公开(公告)号：EP1859439A4

公开(公告)日：2010-12-22

申请号：EP06716366

申请日：2006-03-14

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JEONG IL ,  BEACK SEUNG KWON ,  JANG IN SEON ,  KANG KYEONG OK ,  HONG JIN WOO ,  HAHN MIN SOO

IPC: G10L19/00 ,  G10L19/008 ,  G10L19/02

CPC classification number: G10L19/008 ,  G10L19/0204

Abstract: A method for compressing and decompressing a multi-channel signal using virtual source location information (VSLI) on a semicircular plane is provided. VSLI, rather than inter channel level difference (ICLD), is used as spatial cue information, thereby minimizing loss caused by quantization of spatial cue information, improving sound quality of a decompressed audio signal, and reproducing an excellent audio signal by reducing distortion upon decompression of an original signal at a decoder spectrum.

公开(公告)号：KR20070088958A

公开(公告)日：2007-08-30

申请号：KR20060018874

申请日：2006-02-27

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BEACK SEUNG KWON ,  JANG DAE YOUNG ,  SEO JEONG IL ,  KANG KYEONG OK ,  HONG JIN WOO ,  KIM JIN WOONG

IPC: G10L19/008 ,  G10L19/02

Abstract: A method for visualization of multi-channel audio signals, a method for converting audio information by using a spatial cue, and an apparatus thereof are provided to visualize reproducing processes of the multi-channel signals and apply variation of the spatial cue to generation of the multi-channel signals, thereby reproducing realistic multi-channel audio signals and adjusting a position of a visual audio source of an audio signal. An apparatus for visualization of multi-channel audio signals, and converting audio information by using a spatial cue comprises the following parts: a SAC(Spatial Audio Coding) which is constituted with a SI decoder(102) for decoding the spatial cue and SAC decoder(101) for synthesizing multi-channel signals; a spatializer(103) and a visualizer(104) for receiving the decoded spatial cue information; and a displayer(105) for receiving a panning angle and power gain information of each channel.

Abstract translation: 提供多声道音频信号可视化的方法，通过使用空间提示来转换音频信息的方法及其装置，以便可视化多声道信号的再现处理，并将空间提示的变化应用于 从而再现真实的多声道音频信号并调整音频信号的可视音频源的位置。 一种用于可视化多声道音频信号的装置，以及通过使用空间提示来转换音频信息的装置包括以下部分：由用于对空间提示和SAC解码器进行解码的SI解码器（102）构成的SAC（空间音频编码） （101），用于合成多声道信号; 空间化器（103）和可视化器（104），用于接收解码的空间提示信息; 以及用于接收每个通道的摇摄角度和功率增益信息的显示器（105）。

公开(公告)号：EP2339577A4

公开(公告)日：2012-05-23

申请号：EP09814808

申请日：2009-09-18

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB

Inventor： BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

IPC: G10L19/14 ,  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 hetero 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 hetero coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded,

公开(公告)号：EP2302623A4

公开(公告)日：2016-04-13

申请号：EP09798078

申请日：2009-07-14

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE TAE JIN ,  BEACK SEUNG KWON ,  KIM MINJE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC: G10L19/02 ,  G10L19/12 ,  G10L19/20

CPC classification number: G10L19/20 ,  G10L19/0212 ,  G10L19/12

Abstract: Provided is an apparatus for integrally encoding and decoding a speech signal and an audio signal. An encoding apparatus for integrally encoding a speech signal and an audio signal, may include: a module selection unit to analyze a characteristic of an input signal and to select a first encoding module for encoding a first frame of the input signal; a speech encoding unit to encode the input signal according to a selection of the module selection unit and to generate a speech bitstream; an audio encoding unit to encode the input signal according to the selection of the module selection unit and to generate an audio bitstream; and a bitstream generation unit to generate an output bitstream from the speech encoding unit or the audio encoding unit according to the selection of the module selection unit.

公开(公告)号：EP1779385A4

公开(公告)日：2007-07-25

申请号：EP05774399

申请日：2005-07-08

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JEONG IL ,  MOON HAN GIL ,  BEACK SEUNG KWON ,  KANG KYEONG OK ,  JANG IN SEON ,  SUNG KOENG MO ,  HAHN MIN SOO ,  HONG JIN WOO

IPC: G11B20/10 ,  G10L19/00 ,  G10L19/008 ,  H04S3/00

CPC classification number: H04S3/008 ,  G10L19/008 ,  H04S2420/03

Abstract: Provided is a method and apparatus for encoding/decoding a multi-channel audio signal. The apparatus for encoding a multi-channel audio signal includes a frame converter for converting the multi-channel audio signal into a framed audio signal; means for downmixing the framed audio signal; means for encoding the downmixed audio signal; a source location information estimator for estimating source location information from the framed multi-channel audio signal; means for quantizing the estimated source location information; and means for multiplexing the encoded audio signal and the quantized source location information, to generate an encoded multi-channel audio signal.

Abstract translation: 提供了一种用于编码/解码多声道音频信号的方法和设备。 用于编码多声道音频信号的设备包括：帧转换器，用于将多声道音频信号转换为成帧音频信号; 用于对混淆的音频信号进行缩混的装置; 用于对缩混后的音频信号进行编码的装置; 源位置信息估计器，用于从成帧的多声道音频信号估计源位置信息; 用于量化估计的源位置信息的装置; 以及用于多路复用编码的音频信号和量化的源位置信息以生成编码的多声道音频信号的装置。

公开(公告)号：EP2302624A4

公开(公告)日：2012-10-31

申请号：EP09798079

申请日：2009-07-14

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB

Inventor： LEE TAE JIN ,  BEACK SEUNG KWON ,  KIM MINJE ,  JANG DAE YOUNG ,  SEO JEONGIL ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC: G01L19/14 ,  G10L19/00 ,  G10L19/008 ,  G10L19/20

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.

公开(公告)号：EP1905034A4

公开(公告)日：2009-11-25

申请号：EP06783342

申请日：2006-07-19

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JEONG IL ,  KANG KYEONG OK ,  HONG JIN WOO ,  KIM KWANG KI ,  BEACK SEUNG KWON ,  HAHN MIN SOO ,  CHON SANG BAE ,  SUNG KOENG MO

IPC: G11B20/10 ,  G10L19/00 ,  G10L19/008 ,  G10L19/02 ,  G10L19/032

CPC classification number: G10L19/032 ,  G10L19/008