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公开(公告)号：US20170223477A1
公开(公告)日：2017-08-03
申请号：US15322051
申请日：2015-06-26
发明人： Sang-bae CHON , Sun-min KIM
CPC分类号： H04S7/302 , H04S3/008 , H04S5/005 , H04S2400/01 , H04S2400/03 , H04S2420/05
摘要： 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.
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公开(公告)号：US20170094438A1
公开(公告)日：2017-03-30
申请号：US15371453
申请日：2016-12-07
发明人： Sang-bae CHON , Sun-min KIM , Hyun JO , Jeong-su KIM
CPC分类号： H04S7/302 , H04S3/008 , H04S5/005 , H04S2400/01 , H04S2400/11 , H04S2400/13 , H04S2420/01
摘要： An audio apparatus and an audio providing method thereof are provided. The audio providing method includes receiving an audio signal including a plurality of channels, applying an audio signal having a channel, from among the plurality of channels, giving a sense of elevation to a filter to generate a plurality of virtual audio signals to be respectively output to a plurality of speakers, applying a combination gain value and a delay value to the plurality of virtual audio signals so that the plurality of virtual audio signals respectively output through the plurality of speakers form a sound field having a plane wave, and respectively outputting the plurality of virtual audio signals, to which the combination gain value and the delay value are applied, through the plurality of speakers. The filter processes the audio signal to have a sense of elevation.
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公开(公告)号：US20160330560A1
公开(公告)日：2016-11-10
申请号：US15110861
申请日：2015-01-12
发明人： Sang-bae CHON , Sun-min KIM
CPC分类号： H04S3/008 , G10L19/008 , G10L19/20 , H04S5/005 , H04S7/307 , H04S2400/01 , H04S2400/03 , H04S2400/07 , H04S2420/01 , H04S2420/07
摘要： A three-dimensional (3D) audio reproducing method and apparatus is provided. The 3D audio reproducing method may include receiving a multichannel signal comprising a plurality of input channels; and performing downmixing according to a frequency range of the multichannel signal in order to format-convert the plurality of input channels into a plurality of output channels having elevation.
摘要翻译： 提供三维（3D）音频再现方法和装置。 3D音频再现方法可以包括接收包括多个输入声道的多声道信号; 以及根据所述多通道信号的频率范围执行下混合，以便将所述多个输入通道格式化为具有高程的多个输出通道。
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4.发明申请公开(公告)号：US20220322027A1
公开(公告)日：2022-10-06
申请号：US17841412
申请日：2022-06-15
发明人： Sang-bae CHON , Sun-min KIM , Hyun JO
IPC分类号： H04S7/00 , H04S3/00 , G10L19/008
摘要： 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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公开(公告)号：US20210120354A1
公开(公告)日：2021-04-22
申请号：US17115120
申请日：2020-12-08
发明人： Sang-bae CHON
IPC分类号： H04S3/00 , G10L19/008
摘要： A method of reproducing a multi-channel audio signal including an elevation sound signal in a horizontal layout environment is provided, thereby obtaining a rendering parameter according to a rendering type and configuring a down-mix matrix, and thus effective rendering performance may be obtained with respect to an audio signal that is not suitable for applying virtual rendering. A method of rendering an audio signal includes receiving a multi-channel signal includes a plurality of input channels to be converted into a plurality of output channels; determining a rendering type for elevation rendering based on a parameter determined from a characteristic of the multi-channel signal; and rendering at least one height input channel according to the determined rendering type, wherein the parameter is included in a bitstream of the multi-channel signal.
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公开(公告)号：US20160044434A1
公开(公告)日：2016-02-11
申请号：US14781235
申请日：2014-03-28
发明人： Sang-bae CHON , Sun-min KIM , Hyun JO , Jeong-su KIM
IPC分类号： H04S5/00
CPC分类号： H04S7/302 , H04S3/008 , H04S5/005 , H04S2400/01 , H04S2400/11 , H04S2400/13 , H04S2420/01
摘要： Disclosed are an audio apparatus and an audio providing method thereof. The audio providing method includes receiving an audio signal including a plurality of channels, applying an audio signal having a channel, from among the plurality of channels, giving a sense of elevation to a filter to generate a plurality of virtual audio signals to be respectively output to a plurality of speakers, applying a combination gain value and a delay value to the plurality of virtual audio signals so that the plurality of virtual audio signals respectively output through the plurality of speakers form a sound field having a plane wave, and respectively outputting the plurality of virtual audio signals, to which the combination gain value and the delay value are applied, through the plurality of speakers. The filter processes the audio signal to have a sense of elevation.
