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：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：US20250006210A1

公开(公告)日：2025-01-02

申请号：US18747007

申请日：2024-06-18

Applicant: Electronics and Telecommunications Research Institute ,  UIF (University Industry Foundation), Yonsei University

Inventor： Woo-taek LIM ,  Inseon JANG ,  Seung Kwon BEACK ,  Hong-Goo KANG ,  Byeong Hyeon KIM ,  Jihyun LEE ,  Hyungseob LIM

IPC: G10L19/08

Abstract: A method of encoding/decoding a speech signal and a device for performing the same are provided. The method includes outputting, based on a first input speech signal of a previous timepoint and a second input speech signal of a current timepoint, a predicted signal that predicts the second input speech signal from the first input speech signal and obtaining, based on the second input speech signal and the predicted signal, a residual signal by removing a correlation between the first input speech signal and the second input speech signal from the second input speech signal.

公开(公告)号：US20240233738A9

公开(公告)日：2024-07-11

申请号：US18358646

申请日：2023-07-25

Applicant: Electronics and Telecommunications Research Institute ,  Gwangju Institute of Science and Technology

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

IPC: G10L19/02

CPC classification number: G10L19/02

Abstract: 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.

公开(公告)号：US20240169997A1

公开(公告)日：2024-05-23

申请号：US18505970

申请日：2023-11-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Jong Mo SUNG ,  Seung Kwon BEACK ,  Young Cheol Park ,  Joon BYUN ,  Seung Min SHIN

IPC: G10L19/005

CPC classification number: G10L19/005

Abstract: An audio signal processing method, which is executed by a processor electronically communicating with a deep neural network within a computing system, may comprise: acquiring, by the processor, an input signal before encoding and an output signal after quantization and decoding; calculating, by the processor, a perceptual global loss for a frame corresponding to the input and the output signals; acquiring, by the processor, a plurality of subframes corresponding to the input and output signals by applying a windowing function to the frame of the input and output signals; calculating, by the processor, perceptual local losses for the plurality of subframes corresponding to the input and output signals; and acquiring, by the processor, multi-time scale perceptual loss based on the perceptual global and local losses.

公开(公告)号：US20240055009A1

公开(公告)日：2024-02-15

申请号：US18349680

申请日：2023-07-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byeongho CHO ,  Seung Kwon BEACK ,  Jongmo SUNG ,  Tae Jin LEE ,  Woo-taek LIM ,  Inseon JANG

IPC: G10L19/032

CPC classification number: G10L19/032

Abstract: Provided are an apparatus for encoding an audio signal and a method of an operation thereof. An audio signal encoding method includes obtaining quantized linear prediction (LP) coefficients by performing a linear predictive coding (LPC) analysis and quantization on an input audio signal, generating a reference signal by applying discrete Fourier transform (DFT) to the input audio signal, obtaining LP residual coefficients from the reference signal, scaling magnitudes of the LP residual coefficients using the quantized LP coefficients and the reference signal, and quantizing phases of the LP residual coefficients and the scaled magnitudes of the LP residual coefficients.

公开(公告)号：US20230230604A1

公开(公告)日：2023-07-20

申请号：US18099119

申请日：2023-01-19

Applicant: Electronics and Telecommunications Research Institute ,  Gwangju Institute of Science and Technology

Inventor： Inseon JANG ,  Tae Jin LEE ,  Seung Kwon BEACK ,  Jongmo SUNG ,  Woo-taek LIM ,  Byeongho CHO ,  Jongwon SHIN ,  Soojoong HWANG ,  Eunkyun LEE ,  Youngwon CHOI ,  Sangwook HAN

IPC: G10L19/02 ,  G10L25/30

CPC classification number: G10L19/0204 ,  G10L25/30

Abstract: A method of encoding an audio signal and an encoder and a method of decoding an audio signal and a decoder are provided. The method of encoding an audio signal includes outputting a decoded signal by using a bitstream that encodes an audio signal, separating the decoded signal into a low-band signal and a high-band signal by using a sound source separator, upsampling the low-band signal, upsampling the high-band signal, and restoring the audio signal by synthesizing the upsampled low-band signal with the upsampled high-band signal, wherein the bitstream is generated by encoding a superimposed signal in which a signal in a high frequency band of the audio signal is superimposed on a low frequency band of the audio signal.

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.