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公开(公告)号：US12212949B2
公开(公告)日：2025-01-28
申请号：US18090090
申请日：2022-12-28
Inventor： Jae-hyoun Yoo , Kyeongok Kang , Yong Ju Lee , Dae Young Jang
IPC: H04S3/00
Abstract: Provided is a method of reproducing an ambisonic signal in a virtual reality (VR) space. The ambisonic signal reproduction method may include receiving an ambisonic signal, mapping the ambisonic signal to channels localized on a sphere according to an equivalent spatial domain (ESD) standard corresponding to an order of the ambisonic signal, and performing a sound field reproduction in the VR space based on the channels localized on the sphere.
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公开(公告)号：US12205599B2
公开(公告)日：2025-01-21
申请号：US18212364
申请日：2023-06-21
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry-Academic Collaboration Foundation
Inventor： Tae Jin Lee , Seung-Kwon Baek , Min Je Kim , Dae Young Jang , Jeongil Seo , Kyeongok Kang , Jin-Woo Hong , Hochong Park , Young-Cheol Park
Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US11882425B2
公开(公告)日：2024-01-23
申请号：US17681429
申请日：2022-02-25
Inventor： Dae Young Jang , Kyeongok Kang , Jae-hyoun Yoo , Yong Ju Lee , Tae Jin Lee
CPC classification number: H04S7/303 , H04S3/008 , H04S2400/01 , H04S2400/03 , H04S2400/13
Abstract: A method and apparatus for rendering a volume sound source are disclosed. The method of rendering a volume sound source may include identifying information about a listener and information about the volume sound source, determining a corresponding area in which a source element is disposed in the volume sound source in consideration of the information about the listener, determining an angle between the listener and the corresponding area based on the information about the listener and the information about the volume sound source, determining a number of source elements disposed in the corresponding area according to the angle, determining a position and a gain of the source element using i) the number of source elements and ii) a distance between the listener and the volume sound source, and rendering the volume sound source according to the position and the gain of the source element.
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公开(公告)号：US11705137B2
公开(公告)日：2023-07-18
申请号：US16925946
申请日：2020-07-10
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry-Academic Collaboration Foundation
Inventor： Tae Jin Lee , Seung-Kwon Baek , Min Je Kim , Dae Young Jang , Jeongil Seo , Kyeongok Kang , Jin-Woo Hong , Hochong Park , Young-Cheol Park
Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US11062718B2
公开(公告)日：2021-07-13
申请号：US15714273
申请日：2017-09-25
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seung Kwon Beack , Tae Jin Lee , Min Je Kim , Dae Young Jang , Kyeongok Kang , Jin Woo Hong , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/16 , G10L19/20 , G10L19/02
Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a different coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the different coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.
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Patent Agency Ranking
公开(公告)号：US10796707B2
公开(公告)日：2020-10-06
申请号：US16199987
申请日：2018-11-26
Inventor： Yong Ju Lee , Tae Jin Lee , Jae-Hyoun Yoo , Kyeongok Kang , Jin Woong Kim , Chieteuk Ahn
IPC: H04L12/701 , G10L19/16 , H04N7/52 , H04N21/2343 , H04N21/235 , H04N21/236 , H04N21/434 , H04N21/435 , H04N21/439 , H04N21/6547 , H04N21/81 , G10L19/008 , G10L19/26 , H04H20/95
Abstract: The present invention relates to a system for transmitting and receiving audio, particularly, to a method and apparatus for transmitting and receiving of object-based audio contents, which packetizes audio objects having the same characteristic.To achieve the above, the present invention includes filtering a plurality of ESs according to common information, adding a packet header to the respective filtered ESs and generate ES packets, aggregating all the generated ES packets and then adding a multi-object packet header to the aggregated ES packets to generate an object packet, and multiplexing the generated object packet, packetizing the multiplexed object packet according to a transmitting media and transmitting the packetized object packet.
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公开(公告)号：US10692508B2
公开(公告)日：2020-06-23
申请号：US16224820
申请日：2018-12-19
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
Inventor： Taegyu Lee , Hyunoh Oh , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang , Youngcheol Park , Daehee Youn
IPC: G06F17/00 , G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor.To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
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公开(公告)号：US10204630B2
公开(公告)日：2019-02-12
申请号：US15031274
申请日：2014-10-22
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
Inventor： Taegyu Lee , Hyunoh Oh , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang , Youngcheol Park , Daehee Youn
IPC: G06F17/00 , G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor.To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
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9.发明授权Method and apparatus for transmitting and receiving of the object-based audio contents 有权用于发送和接收基于对象的音频内容的方法和装置公开(公告)号：US09525612B2
公开(公告)日：2016-12-20
申请号：US13682990
申请日：2012-11-21
Inventor： Yong Ju Lee , Tae Jin Lee , Jae-Hyoun Yoo , Kyeongok Kang , Jin Woong Kim , Chieteuk Ahn
IPC: H04L12/28 , H04L12/701 , G10L19/16 , H04N7/52 , H04N21/2343 , H04N21/235 , H04N21/236 , H04N21/434 , H04N21/435 , H04N21/439 , H04N21/6547 , H04N21/81 , G10L19/008
CPC classification number: G10L19/167 , G10L19/008 , G10L19/26 , H04H20/95 , H04H2201/11 , H04L45/00 , H04N7/52 , H04N21/234318 , H04N21/235 , H04N21/236 , H04N21/434 , H04N21/4343 , H04N21/435 , H04N21/4398 , H04N21/6547 , H04N21/8106
Abstract: The present invention relates to a system for transmitting and receiving audio, particularly, to a method and apparatus for transmitting and receiving of object-based audio contents, which packetizes audio objects having the same characteristic. To achieve the above, the present invention includes filtering a plurality of ESs according to common information, adding a packet header to the respective filtered ESs and generate ES packets, aggregating all the generated ES packets and then adding a multi-object packet header to the aggregated ES packets to generate an object packet, and multiplexing the generated object packet, packetizing the multiplexed object packet according to a transmitting media and transmitting the packetized object packet.
Abstract translation: 本发明涉及用于发送和接收音频的系统，特别涉及用于发送和接收基于对象的音频内容的方法和装置，该方法和装置对具有相同特性的音频对象进行打包。 为了实现上述目的，本发明包括根据公共信息对多个ES进行过滤，将分组报头添加到相应的经过滤的ES并生成ES分组，聚集所有生成的ES分组，然后将多对象分组报头添加到 聚合ES分组以生成对象分组，并且复用所生成的对象分组，根据发送媒体对多路复用的目标分组进行分组，并发送分组化对象分组。
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公开(公告)号：US12133062B2
公开(公告)日：2024-10-29
申请号：US17713059
申请日：2022-04-04
Inventor： Yong Ju Lee , Jae-Hyoun Yoo , Dae Young Jang , Kyeongok Kang , Tae Jin Lee
CPC classification number: H04S7/302 , H04S5/005 , H04S2400/11 , H04S2420/01
Abstract: A method and apparatus for rendering an object-based audio signal considering an obstacle are disclosed. A method for rendering an object-based audio signal according to an example embodiment, the method includes identifying an object-based input signal and metadata for the input signal, generating a binaural filter based on the metadata using a binaural room impulse response (BRIR), determining, based on the metadata, whether an obstacle is present between a listener and an object, modifying the generated binaural filter when it is determined that the obstacle is present, and generating a rendered output signal by convolving the modified binaural filter and the input signal.
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