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    컴포트 노이즈 생성 지원
    1.
    发明公开
    컴포트 노이즈 생성 지원 审中-公开

    公开(公告)号：KR20200140353A

    公开(公告)日：2020-12-15

    申请号：KR20207031954

    申请日：2019-04-05

    Applicant: ERICSSON TELEFON AB L M

    Inventor： JANSSON FREDRIK ,  NORVELL ERIK ,  JANSSON TOFTGARD TOMAS

    IPC: G10L19/012 ,  G10L19/00 ,  G10L19/008 ,  G10L19/03 ,  G10L19/04 ,  G10L19/24

    Abstract: 수신노드에서의적어도 2개의오디오채널에대한컴포트노이즈의생성을지원하기위한방법및 송신노드. 이방법은송신노드에의해수행된다. 이방법은적어도 2개의입력오디오채널상의오디오신호들의스펙트럼특성들을결정하는단계및 오디오신호들사이의공간코히런스를결정하는단계를포함한다. 공간코히런스는지각적중요도척도들과연관된다. 공간코히런스의압축된표현은지각적중요도척도들에따라각각의주파수대역내에서의공간코히런스를가중함으로써주파수대역별로결정된다. 수신노드에서의컴포트노이즈의생성을가능하게하기위해스펙트럼특성들및 주파수대역별공간코히런스의압축된표현에관한정보가수신노드에시그널링된다.

    통신 소음 발생 및 통신 소음 발생을 위한 지원
    2.
    发明公开
    통신 소음 발생 및 통신 소음 발생을 위한 지원 审中-公开

    公开(公告)号：KR20200138367A

    公开(公告)日：2020-12-09

    申请号：KR20207031390

    申请日：2019-04-05

    Applicant: ERICSSON TELEFON AB L M

    Inventor： NORVELL ERIK ,  JANSSON FREDRIK

    IPC: G10L19/00 ,  G10L19/008 ,  G10L19/012 ,  G10L19/03 ,  G10L19/04 ,  G10L19/24

    Abstract: 적어도 2개의오디오채널에대한통신소음의발생방법이제공된다. 방법은각각의오디오채널상에서오디오신호간의공간적일관성을결정하는단계를포함하며, 여기서프레임및 주파수대역당적어도하나의공간적일관성값은공간적일관성값의벡터를형성하도록결정된다. 예측된공간적일관성값의벡터는가중인자 JPEGpct00362.jpg73를사용하여조합되는제 1 일관성예측및 제 2 일관성예측의가중된조합에의해형성된다. 방법은수신노드에서적어도 2개의오디오채널에대한통신소음의발생을가능하게하기위해가중인자 JPEGpct00363.jpg73에관한정보를수신노드로시그널링하는단계를포함한다.

    POST-QUANTIZATION GAIN CORRECTION IN AUDIO CODING
    4.
    发明公开
    POST-QUANTIZATION GAIN CORRECTION IN AUDIO CODING 有权
    音频编码中量化后的增益校正

    公开(公告)号：EP2681734A4

    公开(公告)日：2014-11-05

    申请号：EP11860420

    申请日：2011-07-04

    Applicant: ERICSSON TELEFON AB L M

    Inventor： NORVELL ERIK ,  GRANCHAROV VOLODYA

    IPC: G10L19/032 ,  G10L19/083 ,  G10L21/0232

    CPC classification number: G10L19/038 ,  G10L19/032 ,  G10L19/083 ,  G10L21/0232

    Abstract: An apparatus (60) for use in decoding of an audio signal that has been encoded with separate gain and shape representations comprises means (62) for estimating an accuracy measure (A(b)) of the shape representation ( N ( b )), for a frequency band (b), the frequency band (b) comprising plurality of coefficients, wherein the shape has been encoded using a pulse vector coding scheme where pulses may be added on top of each other to form pulses of different height, and the accuracy measure (A(b)) is based on a number of pulses (R(b)) and a height of a maximum pulse (p max (b)), and to determine a gain correction (g c (b)), wherein the gain correction (g c (b)) is determined based on the estimated accuracy measure (A(b)). It also comprises means (64) for adjusting the gain representation ( E ( b )) based on the determined gain correction.

    Abstract translation: 用于对已经用分开的增益和形状表示进行编码的音频解码的增益调节装置（60）包括：精度计（62），被配置为估计形状表示（Ñ（b） ）），并且基于估计的精度测量（A（b））来确定增益校正（gc（b））。 它还包括被配置为基于所确定的增益校正来调整增益表示（Ê（b））的包络调节器（64）。

    ENERGY CONSERVATIVE MULTI-CHANNEL AUDIO CODING
    8.
    发明公开
    ENERGY CONSERVATIVE MULTI-CHANNEL AUDIO CODING 有权
    节能多声道音频CODING

    公开(公告)号：EP2345027A4

    公开(公告)日：2016-10-12

    申请号：EP09819478

    申请日：2009-09-25

    Applicant: ERICSSON TELEFON AB L M

    Inventor： NORVELL ERIK ,  SEHLSTEDT MARTIN ,  TALEB ANISSE

    IPC: G10L19/008

    CPC classification number: G10L19/008

    Abstract: The invention relates to the technical field of audio encoding and/or decoding technologies, and thus concerns an overall encoding procedure and associated decoding procedure. The encoding procedure involves at least two signal encoding processes (S1-S3) operating on signal representations of a set of audio input channels, as well as residual encoding (S7-S8). It also involves a dedicated process (S4-S6) to estimate and encode energies of the audio input channels. Each encoding process is associated with a corresponding decoding process. In the overall decoding procedure the decoded signals from each encoding process are preferably combined such that the output channels are close to the input channels in terms of energy and/or quality. Normally, the combination step also adapts to the possible loss of one or more signal representation in part or in whole, such that the energy and quality is optimized with the signals at hand in the decoder. In this way, the overall quality of the output channels is improved.

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