公开(公告)号：US20190096417A1

公开(公告)日：2019-03-28

申请号：US16199987

申请日：2018-11-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

公开(公告)号：US20160293171A1

公开(公告)日：2016-10-06

申请号：US15051232

申请日：2016-02-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon BAECK ,  Tae Jin PARK ,  Jong Mo SUNG ,  Yong Ju LEE ,  Tae Jin LEE ,  Jin Soo CHOI

IPC: G10L19/018 ,  G10L21/0232 ,  G10L19/06

CPC classification number: G10L19/018

Abstract: Methods and apparatuses for hiding and extracting data based on a pilot code sequence are provided. A data hiding method may include converting an input audio signal to a frequency domain, distorting phase information of the audio signal converted to the frequency domain based on a pilot code sequence representing data to be hidden, and converting the audio signal with the distorted phase information to a time domain and transmitting the audio signal converted to the time domain. The pilot code sequence may be a set of phase values corresponding to a bit value “0” or “1” of data.

Abstract translation: 提供了基于导频代码序列隐藏和提取数据的方法和装置。 数据隐藏方法可以包括：将输入音频信号转换为频域，根据表示要隐藏的数据的导频代码序列，将转换到频域的音频信号的相位信息失真，以及用失真相位信息转换音频信号 发送到时域，并发送转换为时域的音频信号。 导频代码序列可以是对应于数据的位值“0”或“1”的一组相位值。

公开(公告)号：US20150371645A1

公开(公告)日：2015-12-24

申请号：US14758642

申请日：2014-01-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeong Il SEO ,  Seung Kwon BEACK ,  Dae Young JANG ,  Kyeong Ok KANG ,  Tae Jin PARK ,  Yong Ju LEE ,  Keun Woo CHOI ,  Jin Woong KIM

IPC: G10L19/008 ,  H04S7/00

CPC classification number: G10L19/008 ,  H04S3/00

Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.

Abstract translation: 公开了一种用于控制信道信号的编码/解码装置和方法，其中编码装置可以包括对目标信号进行编码的编码器，信道信号和用于信道信号的渲染信息，以及比特流生成器， 比特流，编码对象信号，编码信道信号和用于信道信号的编码渲染信息。

公开(公告)号：US20150066518A1

公开(公告)日：2015-03-05

申请号：US14477498

申请日：2014-09-04

Applicant: Electronics and Telecommunications Research Institute

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

IPC: G10L19/00

CPC classification number: H04S3/008 ,  G10L19/008 ,  H04S2420/03

Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.

Abstract translation: 提供了对包含对象声音，背景声音和元数据的混合内容进行编码的音频编码装置和方法，以及对编码的混合内容进行解码的音频解码装置和方法。 音频编码装置可以包括：混合单元，用于通过混合背景声音和对象声音来生成中间声道信号;矩阵信息编码单元，对用于混合的矩阵信息进行编码;音频编码单元，对中间声道信号进行编码; 以及元数据编码单元，用于编码包括对象声音的控制信息的元数据。

公开(公告)号：US20240340609A1

公开(公告)日：2024-10-10

申请号：US18439910

申请日：2024-02-13

Applicant: Electronics and Telecommunications Research Institute

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

CPC classification number: H04S7/305 ,  H04S7/307

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.

公开(公告)号：US20230308828A1

公开(公告)日：2023-09-28

申请号：US18191695

申请日：2023-03-28

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20230224669A1

公开(公告)日：2023-07-13

申请号：US18090070

申请日：2022-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae-hyoun YOO ,  Kyeongok KANG ,  Yong Ju LEE ,  Dae Young JANG

IPC: H04S7/00 ,  G06T7/73

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.

公开(公告)号：US20230224668A1

公开(公告)日：2023-07-13

申请号：US18096439

申请日：2023-01-12

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20230224662A1

公开(公告)日：2023-07-13

申请号：US18146685

申请日：2022-12-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

公开(公告)号：US20230224661A1

公开(公告)日：2023-07-13

申请号：US17713059

申请日：2022-04-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju LEE ,  Jae-hyoun YOO ,  Dae Young JANG ,  Kyeongok KANG ,  Tae Jin LEE

IPC: H04S7/00 ,  H04S5/00

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.