摘要翻译： 公开了一种音频装置及其音频提供方法。 音频提供方法包括从多个信道中接收包括多个信道的音频信号，应用具有信道的音频信号，给出滤波器的高程感，以产生要分别输出的多个虚拟音频信号 向多个扬声器施加组合增益值和延迟值到多个虚拟音频信号，使得分别通过多个扬声器输出的多个虚拟音频信号形成具有平面波的声场，并分别输出 多个虚拟音频信号通过多个扬声器施加组合增益值和延迟值。 滤波器处理音频信号以具有高程感。
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7.发明申请AUDIO APPARATUS, METHOD OF PROCESSING AUDIO SIGNAL, AND A COMPUTER-READABLE RECORDING MEDIUM STORING PROGRAM FOR PERFORMING THE METHOD 审中-公开音频设备，处理音频信号的方法以及用于执行方法的计算机可读记录媒体存储程序公开(公告)号：US20140153752A1
公开(公告)日：2014-06-05
申请号：US14093678
申请日：2013-12-02
发明人： Sang-bae CHON , Sun-min KIM , Jae-ha PARK , Hyun-min KIM , Jeong-su KIM
IPC分类号： H04S7/00
CPC分类号： H04S7/303 , H04S2400/11
摘要： An audio apparatus and a method of processing an audio signal of the audio apparatus are provided. The method includes: receiving a main audio and an interactive audio; panning the interactive audio by using position information of a user, sound source position information of the interactive audio, and speaker position information; rendering the panned interactive audio according to a space characteristic of the main audio; and mixing and outputting the rendered interactive audio and the main audio to provide the user with a more lively interactive audio.
摘要翻译： 提供了音频装置和处理音频装置的音频信号的方法。 该方法包括：接收主音频和交互音频; 通过使用用户的位置信息，交互式音频的声源位置信息和扬声器位置信息来平移交互式音频; 根据主音频的空间特性渲染平移交互式音频; 以及混合和输出所渲染的交互式音频和主音频，以向用户提供更活泼的交互式音频。
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公开(公告)号：US20200260204A1
公开(公告)日：2020-08-13
申请号：US16861354
申请日：2020-04-29
发明人： Sang-bae CHON , Sun-min KIM , Hyun JO
摘要： A three-dimensional sound reproducing method includes: acquiring a multichannel audio signal; rendering signals to a channel to be reproduced according to channel information and a frequency of the multichannel audio signal; and mixing the rendered signals.
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公开(公告)号：US20180279064A1
公开(公告)日：2018-09-27
申请号：US15990053
申请日：2018-05-25
发明人： Sang-bae CHON , Sun-min KIM , Hyun JO , Jeong-su KIM
CPC分类号： H04S7/302 , H04S3/008 , H04S5/005 , H04S2400/01 , H04S2400/11 , H04S2400/13 , H04S2420/01
摘要： An audio apparatus and an audio providing method thereof are provided. The audio providing method includes receiving an audio signal including a plurality of channels, applying an audio signal having a channel, from among the plurality of channels, giving a sense of elevation to a filter to generate a plurality of virtual audio signals to be respectively output to a plurality of speakers, applying a combination gain value and a delay value to the plurality of virtual audio signals so that the plurality of virtual audio signals respectively output through the plurality of speakers form a sound field having a plane wave, and respectively outputting the plurality of virtual audio signals, to which the combination gain value and the delay value are applied, through the plurality of speakers. The filter processes the audio signal to have a sense of elevation.
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10.发明申请公开(公告)号：US20170188169A1
公开(公告)日：2017-06-29
申请号：US15300077
申请日：2015-03-30
发明人： Sang-bae CHON , Sun-min KIM
IPC分类号： H04S7/00 , G10L19/008
CPC分类号： H04S7/30 , G10L19/008 , H04S2400/03
摘要： 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 means 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.
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