ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND PROGRAM
    41.
    发明申请
    ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND PROGRAM 有权
    编码设备和方法,解码设备和方法以及程序

    公开(公告)号:US20170076737A1

    公开(公告)日:2017-03-16

    申请号:US15357877

    申请日:2016-11-21

    Abstract: The present invention relates to an encoding device and method, and a decoding device and method, and a program which enable music signals to be played with higher sound quality by expanding a frequency band.A band pass filter divides an input signal into multiple subband signals, a feature amount calculating circuit calculates feature amount using at least any one of the divided multiple subband signals and the input signal, a high-frequency subband power estimating circuit calculates an estimated value of high-frequency subband power based on the calculated feature amount, and a high-frequency signal generating circuit generates a high-frequency signal component based on the multiple subband signals divided by the band pass filter and the estimated value of the high-frequency subband power calculated by the high-frequency subband power estimating circuit. A frequency band expanding device expands the frequency band of the input signal using the high-frequency signal component generated by the high-frequency signal generating circuit. The present invention may be applied to a frequency band expanding device, encoding device, decoding device, and so forth, for example.

    Abstract translation: 带通滤波器将输入信号划分成多个子带信号,特征量计算电路使用划分的多个子带信号和输入信号中的至少一个来计算特征量,高频子带功率估计电路计算估计值 基于计算出的特征量的高频子带功率,高频信号生成电路基于由带通滤波器分割的多个子带信号和高频子带功率的估计值,生成高频信号成分 由高频子带功率估计电路计算出。 频带扩展装置使用由高频信号发生电路产生的高频信号分量来扩展输入信号的频带。 例如,本发明可以应用于频带扩展装置,编码装置,解码装置等。

    INFORMATION PROCESSING DEVICE AND METHOD, AND PROGRAM
    42.
    发明申请
    INFORMATION PROCESSING DEVICE AND METHOD, AND PROGRAM 有权
    信息处理设备和方法,程序

    公开(公告)号:US20160165374A1

    公开(公告)日:2016-06-09

    申请号:US14905116

    申请日:2014-07-11

    Abstract: The present technology relates to an information processing device and method for allowing a sound image to be localized with higher precision, and a program. When a target sound image is outside a mesh, the target sound image is moved in a vertical direction while a position in a horizontal direction of the target sound image remains fixed, so that the target sound image is present on a boundary of the mesh. Specifically, a mesh detection unit detects a mesh including a position in the horizontal direction of the target sound image. A candidate position calculation unit calculates a position that is a movement target of the target sound image, based on loudspeaker positions that are at opposite ends of an arc of the detected mesh that is a destination, and the position in the horizontal direction of the target sound image. As a result, the target sound image can be moved onto a boundary of the mesh. The present technology is applicable to a sound processing device.

    Abstract translation: 本技术涉及一种用于允许以更高精度定位声像的信息处理装置和方法以及程序。 当目标声音图像在网格之外时,目标声音图像在目标声音图像的水平方向上的位置保持固定的同时沿垂直方向移动,使得目标声音图像存在于网格的边界上。 具体而言,网格检测单元检测包括目标声音图像在水平方向上的位置的网格。 候选位置计算单元基于作为目的地的检测到的网格的弧的相对端的扬声器位置和目标的水平方向的位置来计算作为目标声音图像的移动目标的位置 声像 结果,目标声音图像可以移动到网格的边界上。 本技术适用于声音处理装置。

    Rendering virtual images based on predicted head posture

    公开(公告)号:US10324523B2

    公开(公告)日:2019-06-18

    申请号:US15026766

    申请日:2014-11-04

    Abstract: An image following a movement of a head of a user who observes an image is generated.At a drawing device 300, posture angle data to be received at a certain time after a time series of posture angle data that have already been received are predicted, and rendering processing is performed on an image based on the predicted posture angle data. A prediction algorithm for the posture angle data is roughly divided into two steps: (1) estimating a predicted time to receive the posture angle data; and (2) predicting the posture angle data at the predicted time. By rendering the image at the predicted time from the predicted posture angle data, a sense of delay felt when the image following the movement of the head of the user is presented is reduced.

    SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD, ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD, AND PROGRAM

    公开(公告)号:US20190180768A1

    公开(公告)日:2019-06-13

    申请号:US16276936

    申请日:2019-02-15

    Abstract: The present invention relates to a signal processing apparatus and a signal processing method, an encoder and an encoding method, a decoder and a decoding method, and a program capable of reproducing music signal having a better sound quality by expansion of frequency band.An encoder sets an interval including 16 frames as interval section to be processed, outputs high band encoded data for obtaining the high band component of an input signal and low band encoded data obtained by encoding the low band signal of the input signal for each section to be processed. In this case, for each frame, a coefficient used in estimation of the high band component is selected and the section to be processed is divided into continuous frame segments including continuous frames from which the coefficient with the same section to be processed is selected. In addition, high band encoded data is produced which includes data including information indicating a length of each continuous frame segment, information indicating the number of continuous frame segments included in the section to be processed and a coefficient index indicating the coefficient selected in each continuous frame segment. The present invention is applicable to the encoder.

    SOUND PROCESSING APPARATUS AND METHOD, AND PROGRAM

    公开(公告)号:US20190149935A1

    公开(公告)日:2019-05-16

    申请号:US16248739

    申请日:2019-01-15

    CPC classification number: H04S5/005 H03G3/301 H04S7/30 H04S7/302 H04S2400/11

    Abstract: The present technology relates to a sound processing apparatus and method, and a program for enabling more stable localization of a sound image.A virtual speaker is assumed to exist on the lower side among the sides of a tetragon having its corners formed with four speakers surrounding a target sound image position on a spherical plane. Three-dimensional VBAP is performed with respect to the virtual speaker and the two speakers located at the upper right and the upper left, to calculate gains of the two speakers at the upper right and the upper left and the virtual speaker, the gains being to be used for fixing a sound image at the target sound image position. Further, two-dimensional VBAP is performed with respect to the lower right and lower left speakers, to calculate gains of the lower right and lower left speakers, the gains being to be used for fixing a sound image at the position of the virtual speaker. The values obtained by multiplying these gains by the gain of the virtual speaker are set as the gains of the lower right and lower left speakers for fixing a sound image at the target sound image position. The present technology can be applied to sound processing apparatuses.

    Signal processing apparatus and signal processing method, encoder and encoding method, decoder and decoding method, and program

    公开(公告)号:US10224054B2

    公开(公告)日:2019-03-05

    申请号:US15584447

    申请日:2017-05-02

    Abstract: Methods and apparatus for performing signal processing. The signal processing comprises demultiplexing input encoded data into data including information for a segment including frames and coefficient information for a coefficient selected in the frames of the segment, and low band encoded data, decoding the low band encoded data to produce a low band signal, selecting a coefficient of a frame to be processed from a plurality of the coefficients based on the data, calculating a high band sub-band power of a high band sub-band signal of each sub-band constituting a high band signal of the frame to be processed based on a low band sub-band signal of each sub-band constituting the low band signal of the frame to be processed and the selected coefficient, and producing the high band signal of the frame to be processed based on the high band sub-band power and the low band sub-band signal.

    Sound processing apparatus and sound processing system

    公开(公告)号:US20180184222A1

    公开(公告)日:2018-06-28

    申请号:US15932368

    申请日:2018-02-16

    Abstract: The present technology relates to a sound processing apparatus and a sound processing system for enabling more stable localization of a sound image.A virtual speaker is assumed to exist on the lower side among the sides of a tetragon having its corners formed with four speakers surrounding a target sound image position on a spherical plane. Three-dimensional VBAP is performed with respect to the virtual speaker and the two speakers located at the upper right and the upper left, to calculate gains of the two speakers at the upper right and the upper left and the virtual speaker, the gains being to be used for fixing a sound image at the target sound image position. Further, two-dimensional VBAP is performed with respect to the lower right and lower left speakers, to calculate gains of the lower right and lower left speakers, the gains being to be used for fixing a sound image at the position of the virtual speaker. The values obtained by multiplying these gains by the gain of the virtual speaker are set as the gains of the lower right and lower left speakers for fixing a sound image at the target sound image position. The present technology can be applied to sound processing apparatuses.

    Information processing device and method, and program

    公开(公告)号:US09998845B2

    公开(公告)日:2018-06-12

    申请号:US14905116

    申请日:2014-07-11

    Abstract: The present technology relates to an information processing device and method for allowing a sound image to be localized with higher precision, and a program. When a target sound image is outside a mesh, the target sound image is moved in a vertical direction while a position in a horizontal direction of the target sound image remains fixed, so that the target sound image is present on a boundary of the mesh. Specifically, a mesh detection unit detects a mesh including a position in the horizontal direction of the target sound image. A candidate position calculation unit calculates a position that is a movement target of the target sound image, based on loudspeaker positions that are at opposite ends of an arc of the detected mesh that is a destination, and the position in the horizontal direction of the target sound image. As a result, the target sound image can be moved onto a boundary of the mesh. The present technology is applicable to a sound processing device.

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