公开(公告)号：US20210142812A1

公开(公告)日：2021-05-13

申请号：US17098090

申请日：2020-11-13

申请人： Electronics and Telecommunications Research Institute ,  The Trustees of Indiana University

发明人： Minje KIM ,  Kai ZHEN ,  Mi Suk LEE ,  Seung Kwon BEACK ,  Jongmo SUNG ,  Tae Jin LEE ,  Jin Soo CHOI

IPC分类号： G10L19/08 ,  G10L19/032 ,  G10L19/26 ,  G10L21/0208 ,  G10L25/30 ,  G10L13/02 ,  G06N3/08

摘要： Disclosed are a method for coding a residual signal of LPC coefficients based on collaborative quantization and a computing device for performing the method. The residual signal coding method includes: generating encoded LPC coefficients and LPC residual signals by performing LPC analysis and quantization on an input speech; Determining a predicted LPC residual signal by applying the LPC residual signal to cross module residual learning; Performing LPC synthesis using the coded LPC coefficients and the predicted LPC residual signal; It may include the step of determining an output speech that is a synthesized output according to a result of performing the LPC synthesis.

公开(公告)号：US20210005209A1

公开(公告)日：2021-01-07

申请号：US16814103

申请日：2020-03-10

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Seung Kwon BEACK ,  Jongmo SUNG ,  Mi Suk LEE ,  Tae Jin LEE ,  Hochong PARK

IPC分类号： G10L19/02 ,  G10L19/032 ,  G10L21/038 ,  G06N3/04

摘要： Disclosed are a method of encoding a high band of an audio, a method of decoding a high band of an audio, and an encoder and a decoder for performing the methods. The method of decoding a high band of an audio, the method performed by a decoder, includes identifying a parameter extracted through a first neural network, identifying side information extracted through a second neural network, and restoring a high band of an audio by applying the parameter and the side information to a third neural network.

公开(公告)号：US20190289413A1

公开(公告)日：2019-09-19

申请号：US16357180

申请日：2019-03-18

申请人： Electronics And Telecommunications Research Institute

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

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

摘要： 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：US20190035412A1

公开(公告)日：2019-01-31

申请号：US16081169

申请日：2017-03-21

申请人： Electronics And Telecommunications Research Institute

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

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

摘要： 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

申请人： Electronics and Telecommunications Research Institute

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

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

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

摘要： 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：US20170278521A1

公开(公告)日：2017-09-28

申请号：US15620119

申请日：2017-06-12

申请人： Electronics and Telecommunications Research Institute

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

IPC分类号： G10L19/008 ,  H04S3/00

CPC分类号： G10L19/008 ,  H04S3/008 ,  H04S2400/03

摘要： 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

申请人： Electronics and Telecommunications Research Institute

发明人： 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分类号： G10L19/22 ,  G10L19/005 ,  G10L19/16 ,  G10L19/008

CPC分类号： G10L19/167 ,  G10L19/18

摘要： 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).

摘要翻译： 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：US20150371645A1

公开(公告)日：2015-12-24

申请号：US14758642

申请日：2014-01-15

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： 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分类号： G10L19/008 ,  H04S7/00

CPC分类号： G10L19/008 ,  H04S3/00

摘要： 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.

摘要翻译： 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

申请人： Electronics and Telecommunications Research Institute

发明人： 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分类号： G10L19/00

CPC分类号： H04S3/008 ,  G10L19/008 ,  H04S2420/03

摘要： 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.

摘要翻译： 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：US20240233738A9

公开(公告)日：2024-07-11

申请号：US18358646

申请日：2023-07-25

申请人： Electronics and Telecommunications Research Institute ,  Gwangju Institute of Science and Technology

发明人： Inseon JANG ,  Seung Kwon BEACK ,  Tae Jin LEE ,  Jongmo SUNG ,  Woo-taek LIM ,  Byeongho CHO ,  Jongwon SHIN

IPC分类号： G10L19/02

CPC分类号： G10L19/02

摘要： Provided is an encoding apparatus including a memory configured to store instructions and a processor electrically connected to the memory and configured to execute the instructions, wherein the processor may be configured to perform a plurality of operations, when the instructions are executed by the processor, wherein the plurality of operations may include obtaining an input audio signal, generating an embedded audio signal by embedding signal components of a second frequency band of the input audio signal in a first frequency band of the input audio signal, generating additional information associated with the first frequency band and the second frequency band, generating an encoded audio signal by encoding the embedded audio signal, and formatting the encoded audio signal and the additional information into a bitstream.