公开(公告)号：US09495968B2

公开(公告)日：2016-11-15

申请号：US14289174

申请日：2014-05-28

Applicant: QUALCOMM Incorporated

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

IPC: G10L19/00 ,  G10L21/00 ,  G10L21/04 ,  G10L19/008 ,  G06F17/16 ,  G10L19/06 ,  G10L25/18 ,  H04S5/00 ,  H04S7/00 ,  G10L19/002 ,  G10L19/038 ,  G10L19/02

CPC classification number: H04S5/005 ,  G06F17/16 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/038 ,  G10L19/06 ,  G10L19/167 ,  G10L19/20 ,  G10L25/18 ,  G10L2019/0001 ,  G10L2019/0005 ,  H04R2205/021 ,  H04S7/30 ,  H04S7/304 ,  H04S7/40 ,  H04S2400/01 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for obtaining an indication of whether spherical harmonic coefficients are representative of a synthetic audio object. In accordance with the techniques, a device comprising one or more processors may be configured to obtain an indication of whether spherical harmonic coefficients representative of a sound field are generated from a synthetic audio object.

Abstract translation: 通常，描述用于获得球面谐波系数是否代表合成音频对象的指示的技术。 根据这些技术，包括一个或多个处理器的装置可以被配置为获得是否从合成音频对象产生表示声场的球面谐波系数的指示。

公开(公告)号：US09466302B2

公开(公告)日：2016-10-11

申请号：US14479752

申请日：2014-09-08

Applicant: QUALCOMM Incorporated

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

IPC: H04R5/00 ,  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。

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。

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。

公开(公告)号：US20140355794A1

公开(公告)日：2014-12-04

申请号：US14288276

申请日：2014-05-27

Applicant: QUALCOMM Incorporated

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

IPC: H04S7/00

CPC classification number: H04S7/305 ,  G10K15/12 ,  G10L19/008 ,  H04S1/002 ,  H04S1/005 ,  H04S3/004 ,  H04S5/00 ,  H04S7/306 ,  H04S7/307 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/07 ,  H04S2420/11

Abstract: A device comprises one or more processors configured to apply a binaural room impulse response filter to spherical harmonic coefficients representative of a sound field in three dimensions so as to render the sound field.

Abstract translation: 一种装置包括一个或多个处理器，其被配置为对三声道的声场施加双耳室脉冲响应滤波器，以便呈现声场。

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。

公开(公告)号：US10070094B2

公开(公告)日：2018-09-04

申请号：US15290223

申请日：2016-10-11

Applicant: QUALCOMM Incorporated

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

IPC: H04R5/02 ,  H04N5/60 ,  H04S7/00 ,  G06F3/16 ,  G10L19/26 ,  G10L19/008

Abstract: Systems and techniques for rendering audio data are generally disclosed. An example device for rendering a higher order ambition (HOA) audio signal includes a memory configured to store the HOA audio signal, and one or more processors coupled to the memory. The one or more processors are configured to perform a loudness compensation process as part of generating an effect matrix. The one or more processors are further configured to render the HOA audio signal based on the effect matrix.

公开(公告)号：US09736609B2

公开(公告)日：2017-08-15

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 ,  H04S7/00

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.

公开(公告)号：US09736606B2

公开(公告)日：2017-08-15

申请号：US14670074

申请日：2015-03-26

Applicant: QUALCOMM Incorporated

Inventor： Martin James Morrell ,  Pei Xiang ,  Richard Paul Walters ,  Nils Günther Peters ,  Dipanjan Sen

IPC: H04S3/00 ,  G10L19/008 ,  G11B20/10 ,  H04H20/89 ,  H04N21/439 ,  H04N21/233 ,  G06F3/0484 ,  G11B27/031

CPC classification number: H04S3/008 ,  G06F3/04842 ,  G10L19/008 ,  G11B20/10527 ,  G11B27/031 ,  H04H20/89 ,  H04N21/233 ,  H04N21/4392 ,  H04N21/4398

Abstract: In general, techniques are described for audio editing of higher-order ambisonic audio data. 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 higher order ambisonic (HOA) representation of the audio object. The one or more processors may be configured to add a source tail to the HOA representation of the audio object by storing one or more spherical harmonic (SH) basis functions associated with the audio object to a buffer.

公开(公告)号：US20160007132A1

公开(公告)日：2016-01-07

申请号：US14789961

申请日：2015-07-01

Applicant: QUALCOMM Incorporated

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

IPC: H04S5/00

CPC classification number: H04S5/00 ,  G10L19/008 ,  H04R5/04 ,  H04S3/008 ,  H04S2420/11

Abstract: In general, techniques are described for compression and decoding of audio data are generally disclosed. An example device for compressing audio data includes one or more processors configured to apply a decorrelation transform to ambient ambisonic coefficients to obtain a decorrelated representation of the ambient ambisonic coefficients, the ambient HOA coefficients having been extracted from a plurality of higher order ambisonic coefficients and representative of a background component of a soundfield described by the plurality of higher order ambisonic coefficients, wherein at least one of the plurality of higher order ambisonic coefficients is associated with a spherical basis function having an order greater than one.

Abstract translation: 一般来说，描述了音频数据的压缩和解码技术。 用于压缩音频数据的示例性设备包括一个或多个处理器，其被配置为将去相关变换应用于周围环境系数，以获得周围环境系数的解相关表示，已经从多个较高阶的对数系数中提取了环境HOA系数，并且具有代表性 由所述多个高次数散度系数描述的声场的背景分量，其中所述多个高次数散度系数中的至少一个与具有大于1的阶数的球面基函数相关联。