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    Aparato para restaurar una señal de audio multicanal usando un decodificador de MPEG surround
    3.
    发明专利
    Aparato para restaurar una señal de audio multicanal usando un decodificador de MPEG surround 未知

    公开(公告)号：ES2405311T3

    公开(公告)日：2013-05-30

    申请号：ES11184461

    申请日：2007-07-04

    Applicant: KOREA ELECTRONICS TELECOMM

    Inventor： SEO JEONG-IL ,  BEACK SEUNG-KWON ,  JANG IN-SEON ,  JANG DAE-YOUNG ,  KIM JIN-WOONG ,  HONG JIN-WOO

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

    Abstract: Decodificador de Moving Picture Experts Group (MPEG) surround de alta calidad para generar señales deaudio multicanal usando un flujo de bits de información anexa y señales de mezcla reducida, en el que lasseñales de mezcla reducida son al menos una de entre un dominio de filtro espejo en cuadratura (QMF)real, un dominio QMF complejo y un dominio de tiempo, comprendiendo el decodificador:un banco de análisis de QMF (601) para realizar análisis de QMF en señales de mezcla reducida deldominio de tiempo; una unidad de retardo (602) para aplicar un retardo introducido en una conversión real a complejo de bajapotencia a las señales de salida producidas a la salida del banco de análisis de QMF (601) y a las señalesde mezcla reducida del dominio QMF complejo; y un banco de filtros de análisis de Nyquist (603) para realizar un análisis de Nyquist a las señales retardadasy a las señales de entrada residuales QMF.

    METHOD AND APPARATUS FOR GENERATING ADDITIONAL INFORMATION BIT STREAM OF MULTI-OBJECT AUDIO SIGNAL
    4.
    发明申请
    METHOD AND APPARATUS FOR GENERATING ADDITIONAL INFORMATION BIT STREAM OF MULTI-OBJECT AUDIO SIGNAL 审中-公开
    用于生成多目标音频信号的附加信息位流的方法和设备

    公开(公告)号：WO2009123409A3

    公开(公告)日：2009-11-26

    申请号：PCT/KR2009001615

    申请日：2009-03-30

    Applicant: KOREA ELECTRONICS TELECOMM ,  SEO JEONG-IL ,  BEACK SEUNG-KWON ,  LEE TAE-JIN ,  LEE YONG-JU ,  JANG DAE-YOUNG ,  KANG KYEONGOK ,  HONG JIN-WOO ,  KIM JIN-WOONG ,  AHN CHIETEUK

    Inventor： SEO JEONG-IL ,  BEACK SEUNG-KWON ,  LEE TAE-JIN ,  LEE YONG-JU ,  JANG DAE-YOUNG ,  KANG KYEONGOK ,  HONG JIN-WOO ,  KIM JIN-WOONG ,  AHN CHIETEUK

    IPC: G10L19/20 ,  G10L19/008 ,  G11B20/10 ,  H03M7/30

    CPC classification number: H04S7/308 ,  G10L19/008 ,  H04S5/00 ,  H04S2400/03 ,  H04S2400/11

    Abstract: The present invention relates to a method and an apparatus for generating an additional information bit stream of a multi-object audio signal. The apparatus for generating an additional information bit stream of a multi-object audio signal according to the present invention includes a spatial cue information input unit for taking, as an input, spatial cue information generated from a multi-object audio signal encoding device, a preset information input unit for taking, as an input, preset information for a multi-object audio signal, and an additional information bit stream generating unit for generating an additional information bit stream by using the spatial cue information and the preset information. The additional information bit stream includes a header region and a frame region. The preset information is included in the frame region. The apparatus of the present invention is advantageous as it is capable of changing set audio scene information in accordance with the idea of an editor or a sound engineer even during reproduction of a multi-object audio signal because preset information is included in the frame region of the additional information bit stream generated during encoding of the multi-object audio signal.

    Abstract translation: 本发明涉及一种用于生成多目标音频信号的附加信息比特流的方法和设备。 根据本发明的用于产生多客体音频信号的附加信息比特流的设备包括：空间线索信息输入单元，用于将从多客体音频信号编码装置产生的空间线索信息作为输入; 预置信息输入单元，用于以多个对象音频信号的预置信息作为输入;以及附加信息位流生成单元，用于通过使用空间提示信息和预置信息生成附加信息位流。 附加信息比特流包括头部区域和帧区域。 预设信息包含在边框区域中。 本发明的设备是有利的，因为即使在多对象音频信号的再现期间，由于预置信息被包括在帧的区域中，所以它能够根据编辑者或音响工程师的想法来改变所设置的音频场景信息 在多目标音频信号的编码期间产生的附加信息比特流。

    ENCODING AND DECODING METHOD USING VARIABLE SUBBAND ANALYSIS AND APPARATUS THEREOF
    5.
    发明申请
    ENCODING AND DECODING METHOD USING VARIABLE SUBBAND ANALYSIS AND APPARATUS THEREOF 审中-公开
    使用可变子带分析的编码和解码方法及其设备

    公开(公告)号：WO2009048239A3

    公开(公告)日：2009-05-28

    申请号：PCT/KR2008005824

    申请日：2008-10-02

    Applicant: KOREA ELECTRONICS TELECOMM ,  SEO JEONG-IL ,  BEACK SEUNGKWON ,  JANG INSEON ,  KANG KYEONGOK ,  HONG JINWOO ,  KIM JINWOONG ,  AHN CHIETEUK

    Inventor： SEO JEONG-IL ,  BEACK SEUNGKWON ,  JANG INSEON ,  KANG KYEONGOK ,  HONG JINWOO ,  KIM JINWOONG ,  AHN CHIETEUK

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

    CPC classification number: G10L19/008 ,  G10L19/0204

    Abstract: Disclosed are encoding and decoding apparatuses and methods based on variable sub-band analysis. The encoding method based on variable sub-band analysis includes: generating down-mixed signals out of inputted multiple audio objects and encoding the down-mixed signals; transforming the multiple audio objects into a frequency domain to thereby produce frequency-domain signals; dividing a sub-band of the frequency-domain signals into variable sub-bands based on a characteristic of the sub-band and generating variable sub-band information including information on the variable sub- bands; generating parameter information used for recovering the down-mixed signals based on the variable sub-bands; and encoding the variable sub-band information and the parameter information.

