公开(公告)号：US11337022B2

公开(公告)日：2022-05-17

申请号：US17045154

申请日：2019-03-26

Applicant: Sony Corporation

Inventor： Hiroyuki Honma ,  Toru Chinen ,  Yoshiaki Oikawa

IPC: H04S7/00 ,  G10L19/008 ,  H04S3/00

Abstract: The present technology relates to an information processing apparatus, a method, and a program that can create a great sense of realism with a small number of computations.
An information processing apparatus includes a gain determination section that determines an attenuation level on the basis of a positional relationship between a given object and another object and determines a gain of a signal of the given object on the basis of the attenuation level. The present technology is applicable to a signal processing apparatus.

公开(公告)号：US20190180768A1

公开(公告)日：2019-06-13

申请号：US16276936

申请日：2019-02-15

Applicant: Sony Corporation

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Yuhki Mitsufuji

IPC: G10L21/0388 ,  G10L19/02 ,  G10L21/038 ,  G10L19/16

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.

公开(公告)号：US10224054B2

公开(公告)日：2019-03-05

申请号：US15584447

申请日：2017-05-02

Applicant: Sony Corporation

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Yuhki Mitsufuji

IPC: G10L21/0388 ,  G10L19/16 ,  G10L19/02 ,  G10L21/038

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.

公开(公告)号：US20180286419A1

公开(公告)日：2018-10-04

申请号：US15772310

申请日：2016-10-26

Applicant: Sony Corporation

Inventor： Mitsuyuki Hatanaka ,  Toru Chinen ,  Minoru Tsuji ,  Hiroyuki Honma

IPC: G10L19/12 ,  G10L19/032

Abstract: The present disclosure relates to a decoding apparatus, a decoding method, and a program that can switch, as quickly as possible, a plurality of audio encoded bit streams with synchronized reproduction timing to thereby decode and output the plurality of audio encoded bit streams.An aspect of the present disclosure provides a decoding apparatus including: an acquisition unit that acquires a plurality of audio encoded bit streams; a selection unit that determines a boundary position for switching output of the plurality of audio encoded bit streams and that selectively supplies one of the plurality of acquired audio encoded bit streams to a decoding processing unit according to the boundary position; and the decoding processing unit that applies a decoding process including IMDCT processing to the one input through the selection unit, in which the decoding processing unit skips overlap-and-add in the IMDCT processing corresponding to each frame before and after the boundary position. The present disclosure can be applied to, for example, a reception apparatus, a reproduction apparatus, and the like.

公开(公告)号：US20170229139A1

公开(公告)日：2017-08-10

申请号：US15581527

申请日：2017-04-28

Applicant: Sony Corporation

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Yuhki Mitsufuji

IPC: G10L21/0388 ,  G10L19/02 ,  G10L19/16

CPC classification number: G10L21/0388 ,  G10L19/0204 ,  G10L19/0208 ,  G10L19/167 ,  G10L21/038

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.

公开(公告)号：US09691410B2

公开(公告)日：2017-06-27

申请号：US14870268

申请日：2015-09-30

Applicant: Sony Corporation

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Yuhki Mitsufuji

IPC: H04J1/00 ,  G10L21/0388 ,  G10L21/038 ,  G10L19/02

CPC classification number: G10L21/0388 ,  G10L19/0208 ,  G10L21/038

Abstract: The present invention relates to a frequency band extending device and method, an encoding device and method, a decoding device and method, and a program, whereby music signals can be played with higher sound quality due to the extension of frequency bands.A bandpass filter 13 divides an input signal into multiple sub-band signals, a feature amount calculating circuit 14 calculates feature amount using at least one of the multiple divided sub-band signals and the input signal, a high frequency sub-band power estimating circuit 15 calculates an estimated value of a high frequency sub-band power based on the calculated feature amount, a high frequency signal generating circuit 16 generates a high frequency signal component based on the multiple sub-band signals divided by the bandpass filter 13, and the estimated value of the high frequency sub-band power calculated by the high frequency sub-band power estimating circuit 15. A frequency band extending device 10 extends the frequency band of the input signal using a high frequency signal component. The present invention may be applied to a frequency band extending device, for example.

