公开(公告)号：US20180322887A1

公开(公告)日：2018-11-08

申请号：US16039110

申请日：2018-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun CHOO ,  Anton Victorovich POROV ,  Konstantin Sergeevich OSIPOV ,  Nam-suk LEE

IPC: G10L19/12 ,  G10L19/22

CPC classification number: G10L19/12 ,  G10L19/00 ,  G10L19/20 ,  G10L19/22

Abstract: Provided are a method and an apparatus for determining an encoding mode for improving the quality of a reconstructed audio signal. A method of determining an encoding mode includes determining one from among a plurality of encoding modes including a first encoding mode and a second encoding mode as an initial encoding mode in correspondence to characteristics of an audio signal, and if there is an error in the determination of the initial encoding mode, generating a modified encoding mode by modifying the initial encoding mode to a third encoding mode.

公开(公告)号：US20170011754A1

公开(公告)日：2017-01-12

申请号：US15121257

申请日：2015-02-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun CHOO ,  Anton Viktorovich POROV ,  Konstantin Sergeevich OSIPOV

IPC: G10L25/81 ,  G10L19/02 ,  G10L19/022 ,  G10L19/125 ,  G10L19/20 ,  G10L19/005

CPC classification number: G10L25/81 ,  G10L19/005 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/125 ,  G10L19/20

Abstract: The present invention relates to an audio encoding and, more particularly, to a signal classifying method and device, and an audio encoding method and device using the same, which can reduce a delay caused by an encoding mode switching while improving the quality of reconstructed sound. The signal classifying method may comprise the operations of: classifying a current frame into one of a speech signal and a music signal; determining, on the basis of a characteristic parameter obtained from multiple frames, whether a result of the classifying of the current frame includes an error; and correcting the result of the classifying of the current frame in accordance with a result of the determination. By correcting an initial classification result of an audio signal on the basis of a correction parameter, the present invention can determine an optimum coding mode for the characteristic of an audio signal and can prevent frequent coding mode switching between frames.

Abstract translation: 音频编码技术领域本发明涉及音频编码，更具体地说，涉及一种信号分类方法和装置，以及使用该编码方法和装置的音频编码方法和装置，其可以减少由编码模式切换引起的延迟，同时提高重构声音的质量 。 信号分类方法可以包括以下操作：将当前帧分类为语音信号和音乐信号之一; 基于从多个帧获得的特征参数，确定当前帧的分类结果是否包括错误; 以及根据确定的结果来校正当前帧的分类结果。 通过基于校正参数来校正音频信号的初始分类结果，本发明可以确定用于音频信号的特性的最佳编码模式，并且可以防止帧之间的频繁编码模式切换。

公开(公告)号：US20170236526A1

公开(公告)日：2017-08-17

申请号：US15504213

申请日：2015-08-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun CHOO ,  Anton Viktorovich POROV ,  Konstantin Sergeevich OSIPOV ,  Eun-mi OH ,  Woo-jung PARK

IPC: G10L21/02 ,  G10L21/0364 ,  G10L25/21 ,  G10L21/0388 ,  G10L19/06

CPC classification number: G10L21/0205 ,  G10L19/06 ,  G10L21/02 ,  G10L21/0364 ,  G10L21/0388 ,  G10L25/21

Abstract: A method of enhancing speech quality includes: generating a high-frequency signal by using a low-frequency signal in a time domain; combining the low-frequency signal with the high-frequency signal; transforming the combined signal into a spectrum in a frequency domain; determining a class of a decoded speech signal; predicting an envelope from a low-frequency spectrum obtained in the transforming; and generating a final high-frequency spectrum by applying the predicted envelope to a high-frequency spectrum obtained in the transforming.

