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公开(公告)号：US20230328472A1
公开(公告)日：2023-10-12
申请号：US18120193
申请日：2023-03-10
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Kyeongok KANG , Soo Young PARK , Tae Jin LEE , Young Ho JEONG
IPC: H04S7/00
CPC classification number: H04S7/302 , H04S2420/01 , H04S2420/11
Abstract: A method of rendering object audio and electronic device for performing the method are provided. The method includes identifying object audio and metadata including a reference distance of the object audio and an audio source distance between the object audio and a listener, identifying a maximum distance of the object audio determined based on the reference distance, when the audio source distance is less than or equal to the maximum distance, determining a gain of the object audio based on the audio source distance and the reference distance, and rendering the object audio according to the gain of the object audio.
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公开(公告)号：US20230224665A1
公开(公告)日：2023-07-13
申请号：US18091966
申请日：2022-12-30
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Kyeongok KANG , Tae Jin LEE
IPC: H04S7/00
CPC classification number: H04S7/303 , H04S2400/11 , H04S7/305
Abstract: A method and apparatus for processing acoustic spatial information are provided. The method of processing acoustic spatial information includes identifying at least one mesh disposed in an acoustic space, setting a minimum cuboid surrounding the mesh as a bounding box, and generating acoustic spatial information including information about the bounding box.
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公开(公告)号：US20230224659A1
公开(公告)日：2023-07-13
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
CPC classification number: H04S3/002 , H04S2420/11
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：US20220406320A1
公开(公告)日：2022-12-22
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 , G10L19/22 , G10L19/125 , 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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公开(公告)号：US20220360932A1
公开(公告)日：2022-11-10
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
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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Patent Agency Ranking
36.发明申请公开(公告)号：US20220217492A1
公开(公告)日：2022-07-07
申请号：US17478748
申请日：2021-09-17
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Kyeongok KANG
IPC: H04S7/00
Abstract: A method of applying a Doppler effect to an object audio signal and a rendering apparatus performing the method are disclosed. The method includes determining a relative velocity between an audio object and an observer based on a velocity and a direction of the audio object and a position of the observer, determining whether to apply the Doppler effect based on the relative velocity, applying the Doppler effect based on the relative velocity to the object audio signal in response to a determination to apply the Doppler effect, and rendering an object audio signal to which the Doppler effect is applied.
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37.发明申请公开(公告)号：US20200152211A1
公开(公告)日：2020-05-14
申请号：US16747533
申请日：2020-01-21
Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Inventor： Taegyu LEE , Hyunoh OH , Youngcheol PARK , Daehee YOUN , Jeongil SEO , Yongju LEE , Seungkwon BEACK , Kyeongok KANG , Daeyoung JANG
IPC: G10L19/008 , H04S3/00 , H04R5/033
Abstract: The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.
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公开(公告)号：US20190122676A1
公开(公告)日：2019-04-25
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: G10L19/008 , H04S3/00 , H04R5/033
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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39.发明申请公开(公告)号：US20180130478A1
公开(公告)日：2018-05-10
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: G10L19/02
CPC classification number: G10L19/0212
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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公开(公告)号：US20250118310A1
公开(公告)日：2025-04-10
申请号：US18982631
申请日：2024-12-16
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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