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    Method and apparatus for frequency encoding, and method and apparatus for frequency decoding
    1.
    发明授权
    Method and apparatus for frequency encoding, and method and apparatus for frequency decoding 有权
    用于频率编码的方法和装置，以及用于频率解码的方法和装置

    公开(公告)号：US08392177B2

    公开(公告)日：2013-03-05

    申请号：US12363937

    申请日：2009-02-02

    申请人： Nam-suk Lee ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Han-gil Moon

    发明人： Nam-suk Lee ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Han-gil Moon

    IPC分类号： G10L19/14

    CPC分类号： G10L19/093

    摘要： Provided are a method and apparatus for encoding the frequency of a continuation sinusoidal signal and a method and apparatus for decoding the same. In the encoding method, a continuation sinusoidal signal successive to a sinusoidal signal in a previous section is extracted from a current section; a frequency of the continuation sinusoidal signal at the boundary between the current and previous sections is changed to a first frequency, based on representative frequencies of the continuation sinusoidal signal and at least one sinusoidal signal that belongs to a section adjacent to the current section and is successive to the continuation sinusoidal signal; and the first frequency is encoded.

    摘要翻译： 提供一种用于对连续正弦信号的频率进行编码的方法和装置，以及用于对其进行解码的方法和装置。 在编码方法中，从当前部分提取与前一部分中的正弦信号连续的连续正弦信号; 基于连续正弦信号的代表频率和属于与当前部分相邻的部分的至少一个正弦信号，在当前部分和前一部分之间的边界处的连续正弦信号的频率被改变为第一频率，并且是 连续的正弦信号; 并且第一频率被编码。

    Method and apparatus for encoding residual signals and method and apparatus for decoding residual signals
    3.
    发明授权
    Method and apparatus for encoding residual signals and method and apparatus for decoding residual signals 有权
    用于编码残留信号的方法和装置以及用于解码残余信号的方法和装置

    公开(公告)号：US08843380B2

    公开(公告)日：2014-09-23

    申请号：US12174936

    申请日：2008-07-17

    申请人： Chul-woo Lee ,  Geon-hyoung Lee ,  Jong-hoon Jeong ,  Nam-suk Lee ,  Han-gil Moon

    发明人： Chul-woo Lee ,  Geon-hyoung Lee ,  Jong-hoon Jeong ,  Nam-suk Lee ,  Han-gil Moon

    IPC分类号： G10L19/00 ,  G10L19/08 ,  G10L19/025

    CPC分类号： G10L19/08 ,  G10L19/025

    摘要： Encoding and decoding of residual signals are provided. In a method of encoding a residual signal of an audio signal, the residual signal is divided into a plurality of sections having different sizes, based on a change of the residual signal. Then, section division information representing information about the divided sections and section-by-section residual signal information representing characteristics of the sections of the residual signal are acquired. Thereafter, the residual signal is encoded based on the section division information and the section-by-section residual signal information.

    摘要翻译： 提供残留信号的编码和解码。 在对音频信号的残差信号进行编码的方法中，残差信号根据残差信号的变化被划分为具有不同大小的多个部分。 然后，获取表示关于分割部分的信息的部分分割信息和表示残留信号的各部分的特征的逐段残差信号信息。 此后，基于区段分割信息和逐段残差信号对剩余信号进行编码。

    Method and apparatus for encoding/decoding stereo audio
    4.
    发明授权
    Method and apparatus for encoding/decoding stereo audio 有权
    用于对立体声音频进行编码/解码的方法和装置

    公开(公告)号：US08538762B2

    公开(公告)日：2013-09-17

    申请号：US12389639

    申请日：2009-02-20

    申请人： Han-gil Moon ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

    发明人： Han-gil Moon ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

    IPC分类号： G10L19/00

    CPC分类号： G10L19/008

    摘要： Provided are a method and apparatus for encoding/decoding stereo audio. In the method for encoding stereo audio, stereo audio is encoded based on at least one of the phase difference between first and second channel audios and information on an angle made by a vector on the intensity of mono-audio and a vector on the intensity of the first channel audio or a vector on the intensity of the second channel audio. Thus, the number of encoded parameters is minimized so that a compression ratio in the encoding of the stereo audio is improved.

