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：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：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.

公开(公告)号：US20170278521A1

公开(公告)日：2017-09-28

申请号：US15620119

申请日：2017-06-12

Applicant: Electronics and Telecommunications Research Institute

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

IPC: G10L19/008 ,  H04S3/00

CPC classification number: G10L19/008 ,  H04S3/008 ,  H04S2400/03

Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.

公开(公告)号：US20170076735A1

公开(公告)日：2017-03-16

申请号：US15260717

申请日：2016-09-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon BEACK ,  Tae Jin LEE ,  Jong Mo SUNG ,  Kyu Tae YANG ,  Bong Ho LEE ,  Mi Suk LEE ,  Hyoung Soo LIM ,  Jin Soo CHOI

IPC: G10L19/22 ,  G10L19/005 ,  G10L19/16 ,  G10L19/008

CPC classification number: G10L19/167 ,  G10L19/18

Abstract: Disclosed is a unified speech and audio coding (USAC) audio signal encoding/decoding apparatus and method for digital radio services. An audio signal encoding method may include receiving an audio signal, determining a coding method for the received audio signal, encoding the audio signal based on the determined coding method, and configuring, as an audio superframe of a fixed size, an audio stream generated as a result of encoding the audio signal, wherein the coding method may include a first coding method associated with extended high-efficiency advanced audio coding (xHE-AAC) and a second coding method associated with existing advanced audio coding (AAC).

Abstract translation: 公开了用于数字无线电业务的统一语音和音频编码（USAC）音频信号编码/解码装置和方法。 音频信号编码方法可以包括接收音频信号，确定所接收的音频信号的编码方法，根据所确定的编码方法对音频信号进行编码，并且将作为固定大小的音频超帧配置为以 编码音频信号的结果，其中编码方法可以包括与扩展的高效率高级音频编码（xHE-AAC）相关联的第一编码方法和与现有高级音频编码（AAC）相关联的第二编码方法。

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：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：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。