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公开(公告)号：US10271137B1
公开(公告)日：2019-04-23
申请号：US16018359
申请日：2018-06-26
Inventor： Young Ho Jeong , Sang Won Suh , Jae-hyoun Yoo , Tae Jin Lee , Woo-taek Lim , Hui Yong Kim
Abstract: A method of detecting a sound event includes receiving sound signals using one or more directional microphones, extracting a time interval of each of the sound signals, extracting time information and an azimuth of a sound event included in the sound signals during the extracted time interval, mixing the sound signals received from the directional microphones using the extracted time interval, and determining a direction of the sound event generated at a specific time from a mixed sound signal obtained through the mixing using the extracted time information and azimuth of the sound event.
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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：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：US10405122B1
公开(公告)日：2019-09-03
申请号：US15984490
申请日：2018-05-21
Inventor： Dae Young Jang , Yong Ju Lee , Jae-hyoun Yoo , Sang Won Suh
IPC: H04S7/00
Abstract: Provided is a stereophonic sound reproducing apparatus that applies a multi-rendering scheme to a channel sound signal and an object sound signal to enhance a stereophonic effect. A stereophonic sound reproducing method performed by the stereophonic sound reproducing apparatus may include receiving a channel sound signal based on a channel, an object sound signal based on an object, and metadata, and reproducing the channel sound signal based on a preset rendering scheme and reproducing, based on the metadata including a rendering scheme determined using the object sound signal, each object sound signal using the determined rendering scheme.
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公开(公告)号：US11778376B2
公开(公告)日：2023-10-03
申请号：US17582209
申请日：2022-01-24
Inventor： Yong Ju Lee , Jae-hyoun Yoo , Dae Young Jang , Kyeongok Kang , Tae Jin Lee
Abstract: An apparatus and method for pitch-shifting an audio signal with low complexity are disclosed. The method includes identifying a distance between an audio object included in the audio signal and a listener, checking whether the distance between the audio object and the listener decreases, and performing stepwise stretching pitch-shifting of repeatedly using at least one of frequency components of the audio signal when the distance between the audio object and the listener decreases.
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Patent Agency Ranking
公开(公告)号：US11570571B2
公开(公告)日：2023-01-31
申请号：US17199757
申请日：2021-03-12
Inventor： Yong Ju Lee , Jae-hyoun Yoo , Mi Suk Lee , Kyeongok Kang , Dae Young Jang
IPC: H04S7/00 , G10L19/008 , H04S3/00
Abstract: A method and apparatus for performing binaural rendering of an audio signal are provided. The method includes identifying an input signal that is based on an object, and metadata that includes distance information indicating a distance to the object, generating a binaural filter that is based on the metadata, using a binaural room impulse response, obtaining a binaural filter to which a low-pass filter (LPF) is applied, using a frequency response control that is based on the distance information, and generating a binaural-rendered output signal by performing a convolution of the input signal and the binaural filter to which the LPF is applied.
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公开(公告)号：US11330387B2
公开(公告)日：2022-05-10
申请号：US16647458
申请日：2019-10-01
Applicant: Electronics and Telecommunications Research Institute , CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
Inventor： Dae Young Jang , Jae-hyoun Yoo , Yong Ju Lee , Tae Jin Lee , Sang Wook Kim
Abstract: An audio signal controlling method includes identifying whether an audio zooming effect is used for at least one audio object present in a virtual reality (VR) through an audio zooming effect field included in metadata, and controlling an audio signal corresponding to the audio object based on a preset method when the audio zooming effect is identified as being used.
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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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