公开(公告)号：US11289105B2

公开(公告)日：2022-03-29

申请号：US16447573

申请日：2019-06-20

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 ,  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.

公开(公告)号：US10950248B2

公开(公告)日：2021-03-16

申请号：US16841428

申请日：2020-04-06

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：US10237673B2

公开(公告)日：2019-03-19

申请号：US15871669

申请日：2018-01-15

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: H04S3/00 ,  G10L19/008

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.

公开(公告)号：US10225675B2

公开(公告)日：2019-03-05

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 ,  G10L19/008 ,  H04S5/00 ,  H04S3/00 ,  H04S3/02

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：US10199045B2

公开(公告)日：2019-02-05

申请号：US15838031

申请日：2017-12-11

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：US09842597B2

公开(公告)日：2017-12-12

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：US09711159B2

公开(公告)日：2017-07-18

申请号：US14605006

申请日：2015-01-26

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: G10L19/00 ,  G10L21/00 ,  G10L19/12 ,  G10L19/008 ,  G10L19/20 ,  G10L19/22

CPC classification number: G10L19/12 ,  G10L19/008 ,  G10L19/02 ,  G10L19/20 ,  G10L19/22 ,  G11C2207/16

Abstract: 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; a frequency band expander with the spectral band replication (SBR) standard for expanding the frequency band of the input signal whose output is transmitted to either the first conversion encoder or the LPC encoder based on the input characteristic; 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：US09378749B2

公开(公告)日：2016-06-28

申请号：US14541904

申请日：2014-11-14

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Tae Jin Lee ,  Min Je Kim ,  Kyeongok Kang ,  Dae Young Jang ,  Jin Woo Hong ,  Jeongil Seo ,  Chieteuk Ahn ,  Hochong Park ,  Young-cheol Park

IPC: G10L21/00 ,  G10L19/125 ,  G10L19/22

CPC classification number: G10L19/087 ,  G10L19/125 ,  G10L19/22 ,  G10L19/26

Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).

Abstract translation: 公开了一种基于MDCT的统一语音和音频编码装置的LPC残余信号编码/解码装置。 LPC残差信号编码装置分析输入信号的特性，选择LPC滤波信号的编码方式，并根据实数滤波器组，复滤波器组和代数码激励线性预测（LPC滤波器组） ACELP）。

公开(公告)号：US20150095023A1

公开(公告)日：2015-04-02

申请号：US14534781

申请日：2014-11-06

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: G10L19/008 ,  G10L19/12

CPC classification number: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/04 ,  G10L19/12 ,  G10L19/20

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.

Abstract translation: 提供了一种用于对语音信号和音频信号进行整体编码和解码的编码装置，并且可以包括：输入信号分析器，用于分析输入信号的特性; 立体声编码器，当输入信号是立体声信号时，将输入信号向下混合成单声道信号，并提取立体声声像信息; 用于扩展输入信号的频带的频带扩展器; 用于转换采样率的采样率转换器; 语音信号编码器，当所述输入信号是语音特征信号时，使用语音编码模块对所述输入信号进行编码; 音频信号编码器，当所述输入信号是音频特征信号时，使用音频编码模块对所述输入信号进行编码; 以及比特流发生器，用于生成比特流。

公开(公告)号：US12148438B2

公开(公告)日：2024-11-19

申请号：US17373243

申请日：2021-07-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

Inventor： Seung Kwon Beack ,  Tae Jin Lee ,  Min Je Kim ,  Dae Young Jang ,  Kyeongok Kang ,  Jin Woo Hong ,  Ho Chong Park ,  Young-cheol Park

IPC: G10L19/022 ,  G10L19/02 ,  G10L19/18

Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a different coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the different coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.