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公开(公告)号：US12225370B2
公开(公告)日：2025-02-11
申请号：US18096439
申请日：2023-01-12
Inventor： Dae Young Jang , Kyeongok Kang , Jae-hyoun Yoo , Yong Ju Lee
IPC: H04S7/00 , G10L19/008
Abstract: Disclosed is an apparatus for immersive spatial audio modeling and rendering for effectively transmitting and playing immersive spatial audio content. The apparatus for immersive spatial audio modeling and rendering disclosed herein may model a spatial audio scene, generate and transmit parameters necessary for spatial audio rendering, and generate various spatial audio effects using the spatial audio parameters, to provide an immersive three-dimensional (3D) audio source coinciding with visual experience in a virtual reality space in response to free changes in the position and direction of a remote user in the space.
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公开(公告)号：US11895480B2
公开(公告)日：2024-02-06
申请号：US17590288
申请日：2022-02-01
Inventor： Dae Young Jang , Kyeongok Kang , Jae-hyoun Yoo , Yong Ju Lee
IPC: H04S7/00
CPC classification number: H04S7/302 , H04S7/307 , H04S2400/01 , H04S2400/11 , H04S2420/01
Abstract: A method and system for processing an obstacle effect in a virtual acoustic space are disclosed. The method includes receiving a parameter for an obstacle candidate plane extracted from spatial information, determining, in response to the parameter, whether the obstacle candidate plane is an obstacle related to a path between a position of a virtual sound source and a position of a user, and applying a sound effect according to the obstacle to an audio signal when the obstacle candidate plane is the obstacle. The obstacle candidate plane is a plane of an object that may become the obstacle in a sound propagation path between the virtual sound source and the user.
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公开(公告)号：US20220337968A1
公开(公告)日：2022-10-20
申请号：US17590288
申请日：2022-02-01
Inventor： Dae Young Jang , Kyeongok Kang , Jae-hyoun Yoo , Yong Ju Lee
IPC: H04S7/00
Abstract: A method and system for processing an obstacle effect in a virtual acoustic space are disclosed. The method includes receiving a parameter for an obstacle candidate plane extracted from spatial information, determining, in response to the parameter, whether the obstacle candidate plane is an obstacle related to a path between a position of a virtual sound source and a position of a user, and applying a sound effect according to the obstacle to an audio signal when the obstacle candidate plane is the obstacle. The obstacle candidate plane is a plane of an object that may become the obstacle in a sound propagation path between the virtual sound source and the user.
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公开(公告)号：US11456002B2
公开(公告)日：2022-09-27
申请号：US17018295
申请日：2020-09-11
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 are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output.
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公开(公告)号：US11037578B2
公开(公告)日：2021-06-15
申请号：US16126964
申请日：2018-09-10
Inventor： Seung Kwon Beack , Tae Jin Lee , Jong Mo Sung , Jeong Il Seo , Kyeong Ok Kang , Dae Young Jang , Jin Woong Kim
IPC: H04S3/00 , G10L19/008
Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.
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Patent Agency Ranking
公开(公告)号：US10687163B1
公开(公告)日：2020-06-16
申请号：US16539091
申请日：2019-08-13
Inventor： Jae-hyoun Yoo , Yong Ju Lee , Tae Jin Lee , Dae Young Jang
Abstract: Disclosed is an audio signal processing method including identifying a sound source provided inside a preset reference distance and a sound source provided outside the reference distance to represent a sound field based on virtual reality (VR) content that is represented in a predetermined virtual space in which a user is located in a VR environment, processing a sound field using three-dimensional (3D) ambisonics based on height information and horizontal information of the sound source provided inside the reference distance, and processing a sound field using two-dimensional (2D) ambisonics based on horizontal information of the sound source provided outside the reference distance.
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公开(公告)号：US20180102131A1
公开(公告)日：2018-04-12
申请号：US15838031
申请日：2017-12-11
Inventor： Yong Ju Lee , Jeong Il Seo , Jae Hyoun Yoo , Seung Kwon Beack , Jong Mo Sung , Tae Jin Lee , Kyeong Ok Kang , Jin Woong Kim , Tae Jin Park , Dae Young Jang , Keun Woo Choi
IPC: G10L19/008 , H04S7/00
CPC classification number: H04S7/00 , G10L19/008 , H04S7/30 , H04S2400/01 , H04S2400/03
Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
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公开(公告)号：US09899031B1
公开(公告)日：2018-02-20
申请号：US15674779
申请日：2017-08-11
Inventor： Young Ho Jeong , Dae Young Jang , Tae Jin Lee , Jin Soo Choi
IPC: G10L19/018 , G10L25/21 , G10L19/008
CPC classification number: G10L19/018 , G10L19/008 , G10L25/21
Abstract: Provided is a tag insertion method performed by an apparatus for inserting a tag into a stereo audio signal, the method including receiving an original stereo audio signal, analyzing an energy distribution of the original stereo audio signal based on an azimuth, determining valid azimuths for control information and for a plurality of pieces of tag information based on the energy distribution, wherein the control information is used to control tag information, modulating the plurality of pieces of tag information and the control information generated based on the valid azimuths, generating a left signal and a right signal based on the modulated control information and the plurality of pieces of modulated tag information, and generating a multi-tagged stereo audio signal by mixing the generated left signal and the generated right signal with the original stereo audio signal.
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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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公开(公告)号：US11887612B2
公开(公告)日：2024-01-30
申请号：US17895233
申请日：2022-08-25
Inventor： Seung Kwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jin Woo Hong , Jeongil Seo , Chieteuk Ahn , Hochong Park , Young-Cheol Park
IPC: G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26
CPC classification number: G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26
Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
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