公开(公告)号：US20140188465A1

公开(公告)日：2014-07-03

申请号：US14079090

申请日：2013-11-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun CHOO ,  Anton Victorovich POROV ,  Konstantin Sergeevich OSIPOV ,  Nam-suk LEE

IPC: G10L19/12

CPC classification number: G10L19/12 ,  G10L19/00 ,  G10L19/20 ,  G10L19/22

Abstract: Provided are a method and an apparatus for determining an encoding mode for improving the quality of a reconstructed audio signal. A method of determining an encoding mode includes determining one from among a plurality of encoding modes including a first encoding mode and a second encoding mode as an initial encoding mode in correspondence to characteristics of an audio signal, and if there is an error in the determination of the initial encoding mode, generating a modified encoding mode by modifying the initial encoding mode to a third encoding mode.

Abstract translation: 提供了一种用于确定用于提高重构音频信号的质量的编码模式的方法和装置。 确定编码模式的方法包括：根据音频信号的特性，将包括第一编码模式和第二编码模式的多个编码模式之一确定为初始编码模式，并且如果在所述确定中存在错误 的初始编码模式，通过将初始编码模式修改为第三编码模式来生成修改的编码模式。

公开(公告)号：US20200035252A1

公开(公告)日：2020-01-30

申请号：US16593041

申请日：2019-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun CHOO ,  Anton Victorovich POROV ,  Konstantin Sergeevich OSIPOV ,  Nam-suk LEE

IPC: G10L19/12 ,  G10L19/22

Abstract: Provided are a method and an apparatus for determining an encoding mode for improving the quality of a reconstructed audio signal. A method of determining an encoding mode includes determining one from among a plurality of encoding modes including a first encoding mode and a second encoding mode as an initial encoding mode in correspondence to characteristics of an audio signal, and if there is an error in the determination of the initial encoding mode, generating a modified encoding mode by modifying the initial encoding mode to a third encoding mode.

公开(公告)号：US20190103129A1

公开(公告)日：2019-04-04

申请号：US16148708

申请日：2018-10-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun CHOO ,  Anton Viktorovich POROV ,  Konstantin Sergeevich OSIPOV

IPC: G10L25/81 ,  G10L19/20 ,  G10L19/005 ,  G10L19/022 ,  G10L19/02 ,  G10L19/125

Abstract: The present invention relates to an audio encoding and, more particularly, to a signal classifying method and device, and an audio encoding method and device using the same, which can reduce a delay caused by an encoding mode switching while improving the quality of reconstructed sound. The signal classifying method may comprise the operations of: classifying a current frame into one of a speech signal and a music signal; determining, on the basis of a characteristic parameter obtained from multiple frames, whether a result of the classifying of the current frame includes an error; and correcting the result of the classifying of the current frame in accordance with a result of the determination. By correcting an initial classification result of an audio signal on the basis of a correction parameter, the present invention can determine an optimum coding mode for the characteristic of an audio signal and can prevent frequent coding mode switching between frames.

公开(公告)号：US20130275140A1

公开(公告)日：2013-10-17

申请号：US13758054

申请日：2013-02-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi-young KIM ,  Anton Viktorovich POROV ,  Konstantin Sergeevich OSIPOV

IPC: G10L19/002

CPC classification number: G10L19/002 ,  G10L19/0208 ,  G10L19/032

Abstract: An audio encoding apparatus is provided that includes a transform unit to transform an audio signal in the time domain into an audio spectrum in the frequency domain; a bit allocation unit to determine the number of allocated bits by using spectral energy in predetermined frequency band units for the audio spectrum; and an encoding unit to determine the number of unit magnitude pulses for factorial pulse coding based on the number of allocated bits for the audio spectrum and to perform factorial pulse coding in the frequency band units for the audio spectrum by using the determined number of unit magnitude pulses.

Abstract translation: 提供一种音频编码装置，其包括将时域中的音频信号变换为频域中的音频频谱的变换单元; 比特分配单元，用于通过使用用于音频频谱的预定频带单位中的频谱能量来确定分配的比特数; 以及编码单元，用于基于用于音频频谱的分配比特数来确定用于阶乘脉冲编码的单位幅度脉冲的数量，并且通过使用所确定的单位幅度的数量在音频频谱的频带单元中执行阶乘脉冲编码 脉冲。