公开(公告)号：US20190007778A1

公开(公告)日：2019-01-03

申请号：US16126466

申请日：2018-09-10

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.

公开(公告)号：US20190005971A1

公开(公告)日：2019-01-03

申请号：US16126964

申请日：2018-09-10

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

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：US20180139556A1

公开(公告)日：2018-05-17

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

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.

公开(公告)号：US20160307579A1

公开(公告)日：2016-10-20

申请号：US15194174

申请日：2016-06-27

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: 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).

公开(公告)号：US20160203824A1

公开(公告)日：2016-07-14

申请号：US14841244

申请日：2015-08-31

Applicant: Electronics And Telecommunications Research Institute

Inventor： Tae Jin PARK ,  Seung Kwon BEACK ,  Jong Mo SUNG ,  Yong Ju LEE ,  Kyeong Ok KANG ,  Jin Woong KIM ,  Tae Jin LEE

IPC: G10L19/018

CPC classification number: G10L19/018 ,  G06F16/64 ,  G06F16/683 ,  H04N21/4394 ,  H04N21/8358

Abstract: Example embodiments of the present invention relate to an audio signal communication method at a transmitter and a receiver, and a system thereof. There may be provided an audio signal communication method which includes hiding data in an audio signal via audio watermarking and extracting a fingerprint of the audio signal, generating a transmit audio signal by audio-watermarking the audio signal from which the fingerprint is extracted with the data, extracting the fingerprint of the audio signal using the audio signal and the transmit audio signal, and transmitting the transmit audio signal to a receiver.

Abstract translation: 本发明的示例性实施例涉及一种在发射机和接收机处的音频信号通信方法及其系统。 可以提供一种音频信号通信方法，其包括通过音频水印隐藏音频信号中的数据并提取音频信号的指纹，通过用数据通过音频水印来提取指纹的音频信号来产生发送音频信号 使用音频信号和发送音频信号提取音频信号的指纹，并且将发送音频信号发送到接收机。

公开(公告)号：US20160071522A1

公开(公告)日：2016-03-10

申请号：US14783767

申请日：2014-04-10

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 ,  G10L19/02 ,  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.

Abstract translation: 公开了一种用于多声道信号的编码器和编码方法，以及用于多声道信号的解码器和解码方法。 可以通过连续的下混合或上混合来有效地处理多信道信号。

公开(公告)号：US20150081286A1

公开(公告)日：2015-03-19

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: G10L19/125

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：US20150025894A1

公开(公告)日：2015-01-22

申请号：US14333092

申请日：2014-07-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju LEE ,  Jeong Il SEO ,  Jae Hyoun YOO ,  Kyeong Ok KANG ,  Jin Woong KIM ,  Seung Kwon BEACK ,  Jong Mo SUNG ,  Tae Jin LEE

IPC: G10L19/008 ,  G10L19/002

CPC classification number: G10L19/008 ,  G10L19/002

Abstract: Provided are a method of encoding and decoding a multichannel audio signal, and an encoder and a decoder to perform the method. The present invention may perform encoding into consideration of a size of bit to be allocated based on a feature of audio signal for each channel with respect to an audio signal having a plurality of channels, thereby enhancing an encoding efficiency of the multichannel audio signal.

Abstract translation: 提供了一种编码和解码多声道音频信号的方法，以及用于执行该方法的编码器和解码器。 本发明可以考虑到基于每个信道的音频信号的特征相对于具有多个信道的音频信号来分配的比特的大小，从而增强多声道音频信号的编码效率。

公开(公告)号：US20250069609A1

公开(公告)日：2025-02-27

申请号：US18948841

申请日：2024-11-15

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: G10L19/02

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 MIDCT-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.

公开(公告)号：US20240290335A1

公开(公告)日：2024-08-29

申请号：US18435334

申请日：2024-02-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon BEACK ,  Byeongho CHO

IPC: G10L19/032 ,  G10L19/06

CPC classification number: G10L19/032 ,  G10L19/06

Abstract: Disclosed are an audio signal encoding/decoding method and an apparatus for performing the same. An audio signal encoding method includes receiving a current frame signal and a reconstructed previous frame signal, generating a predicted current frame signal, based on the current frame signal and the reconstructed previous frame signal, and outputting a reconstructed residual signal, based on the current frame signal and the predicted current frame signal.