    摘要翻译： 提供了一种用于对立体声音频进行编码/解码的方法和装置。 在对立体声音频进行编码的方法中，基于第一和第二声道音频之间的相位差中的至少一个以及由矢量对单声道的强度和向量的角度的信息对立体声音频进行编码， 第一声​​道音频或第二声道音频强度的向量。 因此，编码参数的数量被最小化，从而提高了立体声音频的编码中的压缩率。

    Encoding method and apparatus for efficiently encoding sinusoidal signal whose magnitude is less than masking value according to psychoacoustic model and decoding method and apparatus for decoding encoded sinusoidal signal
    7.
    发明授权
    Encoding method and apparatus for efficiently encoding sinusoidal signal whose magnitude is less than masking value according to psychoacoustic model and decoding method and apparatus for decoding encoded sinusoidal signal 有权
    编码方法和装置，用于根据心理声学模型有效地编码其幅度小于掩蔽值的正弦信号，以及用于解码编码的正弦信号的解码方法和装置

    公开(公告)号：US08165871B2

    公开(公告)日：2012-04-24

    申请号：US12131446

    申请日：2008-06-02

    申请人： Nam-suk Lee ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Han-gil Moon

    发明人： Nam-suk Lee ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Han-gil Moon

    IPC分类号： G10L19/00

    CPC分类号： G10L19/093

    摘要： Provided are an encoding method and apparatus for efficiently encoding a sinusoidal signal whose magnitude is less than a masking value according to a psychoacoustic model, a decoding method and apparatus for decoding an encoded sinusoidal signal, and a computer-readable recording medium having recorded thereon a program for executing the encoding method/the decoding method. By using a particular code indicating that the magnitude of a first sinusoidal signal is less than a masking value according to a psychoacoustic model to encode the first sinusoidal signal, difference coding for a third sinusoidal signal of a next frame, which is connected to the first sinusoidal signal, is performed using a sinusoidal signal or sinusoidal signals selected according to a method to use the particular code, and a decoding apparatus obtains a sum with a transmitted difference using the selected sinusoidal signal(s).

    摘要翻译： 提供了一种编码方法和装置，用于根据心理声学模型有效地编码其幅度小于掩蔽值的正弦信号，用于对编码的正弦信号进行解码的解码方法和装置，以及在其上记录有编码的正弦信号的计算机可读记录介质 用于执行编码方法/解码方法的程序。 通过使用指示第一正弦信号的幅度小于根据心理声学模型编码第一正弦信号的屏蔽值的特定码，对于连接到第一正弦信号的下一帧的第三正弦信号的差编码 使用根据使用特定码的方法选择的正弦信号或正弦信号来执行正弦信号，并且解码装置使用所选择的正弦信号来获得具有发送差的和。

    Method and apparatus for coding and decoding amplitude of partial
    8.
    发明授权
    Method and apparatus for coding and decoding amplitude of partial 有权
    用于编码和解码部分幅度的方法和装置

    公开(公告)号：US08296137B2

    公开(公告)日：2012-10-23

    申请号：US11952547

    申请日：2007-12-07

    申请人： Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

    发明人： Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

    IPC分类号： G10L19/00

    CPC分类号： G10L19/035 ,  G10L19/093

    摘要： Provided are a method and apparatus for coding and decoding an amplitude of partials, in which a step phenomenon can be prevented in the result of coding the amplitude of continuation partial partials in a parametric codec, thereby improving reproduced sound quality. The method of coding the amplitude of partials includes obtaining an inversely quantized amplitude of partials of a previous frame, determining a quantization level based on a function for the inversely quantized amplitude of the partials of the previous frame, and quantizing an amplitude of partials of a current frame based on the determined quantization level.

