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    SIGNALING CHANNELS FOR SCALABLE CODING OF HIGHER ORDER AMBISONIC AUDIO DATA
    3.
    发明公开
    SIGNALING CHANNELS FOR SCALABLE CODING OF HIGHER ORDER AMBISONIC AUDIO DATA 审中-公开
    信号通道用于高阶笛音音频数据的可扩展编码

    公开(公告)号：EP3204942A1

    公开(公告)日：2017-08-16

    申请号：EP15788498.2

    申请日：2015-10-09

    申请人： Qualcomm Incorporated

    发明人： KIM, Moo Young ,  PETERS, Nils Günther ,  SEN, Dipanjan

    IPC分类号： G10L19/008 ,  G10L19/16

    摘要： 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.

    摘要翻译： 通常，描述了用于高阶非立体声音频数据的可伸缩编码的信令信道的技术。 包括存储器和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比特流。 处理器可以被配置为从比特流获得在比特流中的一个或多个层中指定的多个信道的指示，并且基于该数量的指示获得在比特流中的一个或多个层中指定的信道 的渠道。

    RECONSTRUCTION OF VECTORS DECOMPOSED FROM HIGHER-ORDER AMBISONICS AUDIO SIGNALS
    6.
    发明授权
    RECONSTRUCTION OF VECTORS DECOMPOSED FROM HIGHER-ORDER AMBISONICS AUDIO SIGNALS 有权

    公开(公告)号：EP3143614B1

    公开(公告)日：2018-12-05

    申请号：EP15725955.7

    申请日：2015-05-15

    申请人： QUALCOMM Incorporated

    发明人： KIM, Moo Young ,  PETERS, Nils Günther ,  SEN, Dipanjan

    IPC分类号： G10L19/038 ,  G10L19/00 ,  G10L19/008

    CPC分类号： G10L19/038 ,  G10L19/008 ,  G10L2019/0001

    摘要： In general, techniques are described for coding of vectors decomposed from higher order ambisonic coefficients. A device comprising a processor and a memory may perform the techniques. The processor may be configured to obtain from a bitstream data indicative of a plurality of weight values that represent a vector that is included in a decomposed version of the plurality of HOA coefficients. Each of the weight values may correspond to a respective one of a plurality of weights in a weighted sum of code vectors that represents the vector and that includes a set of code vectors. The processor may further be configured to reconstruct the vector based on the weight values and the code vectors. The memory may be configured to store the reconstructed vector.

    CODING HIGHER-ORDER AMBISONIC COEFFICIENTS DURING MULTIPLE TRANSITIONS
    7.
    发明公开
    CODING HIGHER-ORDER AMBISONIC COEFFICIENTS DURING MULTIPLE TRANSITIONS 审中-公开

    公开(公告)号：EP3363213A1

    公开(公告)日：2018-08-22

    申请号：EP16784721.9

    申请日：2016-10-12

    申请人： Qualcomm Incorporated

    发明人： PETERS, Nils Günther ,  SEN, Dipanjan ,  KIM, Moo Young

    IPC分类号： H04S3/02 ,  G10L19/008

    CPC分类号： H04S5/00 ,  G10L19/008 ,  H04R2499/15 ,  H04S3/02 ,  H04S2400/01 ,  H04S2420/11

    摘要： In general, techniques are described for coding higher-order ambisonic coefficients during multiple transitions. A device comprising a processor and a memory coupled to the processor may be configured to perform the techniques. The processor may be configured to obtain a multi-transition indication of whether an ambient HOA coefficient is in transition during a same frame of the bitstream as a foreground audio signal is in transition. The processor may also be configured to obtain a vector that describes a spatial characteristic of a corresponding foreground audio signal based on the multi-transition indication, both the vector and the corresponding HOA audio signal decomposed from the HOA audio data. The memory may be configured to store the vector.

    CONVERSION FROM OBJECT-BASED AUDIO TO HOA
    8.
    发明公开
    CONVERSION FROM OBJECT-BASED AUDIO TO HOA 审中-公开

    公开(公告)号：EP3360343A1

    公开(公告)日：2018-08-15

    申请号：EP16774760.9

    申请日：2016-09-16

    申请人： Qualcomm Incorporated

    发明人： KIM, Moo Young ,  SEN, Dipanjan

    IPC分类号： H04S3/02 ,  G10L19/008

    摘要： A device obtains an object-based representation of an audio signal of an audio object. The audio signal corresponds to a time interval. Additionally, the device obtains a representation of a spatial vector for the audio object, wherein the spatial vector is defined in a Higher-Order Ambisonics (HOA) domain and is based on a first plurality of loudspeaker locations. The device generates, based on the audio signal of the audio object and the spatial vector, a plurality of audio signals. Each respective audio signal of the plurality of audio signals corresponds to a respective loudspeaker in a plurality of local loudspeakers at the second plurality of loudspeaker locations different from the first plurality of loudspeaker locations.

