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    SIGNALING CHANNELS FOR SCALABLE CODING OF HIGHER ORDER AMBISONIC AUDIO DATA
    142.
    发明申请
    SIGNALING CHANNELS FOR SCALABLE CODING OF HIGHER ORDER AMBISONIC AUDIO DATA 有权
    用于可更新编码高级音频数据的信号通道

    公开(公告)号：US20160104494A1

    公开(公告)日：2016-04-14

    申请号：US14878729

    申请日：2015-10-08

    Applicant: QUALCOMM Incorporated

    Inventor： Moo Young Kim ,  Nils Günther Peters ,  Dipanjan Sen

    IPC: G10L19/008 ,  H04S7/00

    CPC classification number: G10L19/008 ,  G10L19/167 ,  H04S7/30 ,  H04S2420/11

    Abstract: In general, techniques are described for signaling channels for scalable coding of higher order ambisonic audio data. A device comprising a memory and a processor may be configured to perform the techniques. The memory may be configured to store the bitstream. The processor may be configured to obtain, from the bitstream, an indication of a number of channels specified in one or more layers in the bitstream, and obtain the channels specified in the one or more layers in the bitstream based on the indication of the number of channels.

    Abstract translation: 通常，描述了用于信令信道的技术，用于可升级编码高阶ambisonic音频数据。 包括存储器和处理器的装置可以被配置为执行这些技术。 存储器可以被配置为存储比特流。 处理器可以被配置为从比特流中获得在比特流中的一个或多个层中指定的频道数量的指示，并且基于数字的指示来获得在比特流中的一个或多个层中指定的频道 的渠道。

    OBTAINING SYMMETRY INFORMATION FOR HIGHER ORDER AMBISONIC AUDIO RENDERERS
    143.
    发明申请
    OBTAINING SYMMETRY INFORMATION FOR HIGHER ORDER AMBISONIC AUDIO RENDERERS 有权
    获得更高级别的有声音乐录音机的对话信息

    公开(公告)号：US20150341736A1

    公开(公告)日：2015-11-26

    申请号：US14724615

    申请日：2015-05-28

    Applicant: QUALCOMM Incorporated

    Inventor： Nils Günther Peters ,  Dipanjan Sen ,  Martin James Morrell

    IPC: H04S5/00

    CPC classification number: H04S3/02 ,  G10L19/008 ,  H04S7/30 ,  H04S7/301 ,  H04S2420/03 ,  H04S2420/11

    Abstract: In general, techniques are described for obtaining audio rendering information in a bitstream. A device configured to render higher order ambisonic coefficients comprising a processor and a memory may perform the techniques. The processor may be configured to obtain sign symmetry information indicative of sign symmetry of a matrix used to render the higher order ambisonic coefficients to generate a plurality of speaker feeds. The memory may be configured to store the sparseness information.

    Abstract translation: 通常，描述了用于在比特流中获得音频呈现信息的技术。 被配置为呈现包括处理器和存储器的更高阶的Ambisonic系数的设备可以执行这些技术。 处理器可以被配置为获得指示用于渲染高阶ambisonic系数的矩阵的符号对称性的符号对称信息，以产生多个说话者馈送。 存储器可以被配置为存储稀疏信息。

    CODING OF SPHERICAL HARMONIC COEFFICIENTS
    144.
    发明申请
    CODING OF SPHERICAL HARMONIC COEFFICIENTS 有权
    球形谐波系数的编码

    公开(公告)号：US20150071447A1

    公开(公告)日：2015-03-12

    申请号：US14479752

    申请日：2014-09-08

    Applicant: QUALCOMM Incorporated

    Inventor： Dipanjan Sen ,  Nils Günther Peters ,  Martin James Morrell

    IPC: G10L19/008

    CPC classification number: G10L19/008

    Abstract: In general, techniques are described for coding of spherical harmonic coefficients representative of a three dimensional soundfield. A device comprising a memory and one or more processors may be configured to perform the techniques. The memory may be configured to store a plurality of spherical harmonic coefficients. The one or more processors may be configured to perform an energy analysis with respect to the plurality of spherical harmonic coefficients to determine a reduced version of the plurality of spherical harmonic coefficients.

