Signaling layers for scalable coding of higher order ambisonic audio data

    公开(公告)号:AU2015330758B2

    公开(公告)日:2020-10-01

    申请号:AU2015330758

    申请日:2015-10-09

    Applicant: QUALCOMM INC

    Abstract: In general, techniques are described for signaling layers for scalable coding of higher order ambisonic audio data. A device comprising a memory and a processor may be configured to perform the techniques. The memory may be configured to store the bitstream. The processor may be configured to obtain, from the bitstream, an indication of a number of layers specified in the bitstream, and obtain the layers of the bitstream based on the indication of the number of layers.

    Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals

    公开(公告)号:AU2015258831B2

    公开(公告)日:2020-03-12

    申请号:AU2015258831

    申请日:2015-05-15

    Applicant: QUALCOMM INC

    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.

    ОПРЕДЕЛЕНИЕ МЕЖДУ СКАЛЯРНЫМ И ВЕКТОРНЫМ КВАНТОВАНИЕМ В КОЭФФИЦИЕНТАХ АМБИОФОНИИ ВЫСШЕГО ПОРЯДКА

    公开(公告)号:RU2656833C1

    公开(公告)日:2018-06-06

    申请号:RU2016147691

    申请日:2015-05-15

    Applicant: QUALCOMM INC

    Abstract: Изобретениеотноситсяк средствамдлякодированияи декодированияаудиоданных. Техническийрезультатзаключаетсяв повышенииэффективностикодированияаудиоданных. Получают, посредствомустройствадекодированияаудио, потокбитов. Потокбитоввключаетв себясинтаксическийэлемент, идентифицирующий, былоливыполненовекторноеквантованиеилискалярноеквантование. Выполняют, посредствомустройствадекодированияаудиои наосновесинтаксическогоэлемента, либовекторноедеквантование, либоскалярноедеквантованиеотносительнопространственногокомпонента, заданногов областисферическихгармоник. Подготавливаютпутемрендерингаоднуилиболееподачзвукав громкоговорители. Выводятоднуилиболееподачзвукав громкоговорителинаодинилиболеегромкоговорителей. 3 н. и 12 з.п. ф-лы, 30 ил.

    CODING VECTORS DECOMPOSED FROM HIGHER-ORDER AMBISONICS AUDIO SIGNALS

    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

    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.

    Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals

    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

    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.

    SIGNALING CHANNELS FOR SCALABLE CODING OF HIGHER ORDER AMBISONIC AUDIO DATA

    公开(公告)号:CA2961292C

    公开(公告)日:2022-03-15

    申请号:CA2961292

    申请日:2015-10-09

    Applicant: QUALCOMM INC

    Abstract: In general, techniques are described for signaling channels for scalable coding of higher order ambisonic audio data. A device comprising a memory and a processor may be configured to perform the techniques. The memory may be configured to store the bitstream. The processor may be configured to obtain, from the bitstream, an indication of a number of channels specified in one or more layers in the bitstream, and obtain the channels specified in the one or more layers in the bitstream based on the indication of the number of channels.

    CODING VECTORS DECOMPOSED FROM HIGHER-ORDER AMBISONICS AUDIO SIGNALS

    公开(公告)号:CA2946820C

    公开(公告)日:2021-08-10

    申请号:CA2946820

    申请日:2015-05-15

    Applicant: QUALCOMM INC

    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.

Patent Agency Ranking