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公开(公告)号:US11810583B2
公开(公告)日:2023-11-07
申请号:US17866106
申请日:2022-07-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sun-min Kim , Sang-bae Chon
IPC: G10L19/008 , G10L19/002 , G10L19/16 , G10L19/00 , H04S3/00
CPC classification number: G10L19/008 , G10L19/00 , G10L19/002 , G10L19/16 , H04S3/00 , H04S2400/03 , H04S2400/05
Abstract: A method of processing an audio signal includes receiving an audio bitstream encoded via MPEG Surround 212 (MPS212); generating an internal channel (IC) signal for a single channel pair element (CPE), based on the received audio bitstream, equalization (EQ) values for MPS212 output channels defined in a format converter, and gain values for the MPS212 output channels; and generating stereo output channels, based on the generated IC signal.
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2.
公开(公告)号:US20220322026A1
公开(公告)日:2022-10-06
申请号:US17841380
申请日:2022-06-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sang-bae Chon , Sun-min Kim , Hyun Jo
IPC: H04S7/00 , H04S3/00 , G10L19/008
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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3.
公开(公告)号:US10687162B2
公开(公告)日:2020-06-16
申请号:US16504896
申请日:2019-07-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sang-bae Chon , Sun-min Kim
IPC: H04S7/00 , G10L19/008
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.
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公开(公告)号:US10349197B2
公开(公告)日:2019-07-09
申请号:US15503521
申请日:2015-08-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyun Jo , Sun-min Kim , Jae-ha Park , Sang-mo Son
IPC: H04S5/00 , H04S7/00 , G10L19/008
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.
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公开(公告)号:US10341800B2
公开(公告)日:2019-07-02
申请号:US16044587
申请日:2018-07-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sang-bae Chon , Sun-min Kim , Jae-ha Park , Sang-mo Son , Hyun Jo , Hyun-joo Chung
Abstract: An audio providing apparatus and method are provided. The audio providing apparatus includes: an object renderer configured to render an object audio signal based on geometric information regarding the object audio signal; a channel renderer configured to render an audio signal having a first channel number into an audio signal having a second channel number; and a mixer configured to mix the rendered object audio signal with the audio signal having the second channel number.
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公开(公告)号:US10187737B2
公开(公告)日:2019-01-22
申请号:US15543791
申请日:2015-01-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyun-joo Chung , Sun-min Kim , Chang-yeong Kim
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.
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公开(公告)号:US10117039B2
公开(公告)日:2018-10-30
申请号:US13853773
申请日:2013-03-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sang-bae Chon , Sun-min Kim , Jeong-su Kim
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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公开(公告)号:US10091600B2
公开(公告)日:2018-10-02
申请号:US15029143
申请日:2014-10-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sang-bae Chon , Sun-min Kim , Hyun Jo
Abstract: 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:US09800987B2
公开(公告)日:2017-10-24
申请号:US14752377
申请日:2015-06-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Han-gil Moon , Sun-min Kim , In-gyu Chun
CPC classification number: H04S7/30 , H04S1/00 , H04S3/008 , H04S2400/01 , H04S2420/01 , H04S2420/03 , H04S2420/07
Abstract: A binaural decoder for an MPEG surround stream, which decodes an MPEG surround stream into a stereo 3D signal, and a decoding method thereof. The method includes dividing a compressed audio stream and head related transfer function (HRTF) data into subbands, selecting predetermined subbands of the HRTF data divided into subbands and filtering the HRTF data to obtain the selected subbands, decoding the audio stream divided into subbands into a stream of multi-channel audio data with respect to subbands according to spatial additional information, and binaural-synthesizing the HRTF data of the selected subbands with the multi-channel audio data of corresponding subbands.
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公开(公告)号:US09749767B2
公开(公告)日:2017-08-29
申请号:US14835303
申请日:2015-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sun-min Kim
CPC classification number: H04S5/00 , H04R5/00 , H04S1/002 , H04S2400/11 , H04S2400/15
Abstract: Method and apparatus reproduce a stereophonic sound. The method includes obtaining sound depth information which denotes a distance between at least one object within a sound signal and a reference position, and providing sound perspective to the sound object output from a speaker, based on the sound depth information.
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