation rendering parameters for a height input channel having a set elevation angle other than the standard elevation angle.

    Method and device for generating and playing back audio signal

    公开(公告)号:US10349197B2

    公开(公告)日:2019-07-09

    申请号:US15503521

    申请日:2015-08-13

    Abstract: According to an aspect of an embodiment, an audio generation method includes: receiving an audio signal through at least one microphone; generating an input channel signal corresponding to each of the at least one microphone based on the received audio signal; generating a virtual input channel signal based on the input channel signal; generating additional information including reproduction locations of the input channel signal and the virtual input channel signal; and transmitting a multi-channel audio signal and the additional information, the multi-channel audio signal including the input channel signal and the virtual input channel signal.

    Method for processing sound on basis of image information, and corresponding device

    公开(公告)号:US10187737B2

    公开(公告)日:2019-01-22

    申请号:US15543791

    申请日:2015-01-16

    Abstract: A method of processing an audio signal including at least one audio object based on image information includes: obtaining the audio signal and a current image that corresponds to the audio signal; dividing the current image into at least one block; obtaining motion information of the at least one block; generating index information including information for giving a three-dimensional (3D) effect in at least one direction to the at least one audio object, based on the motion information of the at least one block; and processing the audio object, in order to give the 3D effect in the at least one direction to the audio object, based on the index information.

    Audio apparatus and method of converting audio signal thereof

    公开(公告)号:US10117039B2

    公开(公告)日:2018-10-30

    申请号:US13853773

    申请日:2013-03-29

    Abstract: An audio apparatus and a method of converting an audio signal are provided. The method includes: receiving a first audio signal including a plurality of channels; comparing audio signals of the plurality of channels to estimate a source position of the first audio signal; localizing a source of the first audio signal toward a three-dimensional (3D) position having an elevation component based on the estimated source position; converting the first audio signal into a second audio signal including the plurality of channels and at least one channel having, based on the localized source, a different elevation from the plurality of channels; and outputting the second audio signal.

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