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公开(公告)号：US20240357306A1
公开(公告)日：2024-10-24
申请号：US18426984
申请日：2024-01-30
Inventor： Young Ho JEONG , Kyeongok KANG , Soo Young PARK , Jae-hyoun YOO , Yong Ju LEE , Tae Jin LEE , Dae Young JANG
IPC: H04S7/00
CPC classification number: H04S7/303 , H04S2400/11
Abstract: A bitstream reconstruction method and apparatus are provided. The method includes constructing an initial bitstream by rendering sound source information and geometry information within a reference radius from an initial location of a user accessing a virtual space into spatial audio, collecting location information according to a movement of the user within the virtual space, and reconstructing, based on a relationship between the reference radius and a movement radius identified according to the collected location information, the initial bitstream constructed by corresponding to the initial location of the user.
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2.发明公开公开(公告)号：US20240136993A1
公开(公告)日：2024-04-25
申请号：US18480259
申请日：2023-10-02
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Soo Young PARK , Young Ho JEONG , Kyeongok KANG , Tae Jin LEE
IPC: H03G7/00
CPC classification number: H03G7/007
Abstract: A rendering method of an object-based audio signal and an apparatus for performing the same are provided. The rendering method of an object-based audio signal includes obtaining a rendered audio signal, performing clipping prevention on the rendered audio signal using a first limiter, mixing a signal output by the first limiter using a mixer, and performing clipping prevention on the mixed signal using a second limiter.
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公开(公告)号：US20240129682A1
公开(公告)日：2024-04-18
申请号：US18484117
申请日：2023-10-10
Inventor： Yong Ju LEE , Jae-hyoun YOO , Dae Young JANG , Soo Young PARK , Young Ho JEONG , Kyeongok KANG , Tae Jin LEE
IPC: H04S7/00
CPC classification number: H04S7/30 , H04S2400/11
Abstract: A method of rendering object-based audio and an electronic device performing the method are provided. The method includes identifying a bitstream, determining a reference distance of an object sound source based on the bitstream, determining a minimum distance for applying distance-dependent attenuation, based on the reference distance, and determining a gain of object-based audio included in the bitstream based on the reference distance and the minimum distance.
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公开(公告)号：US20220059105A1
公开(公告)日：2022-02-24
申请号：US17517630
申请日：2021-11-02
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：US20190385621A1
公开(公告)日：2019-12-19
申请号：US16557238
申请日：2019-08-30
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 , G10L19/12 , G10L19/20 , G10L19/04
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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Patent Agency Ranking
6.发明申请UNIFIED SPEECH/AUDIO CODEC (USAC) PROCESSING WINDOWS SEQUENCE BASED MODE SWITCHING 审中-公开统一语音/音频编解码器（USAC）处理窗口序列模式切换公开(公告)号：US20150134328A1
公开(公告)日：2015-05-14
申请号：US14588638
申请日：2015-01-02
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: G10L19/04
CPC classification number: 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.
Abstract translation: 提供了可以基于模式切换处理窗口序列的统一语音和音频编解码器（USAC）。 USAC可以通过在发生模式切换时基于折叠点在帧之间重叠来执行编码或解码。 USAC可以针对每种情况处理不同的窗口序列以执行编码或解码，从而可以提高编码效率。
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公开(公告)号：US20240233746A9
公开(公告)日：2024-07-11
申请号：US18489764
申请日：2023-10-18
Inventor： Dae Young JANG , Kyeongok KANG , Jae-hyoun YOO , Yong Ju LEE
IPC: G10L25/18 , H04B17/318
CPC classification number: G10L25/18 , H04B17/318
Abstract: An audio rendering method and an electronic device performing the same are disclosed. The disclosed audio rendering method includes determining an air absorption attenuation amount of an audio signal based on a recording distance included in metadata of the audio signal and a source distance between a sound source of the audio signal and a listener; and rendering the audio signal based on the air absorption attenuation amount.
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公开(公告)号：US20220210596A1
公开(公告)日：2022-06-30
申请号：US17526284
申请日：2021-11-15
Inventor： Jae-hyoun YOO , Yong Ju LEE , Dae Young JANG , Kyeongok KANG
IPC: H04S7/00
Abstract: Disclosed is a method and apparatus for processing an audio signal based on an extent sound source. The method includes identifying information on a reference area of the extent sound source and information on a position of a listener, determining a position of a virtual sound source within the extent sound source based on a relationship between the position of the listener and the reference area of the extent sound source, and rendering an audio signal based on the determined position of the virtual sound source, wherein the reference area may be determined based on a position and a size of the extent sound source.
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公开(公告)号：US20220005486A1
公开(公告)日：2022-01-06
申请号：US17373243
申请日：2021-07-12
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
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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10.发明申请公开(公告)号：US20190096417A1
公开(公告)日：2019-03-28
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: G10L19/16 , H04L12/701 , H04N21/434 , H04H20/95 , G10L19/26 , H04N21/235 , H04N21/6547 , G10L19/008 , H04N21/81 , H04N7/52 , H04N21/439 , H04N21/435 , H04N21/2343 , H04N21/236
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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