    Abstract translation: 公开了基于可变子带分析的编码和解码装置和方法。 基于可变子带分析的编码方法包括：从输入的多个音频对象产生下混合信号并对下变频信号进行编码; 将多个音频对象变换成频域从而产生频域信号; 基于子带的特性将频域信号的子带划分成可变子带，并生成包括关于可变子带的信息的可变子带信息; 生成用于基于所述可变子带恢复所述下混合信号的参数信息; 并对可变子带信息和参数信息进行编码。

    OBJECT-BASED 3-DIMENSIONAL AUDIO SERVICE SYSTEM USING PRESET AUDIO SCENES
    6.
    发明申请
    OBJECT-BASED 3-DIMENSIONAL AUDIO SERVICE SYSTEM USING PRESET AUDIO SCENES 审中-公开
    使用预置音频场景的基于对象的三维音频服务系统

    公开(公告)号：WO2007136187A9

    公开(公告)日：2008-11-27

    申请号：PCT/KR2007002395

    申请日：2007-05-16

    Applicant: KOREA ELECTRONICS TELECOMM ,  LEE YONG-JU ,  LEE TAE-JIN ,  YOO JAE-HYOUN ,  KANG KYEONG-OK ,  HONG JIN-WOO ,  JANG IN-SEON ,  SEO JEONG-IL ,  JANG DAE-YOUNG

    Inventor： LEE YONG-JU ,  LEE TAE-JIN ,  YOO JAE-HYOUN ,  KANG KYEONG-OK ,  HONG JIN-WOO ,  JANG IN-SEON ,  SEO JEONG-IL ,  JANG DAE-YOUNG

    IPC: H04N7/00

    CPC classification number: H04H20/89 ,  H04S7/30 ,  H04S2400/11

    Abstract: Provided are an object-based three dimensional (3-D) audio service system using preset audio scenes and a method thereof. The system and the method are suggested for enabling a user to easily and conveniently watch and listen an object based 3-D audio service by eliminating inconvenience that requires a user to control each of object audio signals of sound sources. The system includes: audio input means for inputting an audio signal; preset audio scene generating means for extracting object audio signals from the audio signal inputted through the audio input means and generating more than one of 3-D audio scene information by arranging the extracted object audio signals in a 3-D space and editing features of each object; and encoding means for encoding and multiplexing the audio signal and the 3-D audio scene information for each object audio signal.

    Abstract translation: 提供了使用预设音频场景的基于对象的三维（3-D）音频服务系统及其方法。 建议使用该系统和方法，以便用户能够通过消除需要用户控制声源的每个对象音频信号的不便，来容易且方便地观看和收听基于对象的3-D音频服务。 该系统包括：用于输入音频信号的音频输入装置; 预置音频场景产生装置，用于从通过音频输入装置输入的音频信号中提取对象音频信号，并通过将提取的对象音频信号排列在3-D空间中并产生多个3-D音频场景信息，并且编辑每个 目的; 以及用于对每个对象音频信号对音频信号和3-D音频场景信息进行编码和多路复用的编码装置。

    7.
    发明专利
    未知

    公开(公告)号：AT554479T

    公开(公告)日：2012-05-15

    申请号：AT07833387

    申请日：2007-10-17

    Applicant: KOREA ELECTRONICS TELECOMM

    Inventor： LEE YONG-JU ,  SEO JEONG-IL ,  BEACK SUENG-KWON ,  JANG DAE-YOUNG ,  HONG JIN-WOO

    IPC: G10L19/00 ,  G10L19/008 ,  G10L19/14 ,  G10L19/16

    Abstract: Provided are an apparatus and method for transmitting and reproducing a multichannel audio signal. The apparatus includes a multichannel audio down-mixer for receiving a multichannel audio signal and transforming the received multichannel audio signal to a down-mixed audio signal and an auxiliary signal, and a super frame generator for generating a super frame auxiliary signal by combining a plurality of auxiliary signal frames.

    9.
    发明专利
    未知

    公开(公告)号：AT496364T

    公开(公告)日：2011-02-15

    申请号：AT07708760

    申请日：2007-02-05

    Applicant: KOREA ELECTRONICS TELECOMM ,  SEOUL NAT UNIV IND FOUNDATION

    Inventor： SEO JEONG-IL ,  BEACK SEUNG-KWON ,  JANG IN-SEON ,  KANG KYEONG-OK ,  HONG JIN-WOO ,  CHOI IN-YONG ,  CHON SANG-BAE ,  SUNG KOENG-MO

    IPC: G10L19/00 ,  G10L19/008 ,  G10L25/69

    Abstract: There is an apparatus for evaluating the audio quality of a multi-channel audio codec, including: a preprocessing unit for synthesizing binaural signals based on multi-channel audio signals transmitted through a multi-channel of a multi-channel audio reproduction system; an output variable calculator for calculating an interaural cross-correlation coefficient distortion (IACCDist) and other output variables of the binaural signals; and an artificial neural network circuit for outputting a grade of the perceived quality based on the interaural cross-correlation coefficient distortion (IACCDist) and other output variables calculated in the output variable calculator.

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