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：US11081116B2

公开(公告)日：2021-08-03

申请号：US16450698

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Shankar Thagadur Shivappa ,  Richard Paul Walters ,  Dipanjan Sen ,  Nils Günther Peters ,  Moo Young Kim

IPC: G10L19/008 ,  G10L19/16 ,  H04R5/02 ,  H04S3/00

Abstract: In general, techniques are described by which to embed enhanced audio transports in backward compatible bitstreams. A device comprising a memory and one or more processors may be configured to perform the techniques. The memory may store the backward compatible bitstream, which conforms to a legacy transport format. The processor(s) may obtain, from the backward compatible bitstream, legacy audio data that conforms to a legacy audio format, and obtain, from the backward compatible bitstream, extended audio data that enhances the legacy audio data. The processor(s) may also obtain, based on the legacy audio data and the extended audio data, enhanced audio data that conforms to an enhanced audio format, and output the enhanced audio data to one or more speakers.

公开(公告)号：US20200013414A1

公开(公告)日：2020-01-09

申请号：US16450698

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Shankar Thagadur Shivappa ,  Richard Paul Walters ,  Dipanjan Sen ,  Nils Günther Peters ,  Moo Young Kim

IPC: G10L19/008 ,  G10L19/16 ,  H04R5/02 ,  H04S3/00

Abstract: In general, techniques are described by which to embed enhanced audio transports in backward compatible bitstreams. A device comprising a memory and one or more processors may be configured to perform the techniques. The memory may store the backward compatible bitstream, which conforms to a legacy transport format. The processor(s) may obtain, from the backward compatible bitstream, legacy audio data that conforms to a legacy audio format, and obtain, from the backward compatible bitstream, extended audio data that enhances the legacy audio data. The processor(s) may also obtain, based on the legacy audio data and the extended audio data, enhanced audio data that conforms to an enhanced audio format, and output the enhanced audio data to one or more speakers.

公开(公告)号：US09536531B2

公开(公告)日：2017-01-03

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: G10L19/00 ,  G10L19/12 ,  G10L15/04 ,  G10L19/008 ,  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 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：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。