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公开(公告)号：US20150264483A1
公开(公告)日：2015-09-17
申请号：US14656210
申请日：2015-03-12
Applicant: QUALCOMM Incorporated
Inventor： Martin James Morrell , Nils Günther Peters , Dipanjan Sen
CPC classification number: H04R5/02 , G10L19/08 , H04S3/02 , H04S2400/15 , H04S2420/11
Abstract: In general, techniques are described for low frequency rendering of higher-order ambisonic audio data. As an example, a device comprising a memory and a processor may perform the techniques. The memory may be configured to store higher-order ambisonic coefficients. The processor may be configured to obtain a renderer to be used when rendering the higher-order ambisonic coefficients into a speaker feed for a low frequency speaker.
Abstract translation: 一般来说，描述了用于低阶环绕声音频数据的低频渲染的技术。 作为示例，包括存储器和处理器的设备可以执行这些技术。 存储器可以被配置为存储高阶ambisonic系数。 处理器可以被配置为获得在将较高阶的Ambisonic系数渲染到用于低频扬声器的扬声器馈送中时使用的渲染器。
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公开(公告)号：US20140355796A1
公开(公告)日：2014-12-04
申请号：US14288293
申请日：2014-05-27
Applicant: QUALCOMM Incorporated
Inventor： Pei Xiang , Dipanjan Sen , Nils Günther Peters , Martin James Morrell
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 comprising one or more processors is configured to determine a plurality of segments for each of a plurality of binaural room impulse response filters, wherein each of the plurality of binaural room impulse response filters comprises a residual room response segment and at least one direction-dependent segment for which a filter response depends on a location within a sound field; transform each of at least one direction-dependent segment of the plurality of binaural room impulse response filters to a domain corresponding to a domain of a plurality of hierarchical elements to generate a plurality of transformed binaural room impulse response filters, wherein the plurality of hierarchical elements describe a sound field; and perform a fast convolution of the plurality of transformed binaural room impulse response filters and the plurality of hierarchical elements to render the sound field.
Abstract translation: 包括一个或多个处理器的设备被配置为为多个双耳室脉冲响应滤波器中的每一个确定多个段，其中所述多个双耳室脉冲响应滤波器中的每一个包括残余房间响应段和至少一个方向 - 滤波器响应取决于声场内的位置; 将所述多个双耳室脉冲响应滤波器中的至少一个方向依赖片段中的每一个变换为与多个分层元件的域对应的域，以生成多个经变换的双耳房间脉冲响应滤波器，其中所述多个分级元件 描述一个声场; 并且执行多个经变换的双耳室脉冲响应滤波器和多个分层元件的快速卷积以呈现声场。
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公开(公告)号：US20140355770A1
公开(公告)日：2014-12-04
申请号：US14289549
申请日：2014-05-28
Applicant: QUALCOMM Incorporated
Inventor： Nils Günther Peters , Dipanjan Sen , Martin James Morrell
IPC: G10L19/008 , H04S3/00 , H04R29/00 , G10L19/032 , G06F17/16
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 one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients.
Abstract translation: 通常，描述了用于获得描述声场的不同分量的一个或多个第一矢量的技术，以及描述声场的背景分量的一个或多个第二矢量，一个或多个第一矢量和至少由 执行关于多个球谐函数的变换。
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公开(公告)号：US20140355766A1
公开(公告)日：2014-12-04
申请号：US14289602
申请日：2014-05-28
Applicant: QUALCOMM Incorporated
Inventor： Martin James Morrell , Dipanjan Sen , Nils Günther Peters
IPC: H04S5/00
CPC classification number: G10L19/008 , H04S7/30 , H04S7/304 , H04S2400/01 , H04S2420/01 , H04S2420/11
Abstract: A device comprising one or more processors is configured to obtain transformation information, the transformation information describing how a sound field was transformed to reduce a number of a plurality of hierarchical elements to a reduced plurality of hierarchical elements; and perform binaural audio rendering with respect to the reduced plurality of hierarchical elements based on the transformation information.
