다중 트랜지션들 동안 고차 앰비소닉 계수들의 코딩

    公开(公告)号:KR20180068974A

    公开(公告)日:2018-06-22

    申请号:KR20187009995

    申请日:2016-10-12

    Applicant: QUALCOMM INC

    Abstract: 일반적으로, 다중트랜지션들동안고차앰비소닉계수들을코딩하기위한기법들이설명된다. 프로세서및 프로세서에커플링된메모리를포함하는디바이스가이 기법들을수행하도록구성될수도있다. 프로세서는, 주변 HOA 계수가포어그라운드오디오신호가트랜지션중일때 비트스트림의동일한프레임동안트랜지션중인지여부의멀티-트랜지션표시를획득하도록구성될수도있다. 프로세서는또한, 멀티-트랜지션표시에기초하여대응하는포어그라운드오디오신호의공간적특징을기술하는벡터를획득하도록구성될수도있고, 벡터및 대응하는 HOA 오디오신호양자모두는 HOA 오디오데이터로부터분해된다. 메모리는벡터를저장하도록구성될수도있다.

    TRANSPORTING CODED AUDIO DATA
    3.
    发明专利

    公开(公告)号:CA2992599C

    公开(公告)日:2022-02-15

    申请号:CA2992599

    申请日:2016-08-25

    Applicant: QUALCOMM INC

    Abstract: In one example, a device for retrieving audio data includes one or more processors configured to receive availability data representative of a plurality of available adaptation sets, the available adaptation sets including a scene-based audio adaptation set and one or more object-based audio adaptation sets, receive selection data identifying which of the scene-based audio adaptation set and the one or more object-based audio adaptation sets are to be retrieved, and provide instruction data to a streaming client to cause the streaming client to retrieve data for each of the adaptation sets identified by the selection data, and a memory configured to store the retrieved data for the audio adaptation sets.

    SELECTING CODEBOOKS FOR CODING VECTORS DECOMPOSED FROM HIGHER-ORDER AMBISONIC AUDIO SIGNALS

    公开(公告)号:SG11201608520RA

    公开(公告)日:2016-11-29

    申请号:SG11201608520R

    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.

    CODING VECTORS DECOMPOSED FROM HIGHER-ORDER AMBISONICS AUDIO SIGNALS

    公开(公告)号:SG11201608518TA

    公开(公告)日:2016-11-29

    申请号:SG11201608518T

    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.

    SIGNALING CHANNELS FOR SCALABLE CODING OF HIGHER ORDER AMBISONIC AUDIO DATA

    公开(公告)号:CA2961292A1

    公开(公告)日:2016-04-14

    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.

    Signaling layers for scalable coding of higher order ambisonic audio data

    公开(公告)号:AU2015330758B9

    公开(公告)日:2021-02-04

    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.

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