公开(公告)号：US20210201923A1

公开(公告)日：2021-07-01

申请号：US17201943

申请日：2021-03-15

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：US20200234718A1

公开(公告)日：2020-07-23

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：US20200154224A1

公开(公告)日：2020-05-14

申请号：US16747372

申请日：2020-01-20

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

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：US20180301155A1

公开(公告)日：2018-10-18

申请号：US16011249

申请日：2018-06-18

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

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.

公开(公告)号：US20180217806A1

公开(公告)日：2018-08-02

申请号：US15662349

申请日：2017-07-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dae Young JANG

IPC: G06F3/16 ,  G06T7/73

CPC classification number: G06F3/165 ,  G06F3/167 ,  G06T7/73 ,  G06T7/74 ,  H04S7/303 ,  H04S2400/11 ,  H04S2400/15

Abstract: Provided is a method of providing a virtual reality using omnidirectional cameras and microphones, a sound signal processing apparatus and an image signal processing apparatus for performing method thereof. The method may include obtaining sound signals of a plurality of sound sources from a plurality of sound signal obtaining apparatuses present at different recording positions in a recording space, determining a direction of each of the sound sources relative to positions of the sound signal obtaining apparatuses based on the sound signals, matching the sound signals by each identical sound source, determining coordinates of the sound sources in the recording space based on the matched sound signals, and generating the sound signals corresponding to virtual positions of the sound signal obtaining apparatuses in the recording space based on the determined coordinates of the sound sources in the recording space and the matched sound signals.

公开(公告)号：US20180130478A1

公开(公告)日：2018-05-10

申请号：US15714273

申请日：2017-09-25

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

CPC classification number: G10L19/0212

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.

公开(公告)号：US20170251320A1

公开(公告)日：2017-08-31

申请号：US15400755

申请日：2017-01-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Ho JEONG ,  Tae Jin LEE ,  Dae Young JANG ,  Jin Soo CHOI

IPC: H04S1/00 ,  G10L21/0332 ,  G10L21/028

CPC classification number: G10L21/0332 ,  G10L19/008 ,  G10L21/028 ,  H04S2400/15

Abstract: Provided is an apparatus and method for creating multilingual audio content based on a stereo audio signal. The method of creating multilingual audio content including adjusting an energy value of each of a plurality of sound sources provided in multiple languages, setting an initial azimuth angle of each of the sound sources based on a number of the sound sources, mixing each of the sound sources to generate a stereo signal based on the set initial azimuth angle, separating the sound sources to play the mixed sound sources using a sound source separating algorithm, and storing the mixed sound sources based on a sound quality of each of the separated sound sources.

公开(公告)号：US20170251319A1

公开(公告)日：2017-08-31

申请号：US15288033

申请日：2016-10-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Ho JEONG ,  Tae Jin LEE ,  Dae Young JANG ,  Jin Soo CHOI

IPC: H04S1/00 ,  G10L19/022 ,  G10L19/008

CPC classification number: G10L19/022 ,  G10L19/008 ,  G10L21/028 ,  H04S2400/15

Abstract: Provided is a method and apparatus for synthesizing a separated sound source, the method including generating spatial information associated with a sound source included in a frame of a stereo audio signal, and synthesizing a separated frequency-domain sound source from the frame of the stereo audio signal based on the spatial information, wherein the spatial information includes a frequency-azimuth plane representing an energy distribution corresponding to a frequency and an azimuth of the frame of the stereo audio signal.

公开(公告)号：US20150117155A1

公开(公告)日：2015-04-30

申请号：US14303241

申请日：2014-06-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dae Young JANG ,  Jeong Il SEO ,  Kyeong Ok KANG

IPC: G10K11/18

CPC classification number: G10K15/02

Abstract: Provided is an acoustic processing apparatus capable of optional sound shielding that may selectively control a sound entering an acoustically shielded interior of a building or a vehicle and form a pleasant acoustic environment, including an acoustic receiver to obtain at least one external acoustic signal, an acoustic signal processor to process the obtained external acoustic signal, and a player to internally play the processed acoustic signal through at least one speaker.

Abstract translation: 提供了一种声音处理设备，其能够选择性地防止声音屏蔽，其可以选择性地控制进入建筑物或车辆的隔音内部的声音并形成令人愉快的声环境，包括声接收器以获得至少一个外部声学信号，声学 信号处理器来处理所获得的外部声音信号，以及玩家通过至少一个扬声器在内部播放经处理的声学信号。

公开(公告)号：US20140314250A1

公开(公告)日：2014-10-23

申请号：US13961993

申请日：2013-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Jin PARK ,  Jeong Il SEO ,  Dae Young JANG ,  Kyeong Ok KANG ,  Jin Woong KIM

IPC: G01S3/801

CPC classification number: G01S5/30 ,  G01S5/18

Abstract: Disclosed is a method of estimating a position by a position estimation system. The method includes generating a time-synchronization signal for position determination using a genetic algorithm, embedding the generated time-synchronization signal in an audio signal, and replaying the audio signal embedded with the time-synchronization signal through a speaker, receiving the audio signal embedded with the time-synchronization signal in a microphone, calculating a time delay value of the time-synchronization signal embedded in the received audio signal, and estimating a position of the microphone based on the calculated time delay value.

Abstract translation: 公开了一种通过位置估计系统估计位置的方法。 该方法包括使用遗传算法产生用于位置确定的时间同步信号，将生成的时间同步信号嵌入到音频信号中，并通过扬声器重播嵌入了时间同步信号的音频信号，接收嵌入的音频信号 利用麦克风中的时间同步信号，计算嵌入在接收到的音频信号中的时间同步信号的时间延迟值，以及基于所计算的时间延迟值来估计麦克风的位置。