Abstract translation: 包括一个或多个处理器的设备被配置为获得变换信息，所述变换信息描述如何变换声场以将多个分层元素的数量减少到减少的多个分层元素; 并且基于变换信息对所减少的多个分层元素执行双耳音频呈现。
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公开(公告)号：US20140226823A1
公开(公告)日：2014-08-14
申请号：US14174769
申请日：2014-02-06
Applicant: QUALCOMM Incorporated
Inventor： Dipanjan Sen , Martin James Morrell , Nils Günther Peters
IPC: H04S5/00
CPC classification number: H04S7/30 , G10L19/008 , G10L19/167 , H04S7/301 , H04S7/308 , H04S2420/03 , H04S2420/11
Abstract: In general, techniques are described for specifying audio rendering information in a bitstream. A device configured to generate the bitstream may perform various aspects of the techniques. The bitstream generation device may comprise one or more processors configured to specify audio rendering information that includes a signal value identifying an audio renderer used when generating the multi-channel audio content. A device configured to render multi-channel audio content from a bitstream may also perform various aspects of the techniques. The rendering device may comprise one or more processors configured to determine audio rendering information that includes a signal value identifying an audio renderer used when generating the multi-channel audio content, and render a plurality of speaker feeds based on the audio rendering information.
Abstract translation: 通常，描述了用于在比特流中指定音频呈现信息的技术。 被配置为生成比特流的设备可以执行该技术的各个方面。 比特流生成装置可以包括一个或多个处理器，其被配置为指定音频呈现信息，其包括识别当生成多声道音频内容时使用的音频渲染器的信号值。 被配置为从比特流呈现多声道音频内容的设备还可以执行该技术的各个方面。 渲染设备可以包括一个或多个处理器，其被配置为确定音频呈现信息，该音频呈现信息包括识别在生成多声道音频内容时使用的音频渲染器的信号值，以及基于该音频呈现信息呈现多个扬声器馈送。
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Patent Agency Ranking
公开(公告)号：US10178489B2
公开(公告)日：2019-01-08
申请号：US14174769
申请日：2014-02-06
Applicant: QUALCOMM Incorporated
Inventor： Dipanjan Sen , Martin James Morrell , Nils Günther Peters
IPC: H04S5/00 , H04S7/00 , G10L19/16 , G10L19/008
Abstract: In general, techniques are described for specifying audio rendering information in a bitstream. A device configured to generate the bitstream may perform various aspects of the techniques. The bitstream generation device may comprise one or more processors configured to specify audio rendering information that includes a signal value identifying an audio renderer used when generating the multi-channel audio content. A device configured to render multi-channel audio content from a bitstream may also perform various aspects of the techniques. The rendering device may comprise one or more processors configured to determine audio rendering information that includes a signal value identifying an audio renderer used when generating the multi-channel audio content, and render a plurality of speaker feeds based on the audio rendering information.
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公开(公告)号：US09883312B2
公开(公告)日：2018-01-30
申请号：US14289549
申请日：2014-05-28
Applicant: QUALCOMM Incorporated
Inventor： Nils Günther Peters , Dipanjan Sen , Martin James Morrell
IPC: H04R5/00 , H04S5/00 , G10L19/008 , G06F17/16 , G10L19/06 , G10L25/18 , H04S7/00 , G10L19/002 , G10L19/038 , G10L19/02 , G10L19/16 , G10L19/20 , G10L19/00
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 one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients.
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公开(公告)号：US09870778B2
公开(公告)日：2018-01-16
申请号：US15451087
申请日：2017-03-06
Applicant: QUALCOMM Incorporated
Inventor： Nils Günther Peters , Dipanjan Sen , Martin James Morrell
CPC classification number: G10L19/008 , G10L19/167 , H04S3/008 , H04S3/02 , 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 sparseness information indicative of a sparseness of a matrix used to render the higher order ambisonic coefficients to a plurality of speaker feeds. The memory may be configured to store the sparseness information.
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公开(公告)号：US09838819B2
公开(公告)日：2017-12-05
申请号：US14789961
申请日：2015-07-01
Applicant: QUALCOMM Incorporated
Inventor： Nils Günther Peters , Dipanjan Sen , Martin James Morrell
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.
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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。
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