    SWITCHING BETWEEN PREDICTIVE AND NON-PREDICTIVE QUANTIZATION TECHNIQUES IN A HIGHER ORDER AMBISONICS (HOA) FRAMEWORK
    9.
    发明公开
    SWITCHING BETWEEN PREDICTIVE AND NON-PREDICTIVE QUANTIZATION TECHNIQUES IN A HIGHER ORDER AMBISONICS (HOA) FRAMEWORK 有权
    高阶积分（HOA）框架中预测与非预测量化技术之间的切换

    公开(公告)号：EP3198595A1

    公开(公告)日：2017-08-02

    申请号：EP15778807.6

    申请日：2015-09-21

    申请人： Qualcomm Incorporated

    发明人： KIM, Moo Young ,  PETERS, Nils Günther

    IPC分类号： G10L19/038 ,  G10L19/008 ,  H04R5/00 ,  G10L19/08 ,  G10L19/002

    CPC分类号： G10L19/038 ,  G10L19/008 ,  H04R2205/021 ,  H04R2499/11 ,  H04R2499/13 ,  H04S3/008 ,  H04S7/308 ,  H04S2400/15 ,  H04S2420/11

    摘要： A device comprising a memory and one or more processors may be configured extract, from the bitstream, a type of quantization mode. The one or more processors may also be configured to switch, based on the type of quantization mode, between non-predictive vector dequantization to reconstruct a first set of one or more weights used to approximate the multi-directional V-Vector in the higher order ambisonics domain, and predictive vector dequantization to reconstruct a second set of one or more weights used to approximate the multi-directional V-Vector in the higher order ambisonics domain. The memory may be configured to store the reconstructed first set of one or more weights used to approximate the multi-directional V-Vector in the higher order ambisonics domain, and the reconstructed second set of one or more weights used to approximate the multi-directional V-Vector in the higher order ambisonics domain.

    摘要翻译： 包括存储器和一个或多个处理器的设备可以被配置为从比特流提取一种量化模式。 该一个或多个处理器还可以被配置为基于量化模式的类型在非预测矢量反量化之间切换以重建用于近似高阶多方向V矢量的一个或多个权重的第一集合 ambisonics域以及预测矢量反量化以重构用于近似高阶混响法域中的多向V-矢量的第二组一个或多个权重。 存储器可以被配置为存储用于近似高阶混响法域中的多向V-向量的重建的第一组一个或多个权重，并且重建的第二组一个或多个权重用于近似多向 V-Vector在更高阶的Ambisonics域中。

    CLOSED LOOP QUANTIZATION OF HIGHER ORDER AMBISONIC COEFFICIENTS
    10.
    发明公开
    CLOSED LOOP QUANTIZATION OF HIGHER ORDER AMBISONIC COEFFICIENTS 审中-公开
    闭环循环伏安

    公开(公告)号：EP3143618A1

    公开(公告)日：2017-03-22

    申请号：EP15727503.3

    申请日：2015-05-15

    申请人： Qualcomm Incorporated

    发明人： KIM, Moo Young ,  PETERS, Nils Günther ,  SEN, Dipanjan

    IPC分类号： G10L19/032 ,  G10L19/20 ,  G10L19/008

    摘要： In general, techniques are described for closed loop quantization of HOA coefficients that provide a three-dimensional representation of the sound field. An audio encoding device may perform closed loop quantization of an audio object based at least in part on a result of performing quantization of directional information associated with the audio object. An audio decoding device may obtain an audio object that has been closed loop quantized based at least in part on a result of performing quantization of directional information associated with the audio object, and may dequantize the audio object.

    摘要翻译： 通常，描述了提供声场的三维表示的HOA系数的闭环量化的技术。 音频编码装置可以至少部分地基于与音频对象相关联的方向信息的量化的结果来执行音频对象的闭环量化。 音频解码装置可以至少部分地基于与音频对象相关联的方向信息的量化的结果，获得已被闭环量化的音频对象，并且可以对音频对象进行去量化。