    摘要翻译： 提供了一种用于对部分幅度进行编码和解码的方法和装置，其中在参数编解码器中对连续部分部分的幅度进行编码的结果中可以防止步进现象，从而改善再现的音质。 编码部分幅度的方法包括获得前一帧的部分的逆量化幅度，基于前一帧的部分的逆量化幅度的函数确定量化级，以及量化幅度的部分的幅度 基于所确定的量化级别的当前帧。

    Method and apparatus for sinusoidal audio coding
    9.
    发明授权
    Method and apparatus for sinusoidal audio coding 有权
    用于正弦音频编码的方法和装置

    公开(公告)号：US08290770B2

    公开(公告)日：2012-10-16

    申请号：US12026066

    申请日：2008-02-05

    申请人： Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

    发明人： Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

    IPC分类号： G10L19/14

    CPC分类号： G10L19/093

    摘要： Provided are a method and apparatus for sinusoidal audio coding, which employs a tracking method for further effective coding of sinusoids extracted in the process of a sinusoidal analysis of parametric coding. The sinusoidal audio coding method includes: extracting sinusoids of a current frame by performing a sinusoidal analysis on an input audio signal; with respect to each of the extracted sinusoids, setting a mode selected from a birth mode in which a sinusoid is newly generated irrespective of sinusoids of a previous frame, a continuation mode in which the sinusoid is only one sinusoid continued from one of the sinusoids of the previous frame, and a branch mode in which the sinusoid is one of a plurality of sinusoids continued from one of the sinusoids of the previous frame; and coding the extracted sinusoids according to the selected mode. Accordingly, a plurality of sinusoids that can be continued from one previous track component are set to the continuation mode or the branch mode. Therefore, the number of bits of coded data is significantly reduced, compared with the case of the birth mode.

    摘要翻译： 提供了一种用于正弦音频编码的方法和装置，其采用跟踪方法用于在参数编码的正弦分析的过程中提取的正弦曲线的进一步有效编码。 正弦音频编码方法包括：通过对输入音频信号执行正弦分析来提取当前帧的正弦曲线; 对于每个提取的正弦曲线，设定选自新生成正弦曲线的诞生模式的模式，而不管前一帧的正弦曲线，其中正弦曲线仅仅是一个正弦曲线的连续模式，其中一个正弦曲线从 前一帧，以及分支模式，其中正弦曲线是从前一帧的正弦曲线之一连续的多个正弦曲线之一; 并根据所选择的模式对所提取的正弦曲线进行编码。 因此，可以从一个先前的轨道分量继续的多个正弦曲线被设置为连续模式或分支模式。 因此，与出生模式的情况相比，编码数据的位数显着减少。

    METHOD AND APPARATUS FOR ENCODING/DECODING AUDIO SIGNAL CONTAINING NOISE AT LOW BIT RATE
    10.
    发明申请
    METHOD AND APPARATUS FOR ENCODING/DECODING AUDIO SIGNAL CONTAINING NOISE AT LOW BIT RATE 审中-公开
    用于编码/解码低比特率下含有噪声的音频信号的方法和装置

    公开(公告)号：US20080228500A1

    公开(公告)日：2008-09-18

    申请号：US12015698

    申请日：2008-01-17

    申请人： Jae-one Oh ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

    发明人： Jae-one Oh ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

    IPC分类号： G10L19/00

    CPC分类号： G10L19/0208 ,  G10L19/028

    摘要： A method and apparatus for encoding/decoding audio signals at a low bit rate are provided. The encoding apparatus selectively encodes one or more reference samples having the highest amplitudes among frequency samples of an audio signal, determines amplitudes of the remaining samples other than the reference sample according to a predetermined pattern, using a predetermined random function, and then encodes the remaining samples using random function input information for causing the same pattern to be generated using the same random function, thus maximizing an encoding rate for an audio signal having a large amount of noise.

    摘要翻译： 提供了一种用于以低比特率对音频信号进行编码/解码的方法和装置。 编码装置对音频信号的频率样本中具有最高幅度的一个或多个参考样本进行选择性编码，使用预定的随机函数根据预定的模式确定除了参考样本之外的剩余样本的幅度，然后对其余的样本进行编码 使用随机函数输入信息的样本，以使得使用相同的随机函数产生相同的图案，从而最大化具有大量噪声的音频信号的编码率。