公开(公告)号：US20160088416A1

公开(公告)日：2016-03-24

申请号：US14851913

申请日：2015-09-11

Applicant: Electronics and Telecommunications Research Institute ,  Kyonggi University Industry & Academia Cooperation Foundation

Inventor： Jae Hyoun YOO ,  Tae Jin LEE ,  Seok Jin LEE

IPC: H04S3/02 ,  H04S7/00 ,  H04S3/00

CPC classification number: H04S3/02 ,  G10L19/008 ,  G10L19/173 ,  H04S3/008 ,  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 an author of multichannel audio data into a second format that is based on a playback environment of the multichannel audio data and that are each set for corresponding 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 in the second format.

Abstract translation: 提供了一种用于支持动态格式转换的音频元数据提供装置和方法以及多声道音频数据播放装置和方法。 动态格式转换信息可以包括关于多个格式转换方案的信息，所述多个格式转换方案用于将由多声道音频数据的作者将第一格式集合转换成基于多声道音频数据的回放环境的第二格式， 设置用于多声道音频数据的相应重放周期。 音频元数据提供装置可以提供包括动态格式转换信息的音频元数据。 多声道音频数据播放装置可以从音频元数据识别动态格式转换信息，可以基于所识别的动态格式转换信息将多声道音频数据的第一格式转换为第二格式，并且可以将多声道音频数据 第二种格式。

公开(公告)号：US20190147894A1

公开(公告)日：2019-05-16

申请号：US16245024

申请日：2019-01-10

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：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：US20130170646A1

公开(公告)日：2013-07-04

申请号：US13729303

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Hyoun YOO ,  Jeong Il SEO ,  Tae Jin LEE ,  Keun Woo CHOI ,  Kyeong Ok KANG

IPC: H04H20/88

CPC classification number: H04H20/88 ,  G10L19/00 ,  G10L19/008 ,  G10L19/20 ,  H04R5/00 ,  H04S2400/00 ,  H04S2400/01 ,  H04S2420/13

Abstract: An apparatus and method for transmitting a plurality of audio objects using a multichannel encoder and a multichannel decoder are provided. The audio object encoder includes a multichannel encoder determination unit to determine a multichannel encoder to be used for encoding of a plurality of audio objects according to the number of the audio objects, an encoding unit to generate an encoded signal by encoding the plurality of audio objects using the determined multichannel encoder, and a multichannel audio object signal generation unit to generating a multichannel audio object signal, by multiplexing sound image localization information of the plurality of audio objects along with the encoded signal.

Abstract translation: 提供了一种使用多声道编码器和多声道解码器发送多个音频对象的装置和方法。 音频对象编码器包括多声道编码器确定单元，用于根据音频对象的数量确定要用于多个音频对象的编码的多声道编码器;编码单元，用于通过对多个音频对象进行编码来生成编码信号 使用所确定的多声道编码器和多声道音频对象信号生成单元，通过将多个音频对象的声音图像定位信息与编码信号一起多路复用来生成多声道音频对象信号。

公开(公告)号：US20220369058A1

公开(公告)日：2022-11-17

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

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：US20190007778A1

公开(公告)日：2019-01-03

申请号：US16126466

申请日：2018-09-10

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

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：US20160100269A1

公开(公告)日：2016-04-07

申请号：US14814608

申请日：2015-07-31

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong Il SEO ,  Tae Jin PARK ,  Jae Hyoun YOO ,  Yong Ju LEE ,  Jung Woo CHOI

IPC: H04S5/00 ,  H04R5/02 ,  H04R5/04 ,  H04S7/00

CPC classification number: H04S7/301 ,  A63H17/42 ,  G01S7/524 ,  G01S15/89 ,  H04R1/403 ,  H04R3/12 ,  H04R5/04 ,  H04R29/004 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2420/03 ,  H04S3/002 ,  H04S7/304

Abstract: An audio system and method using indoor response estimation are disclosed. An acoustic feature prediction method of the audio system may include generating a detection signal based on an input signal and a modulation code; generating an acoustic signal based on the detection signal and outputting the acoustic signal to a plurality of speakers; measuring acoustic signals output from the speakers where the speakers are installed; and predicting acoustic features related to the speakers based on the measured acoustic signals and the modulation code.

Abstract translation: 公开了一种使用室内响应估计的音频系统和方法。 音频系统的声学特征预测方法可以包括基于输入信号和调制码产生检测信号; 基于检测信号产生声信号，并将声信号输出到多个扬声器; 测量从扬声器安装的扬声器输出的声学信号; 并且基于所测量的声信号和调制码来预测与扬声器相关的声学特征。

公开(公告)号：US20150025894A1

公开(公告)日：2015-01-22

申请号：US14333092

申请日：2014-07-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju LEE ,  Jeong Il SEO ,  Jae Hyoun YOO ,  Kyeong Ok KANG ,  Jin Woong KIM ,  Seung Kwon BEACK ,  Jong Mo SUNG ,  Tae Jin LEE

IPC: G10L19/008 ,  G10L19/002

CPC classification number: G10L19/008 ,  G10L19/002

Abstract: Provided are a method of encoding and decoding a multichannel audio signal, and an encoder and a decoder to perform the method. The present invention may perform encoding into consideration of a size of bit to be allocated based on a feature of audio signal for each channel with respect to an audio signal having a plurality of channels, thereby enhancing an encoding efficiency of the multichannel audio signal.

Abstract translation: 提供了一种编码和解码多声道音频信号的方法，以及用于执行该方法的编码器和解码器。 本发明可以考虑到基于每个信道的音频信号的特征相对于具有多个信道的音频信号来分配的比特的大小，从而增强多声道音频信号的编码效率。

公开(公告)号：US20130272525A1

公开(公告)日：2013-10-17

申请号：US13846726

申请日：2013-03-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Hyoun YOO ,  Jeong Il SEO ,  Tae Jin LEE ,  Kyeong Ok KANG

IPC: H04S7/00

CPC classification number: H04S7/30 ,  G10L19/167 ,  H04S3/002 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

Abstract: An apparatus for providing audio metadata, the apparatus including an audio data generating unit to generate audio metadata including channel information of raw audio data, and an audio metadata transmitting unit to transmit the generated audio metadata to an apparatus for reproducing audio data.

Abstract translation: 一种用于提供音频元数据的装置，该装置包括音频数据生成单元，用于生成包括原始音频数据的频道信息的音频元数据和音频元数据发送单元，用于将生成的音频元数据发送到用于再现音频数据的装置。

公开(公告)号：US20210144505A1

公开(公告)日：2021-05-13

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

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.