公开(公告)号：US20210210108A1

公开(公告)日：2021-07-08

申请号：US17251753

申请日：2019-06-07

Applicant: Sony Corporation

Inventor： Akifumi Kono ,  Toru Chinen ,  Hiroyuki Honma ,  Yoshiaki Oikawa

IPC: G10L19/022 ,  H03M7/40

Abstract: The present technology relates to a coding device, a coding method, a decoding device, a decoding method, and a program capable of improving coding efficiency.
The coding device includes a time-frequency transform section that performs time-frequency transform using a transform window on an audio signal, and a coding section that performs Huffman coding on frequency spectrum information obtained by the time-frequency transform in a case in which a transform window length of the transform window is changed over from a small transform window length to a large transform window length, and that performs arithmetic coding on the frequency spectrum information in a case in which the transform window length of the transform window is not changed over from the small transform window length to the large transform window length. The present technology is applicable to a coding device and a decoding device.

公开(公告)号：US20200265845A1

公开(公告)日：2020-08-20

申请号：US16867730

申请日：2020-05-06

Applicant: Sony Corporation

Inventor： Yuki Yamamoto ,  Toru Chinen ,  Hiroyuki Honma ,  Runyu Shi

IPC: G10L19/02 ,  G10L19/26 ,  H03G9/00 ,  H03G11/00 ,  H03G7/00

Abstract: The present technology relates to a decoding apparatus, a decoding method and a program which make it possible to obtain sound with higher quality.A demultiplexing circuit demultiplexes an input code string into a gain code string and a signal code string. A signal decoding circuit decodes the signal code string to output a time series signal. A gain decoding circuit decodes the gain code string. That is, the gain decoding circuit reads out gain values and gain inclination values at predetermined gain sample positions of the time series signal and interpolation mode information. An interpolation processing unit obtains a gain value at each sample position between two gain sample positions through linear interpolation or non-linear interpolation according to the interpolation mode based on the gain values and the gain inclination values. A gain applying circuit adjusts a gain of the time series signal based on the gain values. The present technology can be applied to a decoding apparatus.

公开(公告)号：US20200068336A1

公开(公告)日：2020-02-27

申请号：US16500591

申请日：2018-03-30

Applicant: Sony Corporation

Inventor： Hiroyuki Honma ,  Yudai Yamamoto

IPC: H04S7/00 ,  H04R3/04 ,  H04R5/04

Abstract: The present technology relates to a signal processing apparatus and method capable of reducing calculation loads, as well as a program.A signal processing apparatus includes an ambisonic gain calculation unit configured to find, on the basis of spread information of an object, an ambisonic gain while the object is present at a predetermined position. The present technology is applicable to an encoder and a decoder.

公开(公告)号：US10546594B2

公开(公告)日：2020-01-28

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 ,  G10L19/16 ,  G10L19/02 ,  G10L21/038

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：US20190253828A1

公开(公告)日：2019-08-15

申请号：US16303717

申请日：2017-05-17

Applicant: Sony Corporation

Inventor： Hiroyuki Honma ,  Minoru Tsuji

IPC: H04S7/00 ,  G06F3/16 ,  G06F3/0481

Abstract: The present technology relates to an audio processing apparatus and method and a program that are configured to adjust audio characteristics more easily.This audio processing apparatus has a display control unit configured, on the basis of object positional information of an audio object, to cause a display unit to display an audio object information image indicative of a position of the audio object and a selection unit configured to select the predetermined audio object from among one or a plurality of the audio objects. The present technology is applicable to video/audio processing apparatuses.

公开(公告)号：US10381018B2

公开(公告)日：2019-08-13

申请号：US16046070

申请日：2018-07-26

Applicant: Sony Corporation

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

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

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：US10297270B2

公开(公告)日：2019-05-21

申请号：US15581527

申请日：2017-04-28

Applicant: Sony Corporation

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

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

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：US20160225376A1

公开(公告)日：2016-08-04

申请号：US14917825

申请日：2014-09-05

Applicant: SONY CORPORATION

Inventor： Hiroyuki Honma ,  Toru Chinen ,  Runyu Shi ,  Mitsuyuki Hatanaka

IPC: G10L19/008 ,  H04S3/00

CPC classification number: G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S2400/13

Abstract: The present invention pertains to an encoding device and method, a decoding device and method, and to a program, with which sound of an appropriate volume level can be obtained with a smaller quantity of codes. A first gain calculation circuit calculates a first gain for volume level correction of an input time series signal, and a second gain calculation circuit calculates a second gain for volume level correction of a downmixed signal obtained by downmixing of the input time series signal. A gain encoding circuit computes the gain differential between the first gain and the second gain, the gain differential between time frames, and the gain differential within time frames, and encodes the first gain and the second gain. The present invention can be applied in encoding devices and decoding devices.

Abstract translation: 本发明涉及一种编码装置和方法，解码装置和方法以及程序，利用该编码装置和方法可以以较少量的代码获得适当音量的声音。 第一增益计算电路计算输入时间序列信号的音量电平校正的第一增益，第二增益计算电路计算通过输入时间序列信号的下混合而获得的下混合信号的音量电平校正的第二增益。 增益编码电路计算第一增益和第二增益之间的增益差，时间帧之间的增益差和时间帧内的增益差，并对第一增益和第二增益进行编码。 本发明可以应用于编码装置和解码装置。