    Abstract translation: 通常，描述了代表三维声场的球谐函数的编码技术。 包括存储器和一个或多个处理器的设备可以被配置为执行这些技术。 存储器可以被配置为存储多个球谐函数。 一个或多个处理器可以被配置为执行关于多个球谐函数的能量分析以确定多个球谐函数的简化版本。

    DETERMINING RENDERERS FOR SPHERICAL HARMONIC COEFFICIENTS
    148.
    发明申请
    DETERMINING RENDERERS FOR SPHERICAL HARMONIC COEFFICIENTS 有权
    确定球形谐波系数的渲染器

    公开(公告)号：US20140219456A1

    公开(公告)日：2014-08-07

    申请号：US14174784

    申请日：2014-02-06

    Applicant: QUALCOMM Incorporated

    Inventor： Martin James Morrell ,  Nils Günther Peters ,  Dipanjan Sen

    IPC: H04S5/00

    CPC classification number: H04S5/00 ,  H04S7/30 ,  H04S7/301 ,  H04S2400/11 ,  H04S2420/11

    Abstract: In general, techniques are described for determining renderers used for rendering spherical harmonic coefficients to generate one or more loudspeaker signals. A device comprising one or more processors may perform the techniques. The one or more processors may be configured to determine a local speaker geometry of one or more speakers used for playback of spherical harmonic coefficients representative of a sound field, and configure the device to operate based on the local speaker geometry.

    Abstract translation: 通常，描述了用于确定用于渲染球谐函数以产生一个或多个扬声器信号的渲染器的技术。 包括一个或多个处理器的设备可以执行这些技术。 一个或多个处理器可以被配置为确定用于播放代表声场的球谐函数的一个或多个扬声器的本地扬声器几何形状，并且将该设备配置为基于本地扬声器几何形状进行操作。

    SCALABLE DOWNMIX DESIGN FOR OBJECT-BASED SURROUND CODEC WITH CLUSTER ANALYSIS BY SYNTHESIS
    150.
    发明申请
    SCALABLE DOWNMIX DESIGN FOR OBJECT-BASED SURROUND CODEC WITH CLUSTER ANALYSIS BY SYNTHESIS 有权
    基于对象的环绕编解码器的可缩放下载设计，通过合成进行聚类分析

    公开(公告)号：US20140023197A1

    公开(公告)日：2014-01-23

    申请号：US13945811

    申请日：2013-07-18

    Applicant: QUALCOMM Incorporated

    Inventor： Pei Xiang ,  Dipanjan Sen ,  Kerry Titus Hartman

    IPC: H04S1/00

    CPC classification number: H04S1/007 ,  G10L19/008 ,  G10L19/22 ,  G10L19/24 ,  H04S3/008 ,  H04S7/30 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/03 ,  H04S2420/11

    Abstract: In general, techniques are described for grouping audio objects into clusters. In some examples, a device for audio signal processing comprises a cluster analysis module configured to, based on a plurality of audio objects, produce a first grouping of the plurality of audio objects into L clusters, wherein the first grouping is based on spatial information from at least N among the plurality of audio objects and L is less than N. The device also includes an error calculator configured to calculate an error of the first grouping relative to the plurality of audio objects, wherein the error calculator is further configured to, based on the calculated error, produce a plurality L of audio streams according to a second grouping of the plurality of audio objects into L clusters that is different from the first grouping.

    Abstract translation: 一般来说，描述了将音频对象分组成簇的技术。 在一些示例中，用于音频信号处理的设备包括：聚类分析模块，被配置为基于多个音频对象产生所述多个音频对象的第一分组为L个群集，其中所述第一分组基于来自 多个音频对象中的至少N个，L小于N.该设备还包括错误计算器，其被配置为计算相对于多个音频对象的第一分组的错误，其中，误差计算器还被配置为基于 在计算出的误差上，根据与第一分组不同的多个音频对象的第二分组，产生多个音频流。

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