公开(公告)号：US11871204B2

公开(公告)日：2024-01-09

申请号：US17877696

申请日：2022-07-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Jeong Il Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Jae Hyoun Yoo

IPC: H04S3/00 ,  G10L19/008

CPC classification number: H04S3/008 ,  G10L19/008 ,  H04S2400/01

Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

公开(公告)号：US11671780B2

公开(公告)日：2023-06-06

申请号：US17156748

申请日：2021-01-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Hyoun Yoo ,  Tae Jin Lee ,  Seok Jin Lee

IPC: H04S3/02 ,  H04S3/00 ,  G10L19/16 ,  G10L19/008

CPC classification number: H04S3/02 ,  G10L19/173 ,  H04S3/008 ,  G10L19/008 ,  H04S2400/01 ,  H04S2400/03

Abstract: An audio metadata providing apparatus and method and a multichannel audio data playback apparatus and method to support a dynamic format conversion are provided. Dynamic format conversion information may include information about a plurality of format conversion schemes that are used to convert a first format set by a writer of multichannel audio data into a second format that is based on a playback environment of the multichannel audio data and that are set for each of playback periods of the multichannel audio data. The audio metadata providing apparatus may provide audio metadata including the dynamic format conversion information. The multichannel audio data playback apparatus may identify the dynamic format conversion information from the audio metadata, may convert the first format of the multichannel audio data into the second format based on the identified dynamic format conversion information, and may play back the multichannel audio data with the second format.

公开(公告)号：US10950248B2

公开(公告)日：2021-03-16

申请号：US16841428

申请日：2020-04-06

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

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：US10282160B2

公开(公告)日：2019-05-07

申请号：US15803464

申请日：2017-11-03

Applicant: Electronics and Telecommunications Research Institute ,  NIPPON HOSO KYOKAI

Inventor： Jae Hyoun Yoo ,  Tae Jin Lee ,  Kyeong Ok Kang ,  Kaoru Watanabe ,  Satoshi Oode ,  Ikuko Sawaya

IPC: G06F3/16 ,  H04S3/00 ,  G10L19/16 ,  G10L19/008

Abstract: An apparatus and method for generating audio data and an apparatus and method for playing audio data may be disclosed, in which the apparatus for playing the audio data may extract a descriptor related to a multichannel audio signal from a bitstream generated by the apparatus for generating the audio data, and play the multichannel audio signal, based on the extracted descriptor, and the descriptor may include information on an audio signal included in the multichannel audio signal.

公开(公告)号：US10199045B2

公开(公告)日：2019-02-05

申请号：US15838031

申请日：2017-12-11

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

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：US09842597B2

公开(公告)日：2017-12-12

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：US09836269B2

公开(公告)日：2017-12-05

申请号：US14434484

申请日：2013-10-11

Applicant: Electronics and Telecommunications Research Institute ,  NIPPON HOSO KYOKAI

Inventor： Jae Hyoun Yoo ,  Tae Jin Lee ,  Kyeong Ok Kang ,  Kaoru Watanabe ,  Satoshi Oode ,  Ikuko Sawaya

IPC: H04B3/00 ,  G06F3/16 ,  H04S3/00

CPC classification number: G06F3/16 ,  G06F3/165 ,  G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S2400/11

Abstract: An apparatus and method for generating audio data and an apparatus and method for playing audio data may be disclosed, in which the apparatus for playing the audio data may extract a descriptor related to a multichannel audio signal from a bitstream generated by the apparatus for generating the audio data, and play the multichannel audio signal, based on the extracted descriptor, and the descriptor may include information on an audio signal included in the multichannel audio signal.

公开(公告)号：US09154879B2

公开(公告)日：2015-10-06

申请号：US13834936

申请日：2013-03-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Hyoun Yoo ,  Keun Woo Choi ,  Jeong Il Seo ,  Kyeong Ok Kang

IPC: H04R5/04 ,  H04R3/12

CPC classification number: H04R5/04 ,  H04R3/12 ,  H04R2203/12

Abstract: A Method for processing an audio signal to use a beamforming technique in a three-dimensional (3D) space is disclosed. The method may include generating a beamforming signal on a horizontal plane related to a sound source in a three-dimensional (3D) space and modulating the beamforming signal to head for a listener in the 3D space from the sound source.

Abstract translation: 公开了一种在三维（3D）空间中处理音频信号以使用波束形成技术的方法。 该方法可以包括在与三维（3D）空间中的声源相关的水平平面上生成波束形成信号，并且将该波束形成信号调制为来自声源的3D空间中的收听者。

公开(公告)号：US20140310010A1

公开(公告)日：2014-10-16

申请号：US14358104

申请日：2012-11-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong ll Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Tae Jin Lee ,  Yong Ju Lee ,  Jae Hyoun Yoo ,  Keun Woo Choi ,  Jin Woong Kim

IPC: G10L19/008

CPC classification number: G10L19/008 ,  G10L19/24

Abstract: An encoding apparatus and a decoding apparatus supporting a scalable multichannel audio signal, and methods performed by the apparatuses art provided. When compressing and decompressing a multichannel audio signal to compress and reproduce high quality 3-dimensional (3D) audio, the apparatuses and the methods in integrated form of (1) a sound quality scalability function for providing various qualities of audio adaptively to a transmission environment, terminal performance, and a listening environment (2) a channel scalability function for providing multichannel signals of various formats adaptively to the transmission environment, the terminal performance, and a reproduction environment of a terminal, such as speaker arrangement, and (3) an object scalability function for independently controlling a particular audio object to maximize a 3D sound field effect.

Abstract translation: 支持可扩展多声道音频信号的编码装置和解码装置，以及由所提供的装置技术执行的方法。 当压缩和解压缩多声道音频信号以压缩和再现高质量的三维（3D）音频时，所述装置和方法以（1）声音质量可扩展性功能的综合形式，用于自适应地向传输环境提供音频质量 ，终端性能和收听环境（2）用于自适应地提供诸如扬声器布置的终端的传输环境，终端性能和再现环境的各种格式的多信道信号的信道可扩展性功能，以及（3） 用于独立地控制特定音频对象以最大化3D声场效应的对象可伸缩性功能。