公开(公告)号：US09466305B2

公开(公告)日：2016-10-11

申请号：US14288320

申请日：2014-05-27

Applicant: QUALCOMM Incorporated

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

IPC: G10L19/00 ,  G10L21/00 ,  G10L21/04 ,  G10L19/02 ,  G10L19/008

CPC classification number: G10L19/02 ,  G10L19/008 ,  H04S2420/11

Abstract: In general, techniques are described for performing a positional analysis to code audio data. Typically, this audio data comprises a hierarchical representation of a soundfield and may include, as one example, spherical harmonic coefficients (which may also be referred to as higher-order ambisonic coefficients). An audio compression device that includes one or more processors may perform the techniques. The processors may be configured to allocate bits to one or more portions of the audio data, at least in part by performing positional analysis on the audio data.

Abstract translation: 通常，描述了用于执行位置分析以编码音频数据的技术。 通常，该音频数据包括声场的分级表示，并且可以包括球谐函数（其也可以被称为高阶ambisonic系数）作为一个示例。 包括一个或多个处理器的音频压缩设备可以执行这些技术。 处理器可以被配置为至少部分地通过对音频数据执行位置分析来将比特分配给音频数据的一个或多个部分。

公开(公告)号：US20160104495A1

公开(公告)日：2016-04-14

申请号：US14878948

申请日：2015-10-08

Applicant: QUALCOMM Incorporated

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

IPC: G10L19/008 ,  H04S7/00 ,  G10L19/032 ,  H04S3/00

CPC classification number: G10L19/008 ,  G10L19/032 ,  H04S3/008 ,  H04S7/301 ,  H04S7/302 ,  H04S2420/11

Abstract: This disclosure describes techniques for coding of higher-order ambisonics audio data comprising at least one higher-order ambisonic (HOA) coefficient corresponding to a spherical harmonic basis function having an order greater than one. This disclosure describes techniques for adjusting HOA soundfields to potentially improve spatial alignment of the acoustic elements to the visual component in a mixed audio/video reproduction scenario. In one example, a device for rendering an HOA audio signal includes one or more processors configured to render the HOA audio signal over one or more speakers based on one or more field of view (FOV) parameters of a reference screen and one or more FOV parameters of a viewing window.

Abstract translation: 本公开描述了用于编码包括与具有大于1的阶数的球面谐波基函数相对应的至少一个高阶环比（HOA）系数的高阶有源音频数据的技术。 本公开描述了用于调整HOA声场以在混合音频/视频再现场景中潜在地改善声学元件与视觉分量的空间对准的技术。 在一个示例中，用于呈现HOA音频信号的设备包括一个或多个处理器，其被配置为基于参考屏幕的一个或多个视场（FOV）参数和一个或多个FOV来呈现一个或多个扬声器上的HOA音频信号 查看窗口的参数。

公开(公告)号：US20160035386A1

公开(公告)日：2016-02-04

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: G11B27/031 ,  G06F3/0484

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.

Abstract translation: 通常，描述了用于高阶ambisonic音频数据的音频编辑的技术。 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音频对象的更高阶的Ambisonic（HOA）表示。 一个或多个处理器可以被配置为通过将与音频对象相关联的一个或多个球面谐波（SH）基函数存储到缓冲器来将源尾添加到音频对象的HOA表示。

公开(公告)号：US20160035356A1

公开(公告)日：2016-02-04

申请号：US14670029

申请日：2015-03-26

Applicant: QUALCOMM INCORPORATED

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

IPC: G10L19/008

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 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 spherical harmonic (SH) basis functions. The one or more processors may be configured to manipulate the SH basis functions associated with higher order ambisonics coefficients to alter a direction of an audio object represented by the higher order ambisonics coefficients.

Abstract translation: 一般来说，描述了用于编辑高阶ambisonic音频数据的技术。 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球面谐波（SH）基函数。 一个或多个处理器可以被配置为操纵与较高阶的对数系数相关联的SH基函数，以改变由高阶有向系数表示的音频对象的方向。

公开(公告)号：US20140358557A1

公开(公告)日：2014-12-04

申请号：US14288320

申请日：2014-05-27

Applicant: QUALCOMM Incorporated

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

IPC: G10L19/02

CPC classification number: G10L19/02 ,  G10L19/008 ,  H04S2420/11

Abstract: In general, techniques are described for performing a positional analysis to code audio data. Typically, this audio data comprises a hierarchical representation of a soundfield and may include, as one example, spherical harmonic coefficients (which may also be referred to as higher-order ambisonic coefficients). An audio compression device that includes one or more processors may perform the techniques. The processors may be configured to allocate bits to one or more portions of the audio data, at least in part by performing positional analysis on the audio data.

Abstract translation: 通常，描述了用于执行位置分析以编码音频数据的技术。 通常，该音频数据包括声场的分级表示，并且可以包括球谐函数（其也可以被称为高阶ambisonic系数）作为一个示例。 包括一个或多个处理器的音频压缩设备可以执行这些技术。 处理器可以被配置为至少部分地通过对音频数据执行位置分析来将比特分配给音频数据的一个或多个部分。