公开(公告)号：US20200176002A1

公开(公告)日：2020-06-04

申请号：US16786817

申请日：2020-02-10

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：US20190215631A1

公开(公告)日：2019-07-11

申请号：US16354890

申请日：2019-03-15

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

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：US20190200150A1

公开(公告)日：2019-06-27

申请号：US16290469

申请日：2019-03-01

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

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：US20190164560A1

公开(公告)日：2019-05-30

申请号：US16262144

申请日：2019-01-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju LEE ,  Tae Jin LEE ,  Kyeong Ok KANG ,  Jin Woong KIM ,  Chie Teuk AHN

IPC: G10L19/16 ,  H04N21/81 ,  H04N21/439 ,  H04N21/233 ,  G10L19/008 ,  H04H20/89 ,  G10L19/20 ,  H04H20/95

Abstract: A broadcast transmitting apparatus and method, and a broadcast playback apparatus and method for providing an object-based audio by encoding and decoding a multichannel audio signal are provided. The broadcast transmitting apparatus may generate audio identification information used to determine whether the multichannel audio signal is an object-based audio signal. When the multichannel audio signal is determined to be the object-based audio signal, based on the audio identification information, the broadcast playback apparatus may control and output the multichannel audio signal for each channel.

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：US20180261235A1

公开(公告)日：2018-09-13

申请号：US15980012

申请日：2018-05-15

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

Inventor： Seungkwon BEACK ,  Tae Jin LEE ,  Min Je KIM ,  Kyeongok KANG ,  Dae Young JANG ,  Jeongil SEO ,  Jin Woo HONG ,  Chieteuk AHN ,  Ho Chong PARK ,  Young-cheol PARK

IPC: G10L19/22 ,  G10L19/022 ,  G10L19/06 ,  G10L19/18

CPC classification number: G10L19/22 ,  G10L19/022 ,  G10L19/06 ,  G10L19/18

Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.

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：US20170103765A1

公开(公告)日：2017-04-13

申请号：US15383200

申请日：2016-12-19

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 ,  H04N21/235 ,  G10L19/26 ,  H04N21/435 ,  H04H20/95 ,  G10L19/008 ,  H04N21/2343 ,  H04N21/434

CPC classification number: G10L19/167 ,  G10L19/008 ,  G10L19/26 ,  H04H20/95 ,  H04H2201/11 ,  H04L45/00 ,  H04N7/52 ,  H04N21/234318 ,  H04N21/235 ,  H04N21/236 ,  H04N21/434 ,  H04N21/4343 ,  H04N21/435 ,  H04N21/4398 ,  H04N21/6547 ,  H04N21/8106

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：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。