公开(公告)号：PH12016502120B1

公开(公告)日：2017-01-09

申请号：PH12016502120

申请日：2016-10-24

Applicant: QUALCOMM INC

Inventor： KIM MOO YOUNG ,  PETERS NILS GNTHER ,  SEN DIPANJAN

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

Abstract: 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.

公开(公告)号：AU2015258831A1

公开(公告)日：2016-11-10

申请号：AU2015258831

申请日：2015-05-15

Applicant: QUALCOMM INC

Inventor： KIM MOO YOUNG ,  PETERS NILS GUNTHER ,  SEN DIPANJAN

IPC: G10L19/008

Abstract: In general, techniques are described for performing codebook selection when coding vectors decomposed from higher-order ambisonic coefficients. A device comprising a memory and a processor may perform the techniques. The memory may be configured to store a plurality of codebooks to use when performing vector dequantization with respect to a vector quantized spatial component of a soundfield. The vector quantized spatial component may be obtained through application of a decomposition to a plurality of higher order ambisonic coefficients. The processor may be configured to select one of the plurality of codebooks.

公开(公告)号：HK1215752A1

公开(公告)日：2016-09-09

申请号：HK16103671

申请日：2016-03-30

Applicant: QUALCOMM INC

Inventor： SEN DIPANJAN ,  RYU SANG-UK

IPC: G10L20060101 ,  H04R20060101

公开(公告)号：PH12015502634B1

公开(公告)日：2016-03-07

申请号：PH12015502634

申请日：2015-11-26

Applicant: QUALCOMM INC

Inventor： SEN DIPANJAN ,  RYU SANG-UK

IPC: G10L19/008 ,  G10L19/038 ,  H04R5/00

Abstract: In general, techniques are described for compressing decomposed representations of a sound field. A device comprising one or more processors may be configured to perform the techniques. The one or more processors may be configured to obtain a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.

公开(公告)号：CA2933562A1

公开(公告)日：2015-08-06

申请号：CA2933562

申请日：2015-01-28

Applicant: QUALCOMM INC

Inventor： PETERS NILS GUNTHER ,  SEN DIPANJAN

IPC: G10L19/008

Abstract: In general, techniques are described for transitioning an ambient higher order ambisonic coefficient. A device comprising a memory and a processor may be configured to perform the techniques. The processor may obtain, from a frame of a bitstream of encoded audio data, a bit indicative of a reduced vector. The reduced vector may represent, at least in part, a spatial component of a sound field. The processor may also obtain, from the frame, a bit indicative of a transition of an ambient higher-order ambisonic coefficient. The ambient higher-order ambisonic coefficient may represent, at least in part, an ambient component of the sound field. The reduced vector may include a vector element associated with the ambient higher-order ambisonic coefficient in transition. The memory may be configured to store the frame of the bitstream.

公开(公告)号：WO2017066300A3

公开(公告)日：2017-05-18

申请号：PCT/US2016056606

申请日：2016-10-12

Applicant: QUALCOMM INC

Inventor： PETERS NILS GÜNTHER ,  MORRELL MARTIN JAMES ,  SEN DIPANJAN

IPC: H04S7/00 ,  G10L19/008

CPC classification number: G10L19/20 ,  G06F3/165 ,  G10L19/008 ,  G10L19/26 ,  H04N5/602 ,  H04R2499/15 ,  H04S7/30 ,  H04S7/307 ,  H04S7/308 ,  H04S2420/11

Abstract: Systems and techniques for rendering audio data are generally disclosed. An example device for rendering a higher order ambisonic (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.

Abstract translation: 通常公开了用于渲染音频数据的系统和技术。 用于渲染较高阶立体声（HOA）音频信号的示例设备包括被配置为存储HOA音频信号的存储器以及耦合到存储器的一个或多个处理器。 一个或多个处理器被配置为执行响度补偿处理作为生成效果矩阵的一部分。 该一个或多个处理器还被配置为基于效果矩阵来呈现HOA音频信号。

公开(公告)号：WO2014134472A3

公开(公告)日：2015-03-19

申请号：PCT/US2014019468

申请日：2014-02-28

Applicant: QUALCOMM INC

Inventor： SEN DIPANJAN ,  MORRELL MARTIN JAMES ,  PETERS NILS GÜNTHER

IPC: G10L19/008 ,  G10L19/16

CPC classification number: G10L19/008 ,  G10L19/018 ,  G10L19/167 ,  G10L19/20 ,  H04S2420/11

