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    METHOD AND APPARATUS FOR HIGH FREQUENCY DECODING FOR BANDWIDTH EXTENSION
    2.
    发明公开
    METHOD AND APPARATUS FOR HIGH FREQUENCY DECODING FOR BANDWIDTH EXTENSION 审中-公开
    高频编码方法和设备/解码标准，以带宽扩展

    公开(公告)号：EP3115991A1

    公开(公告)日：2017-01-11

    申请号：EP15759308.8

    申请日：2015-03-03

    申请人： Samsung Electronics Co., Ltd.

    发明人： CHOO, Ki-hyun ,  OH, Eun-mi ,  HWANG, Seon-ho

    IPC分类号： G10L19/00 ,  G10L19/02

    CPC分类号： G10L19/12 ,  G10L19/012 ,  G10L19/08 ,  G10L19/167 ,  G10L19/18 ,  G10L21/038

    摘要： Disclosed are a method and an apparatus for high frequency decoding for bandwidth extension. The method for high frequency decoding for bandwidth extension comprises the steps of: decoding an excitation class; transforming a decoded low frequency spectrum on the basis of the excitation class; and generating a high frequency excitation spectrum on the basis of the transformed low frequency spectrum. The method and apparatus for high frequency decoding for bandwidth extension according to an embodiment can transform a restored low frequency spectrum and generate a high frequency excitation spectrum, thereby improving the restored sound quality without an excessive increase in complexity.

    摘要翻译： 公开的是用于高频用于带宽扩展解码的方法和设备来。 高频用于带宽扩展解码，该方法包括以下步骤：激励类的解码; 将所述激发类的基础上解码的低频频谱; 并产生转化的低频谱的基础上的高频激发光谱。 根据实施例在可以将恢复的低频频谱和产生高频激发光谱，从而改善了恢复的声音质量，而不会过度复杂，以增加带宽扩展为高频解码的方法和装置。

    HIGH-BAND ENCODING METHOD
    3.
    发明公开
    HIGH-BAND ENCODING METHOD 审中-公开

    公开(公告)号：EP3913628A1

    公开(公告)日：2021-11-24

    申请号：EP21185891.5

    申请日：2015-03-24

    申请人： Samsung Electronics Co., Ltd.

    发明人： CHOO, Ki-hyun ,  OH, Eun-mi

    IPC分类号： G10L19/02 ,  G10L21/038

    摘要： Disclosed are a high-band encoding/decoding method and device for bandwidth extension. A high-band encoding method comprising the steps of: generating sub band-specific bit allocation information on the basis of a low-band envelope; determining, on the basis of the sub band-specific bit allocation information, the sub band requiring an envelope update in a high band; and generating, for the determined sub band, refinement data relating to the envelope update. A high-band decoding method comprising the steps of: generating sub band-specific bit allocation information on the basis of a low-band envelope; determining, on the basis of the sub band-specific bit allocation information, the sub band requiring an envelope update in a high band; and decoding, for the determined sub band, refinement data relating to the envelope update, thereby updating the envelope.

    SIGNAL CLASSIFYING METHOD AND DEVICE, AND AUDIO ENCODING METHOD AND DEVICE USING SAME
    7.
    发明公开
    SIGNAL CLASSIFYING METHOD AND DEVICE, AND AUDIO ENCODING METHOD AND DEVICE USING SAME 有权
    新加坡国立大剧院

    公开(公告)号：EP3109861A1

    公开(公告)日：2016-12-28

    申请号：EP15751981.0

    申请日：2015-02-24

    申请人： Samsung Electronics Co., Ltd.

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

    IPC分类号： G10L25/78

    CPC分类号： G10L25/81 ,  G10L19/005 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/125 ,  G10L19/20

    摘要： 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.

    摘要翻译： 音频编码技术领域本发明涉及一种音频编码，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来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。

    METHOD AND APPARATUS FOR PROCESSING SPEECH SIGNAL ADAPTIVE TO NOISE ENVIRONMENT
    9.
    发明公开
    METHOD AND APPARATUS FOR PROCESSING SPEECH SIGNAL ADAPTIVE TO NOISE ENVIRONMENT 审中-公开

    公开(公告)号：EP3605529A1

    公开(公告)日：2020-02-05

    申请号：EP17901560.7

    申请日：2017-03-22

    申请人： Samsung Electronics Co., Ltd.

    发明人： SUNG, Ho-sang ,  JEONG, Jong-hoon ,  CHOO, Ki-hyun ,  OH, Eun-mi

    IPC分类号： G10L15/20 ,  G10L21/0208 ,  G10L21/0308 ,  G10L21/0364 ,  G10L25/18 ,  G10L15/04

    摘要： A voice signal processing method includes acquiring a near-end noise signal and a near-end voice signal by using at least one microphone, acquiring a far-end voice signal according to an incoming call, determining a noise control parameter and a voice signal change parameter based on at least one of information about the near-end voice signal, information about the near-end noise signal, or information about the far-end voice signal, generating an anti-phase signal of the near-end noise signal based on the noise control parameter, changing the far-end voice signal to improve articulation of the far-end voice signal based on information related to at least one of the voice signal change parameter, the near-end noise signal, or the anti-phase signal, and outputting the anti-phase signal and the changed far-end voice signal.