公开(公告)号：US09679580B2

公开(公告)日：2017-06-13

申请号：US15003960

申请日：2016-01-22

Applicant: Sony Corporation

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Yuhki Mitsufuji

IPC: G10L21/038 ,  G10L21/0388 ,  G10L19/02 ,  G10L19/16

CPC classification number: G10L21/0388 ,  G10L19/0204 ,  G10L19/0208 ,  G10L19/167 ,  G10L21/038

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.

公开(公告)号：US20150120307A1

公开(公告)日：2015-04-30

申请号：US14585974

申请日：2014-12-30

Applicant: SONY CORPORATION

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Yuhki Mitsufuji

IPC: G10L21/02 ,  G10L25/18 ,  G10L19/02

CPC classification number: G10L21/0205 ,  G10L19/0204 ,  G10L19/167 ,  G10L21/0388 ,  G10L25/18

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.A high band decoding circuit decodes high band encoded data outputs a coefficient table having coefficients for the respective high band sub-bands, which are specified by a coefficient index obtained as a result of decoding. A decoding high band sub-band power calculation circuit calculates decoded high band sub-band powers for the respective high band sub-bands based on low band signals and the coefficient table, and a decoded high band signal production unit produces decoded high band signals from these decoded high band sub-band powers. At this time, an extension and reduction unit newly produces or deletes coefficients of the coefficient table for the respective sub-bands to correspond to the number of sub-bands of the calculated decoded high band sub-band powers, thereby to extend or reduce the coefficient table. The present invention can be applied to a decoder.

Abstract translation: 本发明涉及一种信号处理装置和信号处理方法，编码器和编码方法，解码器和解码方法，以及能够通过扩展频带来再现具有更好音质的音乐信号的程序。 解码高频带编码数据的高频带解码电路输出具有各个高频带子带的系数的系数表，该系数表由作为解码结果而获得的系数索引指定。 解码高频带子频带功率计算电路基于低频带信号和系数表来计算各个高频带子频带的解码的高频带子频带功率，解码的高频带信号产生单元从 这些解码的高带子带功率。 此时，扩展和缩小单元新产生或删除各个子带的系数表的系数，以对应于计算出的解码的高带子带功率的子带的数量，从而扩展或减少 系数表。 本发明可以应用于解码器。

公开(公告)号：US11310619B2

公开(公告)日：2022-04-19

申请号：US16770565

申请日：2018-11-28

Applicant: Sony Corporation

Inventor： Hiroyuki Honma ,  Toru Chinen

IPC: H04S7/00 ,  H04S3/00 ,  G10L19/008

Abstract: The present technology relates to a signal processing device and method, and a program for improving reproducibility of a sound image with a small amount of calculation.
A signal processing device includes a rendering method selection unit configured to select one or more methods of rendering processing of localizing a sound image of an audio signal in a listening space from among a plurality of methods, and a rendering processing unit configured to perform the rendering processing for the audio signal by the method selected by the rendering method selection unit. The present technology can be applied to a signal processing device.

公开(公告)号：US20210168548A1

公开(公告)日：2021-06-03

申请号：US16770565

申请日：2018-11-28

Applicant: Sony Corporation

Inventor： Hiroyuki Honma ,  Toru Chinen

IPC: H04S7/00 ,  H04S3/00

Abstract: The present technology relates to a signal processing device and method, and a program for improving reproducibility of a sound image with a small amount of calculation.
A signal processing device includes a rendering method selection unit configured to select one or more methods of rendering processing of localizing a sound image of an audio signal in a listening space from among a plurality of methods, and a rendering processing unit configured to perform the rendering processing for the audio signal by the method selected by the rendering method selection unit. The present technology can be applied to a signal processing device.