Abstract: In general, techniques are described for transforming spherical harmonic coefficients. A device comprising one or more processors may perform the techniques. The processors may be configured to parse the bitstream to determine transformation information describing how the sound field was transformed to reduce a number of the plurality of hierarchical elements that provide information relevant in describing the sound field. The processors may further be configured to, when reproducing the sound field based on those of the plurality of hierarchical elements that provide information relevant in describing the sound field, transform the sound field based on the transformation information to reverse the transformation performed to reduce the number of the plurality of hierarchical elements.

Abstract translation: 一般来说，描述了用于变换球谐函数的技术。 包括一个或多个处理器的设备可以执行这些技术。 处理器可以被配置为解析比特流以确定描述声场如何被​​变换的变换信息，以减少提供在描述声场中相关的信息的多个分层元素的数量。 处理器还可以被配置为当基于提供与描述声场相关的信息的多个分层元素中的那些再现声场时，基于变换信息来变换声场以反转执行的变换以减少数字 的多个分层元素。

公开(公告)号：ES2906957T3

公开(公告)日：2022-04-21

申请号：ES18720835

申请日：2018-04-04

Applicant: QUALCOMM INC

Inventor： KIM MOO YOUNG ,  PETERS NILS GÜNTHER ,  SEN DIPANJAN

IPC: G10L19/008 ,  G10L19/16 ,  H04R3/00 ,  H04R5/027 ,  H04S3/00

Abstract: Un dispositivo configurado para comprimir datos de audio ambisónicos de orden superior representativos de un campo de sonido, comprendiendo el dispositivo: una memoria configurada para almacenar coeficientes ambisónicos de orden superior de los datos de audio ambisónicos de orden superior; y uno o más procesadores configurados para: descomponer (1002) los coeficientes ambisónicos de orden superior en un componente de sonido predominante y un componente espacial correspondiente, el componente espacial correspondiente representativo de las direcciones, la forma y el ancho del componente de sonido predominante, y definido en un dominio armónico esférico, en el que el componente espacial comprende elementos; especificar (1006), en un flujo de bits conforme a un formato de compresión intermedia, un subconjunto de coeficientes ambisónicos de orden superior que representan un componente ambiental del campo de sonido; y determinar que al menos uno de los elementos del componente espacial es redundante con respecto a la información proporcionada por el subconjunto de coeficientes ambisónicos de orden superior que representan el componente ambiental del campo de sonido; caracterizado porque uno o más procesadores se configuran para especificar (1008), en el flujo de bits, e independientemente de la determinación de que al menos uno de los elementos del componente espacial es redundante, todos los elementos del componente espacial.

公开(公告)号：CA2999289C

公开(公告)日：2021-10-19

申请号：CA2999289

申请日：2016-10-12

Applicant: QUALCOMM INC

Inventor： PETERS NILS GUNTHER ,  SEN DIPANJAN ,  KIM MOO YOUNG

IPC: H04S3/02 ,  G10L19/008

Abstract: 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.

公开(公告)号：BR112016017589A8

公开(公告)日：2021-06-29

申请号：BR112016017589

申请日：2015-01-30

Applicant: QUALCOMM INC

Inventor： PETERS NILS GÜNTHER ,  SEN DIPANJAN

IPC: H04R5/00 ,  G10L19/008 ,  G10L19/038

Abstract: indicação de reusabilidade de parâmetros de quadros para vetores de codificação em geral, são descritas técnicas para indicar a reusabilidade de parâmetros de quadro para vetores de decodificação. um dispositivo compreendendo um processador e uma memória pode executar as técnicas. o processador pode ser configurado para obter um fluxo de bits compreendendo um vetor representativo de um eixo espacial ortogonal em um domínio de harmônicos esféricos. o fluxo de dados pode compreender ainda um indicador quanto à reutilização, a partir de um quadro anterior, de pelo menos um elemento de sintaxe indicativo da informação utilizada quando se comprime o vetor. a memória pode ser configurada para armazenar o fluxo de bits.