APPARATUS AND METHOD FOR CONCEALING FRAME ERASURE AND VOICE DECODING APPARATUS AND METHOD USING THE SAME
    1.
    发明申请
    APPARATUS AND METHOD FOR CONCEALING FRAME ERASURE AND VOICE DECODING APPARATUS AND METHOD USING THE SAME 有权
    用于保护框架擦除和声音解码装置的装置和方法及其使用方法

    公开(公告)号:US20120232888A1

    公开(公告)日:2012-09-13

    申请号:US13477461

    申请日:2012-05-22

    IPC分类号: G10L19/04

    摘要: An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.

    摘要翻译: 一种用于隐藏帧擦除的装置和方法,以及使用该帧擦除的语音解码装置和方法。 帧擦除隐藏装置包括:参数提取单元,确定语音分组中是否存在被擦除的帧,以及提取先前好帧的兴奋信号参数和线谱对参数; 以及擦除帧隐藏单元,如果存在擦除帧,则通过使用来自先前好帧的兴奋信号和线谱对参数的回归分析来恢复被擦除帧的兴奋信号和线谱对参数。 根据该方法和装置,通过回归分析预测和恢复被擦除的帧的参数,可以提高恢复的语音信号的质量,并且可以简化算法。

    Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same
    3.
    发明授权
    Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same 有权
    用于隐藏帧擦除和语音解码装置的方法和使用该方法的方法

    公开(公告)号:US08204743B2

    公开(公告)日:2012-06-19

    申请号:US11417165

    申请日:2006-05-04

    IPC分类号: G10L11/06

    摘要: An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.

    摘要翻译: 一种用于隐藏帧擦除的装置和方法,以及使用该帧擦除的语音解码装置和方法。 帧擦除隐藏装置包括:参数提取单元,确定语音分组中是否存在被擦除的帧,以及提取先前好帧的兴奋信号参数和线谱对参数; 以及擦除帧隐藏单元,如果存在擦除帧,则通过使用来自先前好帧的兴奋信号和线谱对参数的回归分析来恢复被擦除帧的兴奋信号和线谱对参数。 根据该方法和装置,通过回归分析预测和恢复被擦除的帧的参数,可以提高恢复的语音信号的质量,并且可以简化算法。

    Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same
    4.
    发明申请
    Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same 有权
    用于隐藏帧擦除和语音解码装置的方法和使用该方法的方法

    公开(公告)号:US20070027683A1

    公开(公告)日:2007-02-01

    申请号:US11417165

    申请日:2006-05-04

    IPC分类号: G10L19/00

    摘要: An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.

    摘要翻译: 一种用于隐藏帧擦除的装置和方法,以及使用该帧擦除的语音解码装置和方法。 帧擦除隐藏装置包括:参数提取单元,确定语音分组中是否存在被擦除的帧,以及提取先前好帧的兴奋信号参数和线谱对参数; 以及擦除帧隐藏单元,如果存在擦除帧,则通过使用来自先前好帧的兴奋信号和线谱对参数的回归分析来恢复被擦除帧的兴奋信号和线谱对参数。 根据该方法和装置,通过回归分析预测和恢复被擦除的帧的参数,可以提高恢复的语音信号的质量,并且可以简化算法。

    Scalable speech coding/decoding apparatus, method, and medium having mixed structure
    5.
    发明申请
    Scalable speech coding/decoding apparatus, method, and medium having mixed structure 有权
    可扩展语音编码/解码装置,方法和具有混合结构的介质

    公开(公告)号:US20070033023A1

    公开(公告)日:2007-02-08

    申请号:US11490139

    申请日:2006-07-21

    IPC分类号: G10L19/02

    摘要: Provided are a scalable wide-band speech coding/decoding apparatus, method, and medium. An input wide-band speech input signal is first divided into a low-band signal and a high-band signal. The divided low-band signal is then coded using a code excited linear prediction (CELP) method. The divided high-band signal is coded using a harmonic method. A signal representing a difference between a synthetic signal obtained from the low-band and the high band, and a signal input to the low-band and the high-band is then coded using a modified discrete cosine transform (MDCT) method. The coded signal is then multiplexed. The multiplexed signal is then output. Accordingly, high quality speech can be achieved for all layers.

