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公开(公告)号：US20240340609A1
公开(公告)日：2024-10-10
申请号：US18439910
申请日：2024-02-13
Inventor： Jung-Woo CHOI , Jae-hyoun YOO , Kyeongok KANG , Soo Young PARK , Yong Ju LEE , Dae Young JANG , Young Ho JEONG , Seongrae KIM
IPC: H04S7/00
Abstract: A method and apparatus for generating late reverberation are provided. The method includes generating a reverberation parameter required to generate late reverberation based on an early room impulse response, outputting late reverberation based on the reverberation parameter, and outputting a room impulse response based on the early room impulse response and the late reverberation.
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公开(公告)号：US20230308828A1
公开(公告)日：2023-09-28
申请号：US18191695
申请日：2023-03-28
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Kyeongok KANG , Tae Jin LEE
IPC: H04S7/00
CPC classification number: H04S7/305 , H04S7/303 , H04S2400/11
Abstract: An audio signal processing apparatus and an audio signal processing method are disclosed. The audio signal processing method performed by the audio signal processing apparatus includes determining whether a line of sight between a render item (RI) corresponding to an audio element and a listener is visible, based on a bitstream, in response to a case where the line of sight is invisible, generating an audio signal by rendering a diffraction-type RI corresponding to the RI, and outputting the audio signal.
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43.发明公开公开(公告)号：US20230224669A1
公开(公告)日：2023-07-13
申请号：US18090070
申请日：2022-12-28
Inventor： Jae-hyoun YOO , Kyeongok KANG , Yong Ju LEE , Dae Young JANG
CPC classification number: H04S7/305 , G06T7/73 , H04S2400/11
Abstract: Provided is a method of processing mesh data for processing an audio signal for audio rendering in a virtual reality (VR) space. The method includes receiving mesh data defining geometry of a certain space and the mesh data includes data regarding three-dimensional (3D) coordinates of points for configuring spatial information of the certain space and processing the mesh data by identifying outermost points among the points.
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公开(公告)号：US20230224668A1
公开(公告)日：2023-07-13
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
CPC classification number: H04S7/304 , H04S7/305 , G10L19/008 , H04S2420/01 , H04S2400/13
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：US20230224662A1
公开(公告)日：2023-07-13
申请号：US18146685
申请日：2022-12-27
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Kyeongok KANG , Tae Jin LEE
IPC: H04S7/00
CPC classification number: H04S7/302
Abstract: Provided is a method and apparatus for generating an impulse response using ray tracing. The method of generating an impulse response may include calculating a number of rays reaching a receiver from a transmitter based on acoustic geometry information including a position of the transmitter and a position of the receiver disposed in a sound space, a maximum ray length or a sound space volume, and a radius of the receiver, tracing the rays using a path of the calculated rays, and generating an impulse response based on the traced rays.
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Patent Agency Ranking
公开(公告)号：US20230224661A1
公开(公告)日：2023-07-13
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：US20230112342A1
公开(公告)日：2023-04-13
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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公开(公告)号：US20200349958A1
公开(公告)日：2020-11-05
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
IPC: G10L19/008 , G10L19/02 , G10L19/04 , G10L19/20 , G10L19/12
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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49.发明申请公开(公告)号：US20200243099A1
公开(公告)日：2020-07-30
申请号：US16846272
申请日：2020-04-10
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 , G10L19/26 , G10L19/125 , G10L19/22
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：US20200227060A1
公开(公告)日：2020-07-16
申请号：US16835728
申请日：2020-03-31
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon BEACK , Tae Jin LEE , Min Je KIM , Kyeongok KANG , Dae Young JANG , Jeongil SEO , Jin Woo HONG , Chieteuk AHN , Ho Chong PARK , Young-cheol PARK
IPC: G10L19/22 , G10L19/022 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
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