公开(公告)号：US20160232902A1

公开(公告)日：2016-08-11

申请号：US15131623

申请日：2016-04-18

Applicant: Electronics and Telecommunications Research Institute

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: G10L19/008 ,  H04S7/00 ,  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.

公开(公告)号：US20240233746A9

公开(公告)日：2024-07-11

申请号：US18489764

申请日：2023-10-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

公开(公告)号：US20220210596A1

公开(公告)日：2022-06-30

申请号：US17526284

申请日：2021-11-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

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.

公开(公告)号：US20190289418A1

公开(公告)日：2019-09-19

申请号：US16207252

申请日：2018-12-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dae Young JANG

IPC: H04S7/00 ,  H04S3/00

Abstract: Provided is a method of reproducing an audio signal, the method including determining, when a user moves from a position to another position in a virtual space, a relative position between a sound source and the other position of the user using metadata based on a movement of the user and correcting a first audio signal obtained from the sound source at the position of the user to a second audio signal obtained from the sound source at the other position of the user based on the relative position.

公开(公告)号：US20190289413A1

公开(公告)日：2019-09-19

申请号：US16357180

申请日：2019-03-18

Applicant: Electronics And Telecommunications Research Institute

Inventor： Seung Kwon BEACK ,  Jeong Il SEO ,  Jong Mo SUNG ,  Tae Jin LEE ,  Dae Young JANG ,  Jin Woong KIM

IPC: H04S3/00 ,  G10L19/008 ,  G10L19/20

Abstract: Disclosed are a multi-channel audio signal processing method and a multi-channel audio signal processing apparatus. The multi-channel audio signal processing method may generate N channel output signals from N/2 channel downmix signals based on an N−N/2−N structure.

公开(公告)号：US20190253823A1

公开(公告)日：2019-08-15

申请号：US15984490

申请日：2018-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dae Young JANG ,  Yong Ju LEE ,  Jae-hyoun YOO ,  Sang Won SUH

IPC: H04S7/00

CPC classification number: H04S7/30 ,  H04S2400/01

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.

公开(公告)号：US20190035412A1

公开(公告)日：2019-01-31

申请号：US16081169

申请日：2017-03-21

Applicant: Electronics And Telecommunications Research Institute

Inventor： Seung Kwon BEACK ,  Tae Jin LEE ,  Jongmo SUNG ,  Mi Suk LEE ,  Dae Young JANG ,  Jin Soo CHOI

IPC: G10L19/022 ,  G10L19/02 ,  G10L19/032 ,  G10L19/04

Abstract: Provided is an apparatus and method for encoding/decoding audio based on a block. A method of encoding an audio signal may include dividing each of frame of input signal that constitute an audio signal into a plurality of subframes; transforming the subframes to a frequency domain; determining a two-dimensional (2D) intra block using the subframes transformed to the frequency domain; and encoding the 2D intra block. The 2D intra block may be a block that two-dimensionally displays frequency coefficients of the subframes transformed to the frequency domain using a time and a frequency.

公开(公告)号：US20180035230A1

公开(公告)日：2018-02-01

申请号：US15551734

申请日：2016-02-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon BEACK ,  Jeong Il SEO ,  Jong Mo SUNG ,  Tae Jin LEE ,  Dae Young JANG ,  Jin Soo CHOI

IPC: H04S1/00 ,  H04S5/00 ,  G10L19/008

CPC classification number: H04S1/007 ,  G10L19/008 ,  H04S3/008 ,  H04S3/02 ,  H04S5/00 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/07 ,  H04S2420/03

Abstract: Provided are an encoding method of a multichannel signal, an encoding apparatus to perform the encoding method, a multichannel signal processing method, and a decoding apparatus to perform the decoding method. The decoding method may include identifying an N/2-channel downmix signal derived from an N-channel input signal; and generating an N-channel output signal from the identified N/2-channel downmix signal using a plurality of one-to-two (OTT) boxes. If a low frequency effect (LFE) channel is absent in the output signal, the number of OTT boxes may be equal to N/2 where N/2 denotes the number of channels of the downmix signal.

公开(公告)号：US20170345435A1

公开(公告)日：2017-11-30

申请号：US15618689

申请日：2017-06-09

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: G10L19/12 ,  G10L19/008 ,  G10L19/20 ,  G10L19/22

CPC classification number: G10L19/12 ,  G10L19/008 ,  G10L19/02 ,  G10L19/20 ,  G10L19/22 ,  G11C2207/16

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 signal of the first conversion encoder and an output signal of the LPC encoder.