    摘要翻译: 提供了一种可扩展的宽带语音编码/解码装置,方法和媒体。 输入宽带语音输入信号首先被分成低频带信号和高频带信号。 然后使用码激励线性预测(CELP)方法对分频的低频带信号进行编码。 分频高频信号采用谐波法编码。 然后,使用修正的离散余弦变换(MDCT)方法对表示从低频带和高频带获得的合成信号之间的差异以及输入到低频带和高频带的信号进行编码的信号。 然后对编码信号进行多路复用。 然后输出复用的信号。 因此,可以实现对所有层的高质量语音。

    Audio coding and decoding apparatuses and methods, and recording media storing the methods
    8.
    发明申请
    Audio coding and decoding apparatuses and methods, and recording media storing the methods 失效
    音频编码和解码装置和方法,以及存储方法的记录介质

    公开(公告)号:US20060217975A1

    公开(公告)日:2006-09-28

    申请号:US11337487

    申请日:2006-01-24

    IPC分类号: G10L21/02

    CPC分类号: G10L19/0208 G10L19/093

    摘要: Audio coding and decoding apparatuses and methods which support fine granularity scalability (FGS) using harmonic information of a high-band audio signal or wideband error audio signal when performing wideband audio coding and decoding, and recording mediums on which the methods are stored. The audio coding method includes detecting harmonics of a high-band audio signal or wideband error audio signal of an input audio signal; determining an order of the detected harmonics; and coding the detected harmonics based on the determined order.

    摘要翻译: 在执行宽带音频编码和解码时使用高频带音频信号或宽带误差音频信号的谐波信息支持精细粒度可伸缩性(FGS)的音频编码和解码装置和方法,以及存储方法的记录介质。 音频编码方法包括检测输入音频信号的高频带音频信号或宽带误差音频信号的谐波; 确定检测到的谐波的顺序; 并根据确定的顺序对检测到的谐波进行编码。

    Method, apparatus, and medium for classifying speech signal and method, apparatus, and medium for encoding speech signal using the same
    10.
    发明授权
    Method, apparatus, and medium for classifying speech signal and method, apparatus, and medium for encoding speech signal using the same 有权
    用于对语音信号进行分类的方法,装置和介质以及使用其编码语音信号的方法,装置和介质

    公开(公告)号:US08175869B2

    公开(公告)日:2012-05-08

    申请号:US11480449

    申请日:2006-07-05

    IPC分类号: G10L19/00

    CPC分类号: G10L19/22 G10L19/022

    摘要: A method, apparatus, and medium for classifying a speech signal and a method, apparatus, and medium for encoding the speech signal using the same are provided. The method for classifying a speech signal includes calculating classification parameters from an input signal having block units, calculating a plurality of classification criteria from the classification parameters, and classifying the level of the input signal using the plurality of classification criteria. The classification parameters include at least one of an energy parameter of the input signal, a cross-correlation parameter between a specific block of a present frame and the input signal, and an integrated cross-correlation parameter obtained by accumulating the cross-correlation parameter.

    摘要翻译: 提供了一种用于对语音信号进行分类的方法,装置和媒体,以及使用该语音信号编码语音信号的方法,装置和媒体。 用于分类语音信号的方法包括从具有块单位的输入信号计算分类参数,从分类参数计算多个分类标准,以及使用多个分类标准对输入信号的等级进行分类。 分类参数包括输入信号的能量参数,当前帧的特定块与输入信号之间的互相关参数,以及通过累加互相关参数而获得的积分互相关参数中的至少一个。