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1. 发明公开

EP3989605A1 SIGNAL PROCESSING DEVICE AND METHOD, AND PROGRAM 审中-实审
公开(公告)号：EP3989605A1
公开(公告)日：2022-04-27
申请号：EP20826028.1
申请日：2020-06-10
申请人： Sony Group Corporation
发明人： NAMBA, Ryuichi , AKUNE, Makoto , AOYAMA, Keiichi , OIKAWA, Yoshiaki
IPC分类号： H04S7/00
摘要： The present technology relates to a signal processing device, signal processing method, and program capable of providing a higher realistic feeling.
A signal processing device includes: an acquisition unit that acquires audio data of an audio object and metadata including position information indicating a position of the audio object and direction information indicating a direction of the audio object; and a signal generation unit that generates a reproduction signal for reproducing a sound of the audio object at a listening position on the basis of listening position information indicating the listening position, listener direction information indicating a direction of a listener at the listening position, the position information, the direction information, and the audio data. The present technology is applicable to a transmission reproduction system.

2. 发明公开

EP4283877A3 ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD, AND PROGRAM 审中-实审
公开(公告)号：EP4283877A3
公开(公告)日：2024-01-10
申请号：EP23195286.2
申请日：2019-06-07
申请人： Sony Group Corporation
发明人： KONO, Akifumi , CHINEN, Toru , HONMA, Hiroyuki , OIKAWA, Yoshiaki
IPC分类号： G10L19/22 , G10L19/02 , G10L19/00 , H03M7/40 , H03M7/30 , G10L19/022 , G10L19/032
摘要： Provided is a decoding device including a demultiplexing section configured to demultiplex a coded bit stream, and extract transform window information indicating a type of a transform window used in time-frequency transform of an audio signal and coded data regarding frequency spectrum information obtained by the time-frequency transform from the coded bit stream. The decoding device further includes a decoding section configured to decode the coded data. Additionally, the decoding device includes a decoding scheme selection section configured to select a decoding scheme for the decoding section based on the transform window information. The decoding scheme selection section is configured to control the decoding section to decode the coded data by a decoding scheme corresponding to Huffman coding in a case in which the type of the transform window indicated by the transform window information is a transform window selected at a time of changing over the transform window length from a small transform window length to a large transform window length. Furthermore, the decoding scheme selection section is configured to control the decoding section to decode the coded data by a decoding scheme corresponding to arithmetic coding in a case in which the type of the transform window indicated by the transform window information is not the transform window selected at the time of changing over the transform window length from the small transform window length to the large transform window length.

3. 发明公开

EP4258260A3 INFORMATION PROCESSING DEVICE AND METHOD, AND PROGRAM 审中-实审
公开(公告)号：EP4258260A3
公开(公告)日：2023-12-13
申请号：EP23181780.0
申请日：2019-03-26
申请人： Sony Group Corporation
发明人： HONMA, Hiroyuki , CHINEN, Toru , OIKAWA, Yoshiaki
IPC分类号： H04S7/00 , G10L19/008
摘要： 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.

4. 发明公开

EP4283877A2 ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD, AND PROGRAM 审中-实审
公开(公告)号：EP4283877A2
公开(公告)日：2023-11-29
申请号：EP23195286.2
申请日：2019-06-07
申请人： Sony Group Corporation
发明人： KONO, Akifumi , CHINEN, Toru , HONMA, Hiroyuki , OIKAWA, Yoshiaki
IPC分类号： H03M7/30
摘要： Provided is a decoding device including a demultiplexing section configured to demultiplex a coded bit stream, and extract transform window information indicating a type of a transform window used in time-frequency transform of an audio signal and coded data regarding frequency spectrum information obtained by the time-frequency transform from the coded bit stream. The decoding device further includes a decoding section configured to decode the coded data. Additionally, the decoding device includes a decoding scheme selection section configured to select a decoding scheme for the decoding section based on the transform window information. The decoding scheme selection section is configured to control the decoding section to decode the coded data by a decoding scheme corresponding to Huffman coding in a case in which the type of the transform window indicated by the transform window information is a transform window selected at a time of changing over the transform window length from a small transform window length to a large transform window length. Furthermore, the decoding scheme selection section is configured to control the decoding section to decode the coded data by a decoding scheme corresponding to arithmetic coding in a case in which the type of the transform window indicated by the transform window information is not the transform window selected at the time of changing over the transform window length from the small transform window length to the large transform window length.

5. 发明公开

EP4258260A2 INFORMATION PROCESSING DEVICE AND METHOD, AND PROGRAM 审中-实审
公开(公告)号：EP4258260A2
公开(公告)日：2023-10-11
申请号：EP23181780.0
申请日：2019-03-26
申请人： Sony Group Corporation
发明人： HONMA, Hiroyuki , CHINEN, Toru , OIKAWA, Yoshiaki
IPC分类号： G10L19/008
摘要： 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.

6. 发明公开

EP4002870A1 SIGNAL PROCESSING DEVICE AND METHOD, AND PROGRAM 审中-实审
公开(公告)号：EP4002870A1
公开(公告)日：2022-05-25
申请号：EP20843473.8
申请日：2020-07-03
申请人： Sony Group Corporation
发明人： TOGURI, Yasuhiro , OIKAWA, Yoshiaki
IPC分类号： H04R1/02 , H04R1/40 , H04R3/00 , H04R7/04 , G10L19/00 , G10L19/008 , H04S7/00
摘要： The present technology relates to a signal processing device, a signal processing method, and a program for enabling reproduction of high-quality sounds with a low process load. The signal processing device includes a demultiplexing section that extracts encoded audio signals and overamplitude flags, which have been generated for a plurality of respective panel loudspeakers and each indicate whether overamplitude will occur in the corresponding panel loudspeaker, by demultiplexing encoded data, a decoding section that decodes the encoded audio signals, and an adjustment section that adjusts audio signals to be supplied to the plurality of panel loudspeakers on the basis of the overamplitude flags and audio signals resulting from the decoding. The present technology is applicable to an encoding device and a decoding device.

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