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    ENCODING AND DECODING METHOD USING VARIABLE SUBBAND ANALYSIS AND APPARATUS THEREOF
    1.
    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。

    MULTI-OBJECT AUDIO ENCODING AND DECODING APPARATUS SUPPORTING POST DOWN-MIX SIGNAL
    7.
    发明公开
    MULTI-OBJECT AUDIO ENCODING AND DECODING APPARATUS SUPPORTING POST DOWN-MIX SIGNAL 有权
    TONKODIERUNGS- UND DEKODIERUNGSVERFAHREN MIT MEHREREN OBJEKTEN UNDUNTERSTÜTZUNGVON POST-DOWN-MISCHSIGNALEN

    公开(公告)号：EP2320415A4

    公开(公告)日：2012-09-05

    申请号：EP09798132

    申请日：2009-07-16

    Applicant: KOREA ELECTRONICS TELECOMM

    Inventor： SEO JEONGIL ,  BEACK SEUNGKWON ,  KANG KYEONGOK ,  HONG JINWOO ,  KIM JINWOONG ,  AHN CHIETEUK ,  KIM KWANGKI ,  HAHN MINSOO

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

    CPC classification number: G10L19/20 ,  G10L19/008

    Abstract: A multi-object audio encoding and decoding apparatus supporting a post downmix signal may be provided. The multi-object audio encoding apparatus may include: an object information extraction and downmix generation unit to generate object information and a dowmnix signal from input object signals; a parameter determination unit to determine a downmix information parameter using the extracted downmix signal and the post downmix signal; and a bitstream generation unit to combine the object information and the downmix information parameter, and to generate an object bitstream.

    Abstract translation: 可以提供支持后降混信号的多对象音频编码和解码装置。 多对象音频编码装置可以包括：对象信息提取和下混合生成单元，用于从输入对象信号生成对象信息和后同步信号; 参数确定单元，用于使用提取的下混合信号和后降混信号确定下混信息参数; 以及比特流生成单元，用于组合对象信息和下混信息参数，并生成对象比特流。

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