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    Audio encoding and decoding apparatus and method using psychoacoustic frequency
    11.
    发明授权
    Audio encoding and decoding apparatus and method using psychoacoustic frequency 失效
    音频编解码装置及方法采用心理声学频率

    公开(公告)号：US08055506B2

    公开(公告)日：2011-11-08

    申请号：US12023410

    申请日：2008-01-31

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

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

    IPC分类号： G10L11/04

    CPC分类号： G10L19/093

    摘要： Provided is an audio encoding and decoding apparatus and method for improving a compression ratio while maintaining sound quality when sinusoidal waves of an audio signal are connected and encoded. The audio encoding method includes connecting sinusoidal waves of an input audio signal, converting a frequency of each of the connected sinusoidal waves to a psychoacoustic frequency, performing a first encoding operation for encoding the psychoacoustic frequency, performing a second encoding operation for encoding an amplitude of each of the connected sinusoidal waves, and outputting an encoded audio signal comprising the encoding result of the first encoding operation and the encoding result of the second encoding operation.

    摘要翻译： 提供了一种用于在音频信号的正弦波被连接和编码的同时保持声音质量的同时改善压缩比的音频编码和解码装置和方法。 音频编码方法包括连接输入音频信号的正弦波，将连接的正弦波中的每一个的频率转换为心理声学频率，执行用于对心理声学频率进行编码的第一编码操作，执行第二编码操作， 每个连接的正弦波，并且输出包括第一编码操作的编码结果和第二编码操作的编码结果的编码音频信号。

    Method and apparatus for encoding envelopes of harmonic signals and method and apparatus for decoding envelopes of harmonic signals
    12.
    发明授权
    Method and apparatus for encoding envelopes of harmonic signals and method and apparatus for decoding envelopes of harmonic signals 失效
    用于对谐波信号包络进行编码的方法和装置以及用于解码谐波信号包络的方法和装置

    公开(公告)号：US08024180B2

    公开(公告)日：2011-09-20

    申请号：US12022581

    申请日：2008-01-30

    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： G10L19/02 ,  G10L11/04

    CPC分类号： G10L19/093

    摘要： Provided are a methods and apparatuses for encoding/decoding an audio signal to efficiently encode/decode a harmonic envelope. The method of encoding an audio signal includes performing harmonic analysis with respect to an input signal to determine harmonic parameters with respect to harmonic signals; correlating the amplitudes of the harmonic signals to signals in a time domain instead of signals in a frequency domain; applying a time-frequency transformation operation to the amplitudes in the time domain to generate time-frequency transformed values in the frequency domain; and encoding the time-frequency transformed values. When expressing a harmonic envelope, the amplitudes of the harmonic signals are regarded as signals in the time domain so as to perform a time-frequency transformation and only a part from among the transformed values is selected to be encoded. Therefore, sound quality is not affected and coding efficiency greatly improves.

    摘要翻译： 提供了一种用于对音频信号进行编码/解码以有效地编码/解码谐波包络的方法和装置。 对音频信号进行编码的方法包括对输入信号执行谐波分析以确定相对于谐波信号的谐波参数; 将谐波信号的幅度与时域中的信号相关，而不是频域中的信号; 对时域中的振幅应用时频变换操作，以产生频域中的时频变换值; 并对时间 - 频率变换的值进行编码。 当表示谐波包络时，谐波信号的幅度被认为是时域中的信号，以便执行时间 - 频率变换，并且仅选择变换值中的一部分进行编码。 因此，音质不受影响，编码效率大大提高。

    METHOD AND APPARATUS FOR ENCODING AUDIO SIGNAL, AND METHOD AND APPARATUS FOR DECODING AUDIO SIGNAL
    13.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AUDIO SIGNAL, AND METHOD AND APPARATUS FOR DECODING AUDIO SIGNAL 失效
    用于编码音频信号的方法和装置，以及用于解码音频信号的方法和装置

    公开(公告)号：US20080235033A1

    公开(公告)日：2008-09-25

    申请号：US11962174

    申请日：2007-12-21

    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： G10L19/20 ,  G10L19/0204

    摘要： Methods and apparatuses for encoding and decoding of an audio signal using a mixture of a time-frequency method and a parametric method according to the audio band are provided. An encoding method of an audio signal includes: dividing input audio signals into a plurality of audio bands; selecting a coding method for each audio band; encoding each audio band according to the selected coding method for each band; and generating a bit stream including all the data encoded for each audio band, wherein selecting a coding method for each band comprises selecting smaller encoded data either from a parametric coding method or a time-frequency coding method.

    摘要翻译： 提供了使用根据音频带的时频方法和参数方法的混合来对音频信号进行编码和解码的方法和装置。 音频信号的编码方法包括：将输入音频信号划分为多个音频频带; 选择每个音频带的编码方法; 根据所选择的每个频带的编码方法对每个音频频带进行编码; 并且生成包括针对每个音频频带编码的所有数据的比特流，其中为每个频带选择编码方法包括从参数编码方法或时间 - 频率编码方法中选择较小的编码数据。

    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL
    14.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL 审中-公开
    编码和解码音频信号的方法和装置

    公开(公告)号：US20080181432A1

    公开(公告)日：2008-07-31

    申请号：US12014220

    申请日：2008-01-15

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

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

    IPC分类号： H04B15/00

    CPC分类号： H04S1/002

    摘要： Provided is a method of processing an audio signal. An apparatus for encoding an audio signal including: a reverberation signal analyzer analyzing reverberation signals included in an input audio signal and generating a filter coefficient; a reverberation signal remover removing the reverberation signals from the input audio signal using the filter coefficient; an audio encoder encoding the audio signal from which the reverberation signals are removed; and a signal combiner generating a signal that combines the encoded audio signal and the filter coefficient.

    摘要翻译： 提供了一种处理音频信号的方法。 一种用于对音频信号进行编码的装置，包括：混响信号分析器，分析包括在输入音频信号中的混响信号并产生滤波器系数; 混响信号去除器，使用滤波器系数从输入音频信号中去除混响信号; 编码去除了混响信号的音频信号的音频编码器; 以及信号组合器，其生成组合了编码音频信号和滤波器系数的信号。

    Method and apparatus for encoding continuation sinusoid signal information of audio signal and method and apparatus for decoding same
    15.
    发明授权
    Method and apparatus for encoding continuation sinusoid signal information of audio signal and method and apparatus for decoding same 有权
    对音频信号的连续正弦信号信息进行编码的方法和装置以及对其进行解码的方法和装置

    公开(公告)号：US08160869B2

    公开(公告)日：2012-04-17

    申请号：US12132299

    申请日：2008-06-03

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

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

    IPC分类号： G10L19/08

    CPC分类号： G10L19/093

    摘要： Provided are a method and apparatus for encoding an audio signal and a method and apparatus for decoding an audio signal. The method includes performing sinusoidal analysis on an audio signal in order to extract a sinusoidal signal of a current frame, determining continuation sinusoidal signal information indicating a number of continuation sinusoidal signals of next frames, which continue from the sinusoidal signal of the current frame, by performing sinusoidal tracking on the extracted sinusoidal signal of the current frame, and encoding the determined continuation sinusoidal signal information by using different Huffman tables according to index information of the current frame, thereby allowing efficient encoding with a low bitrate.

    摘要翻译： 提供了一种用于对音频信号进行编码的方法和装置以及用于对音频信号进行解码的方法和装置。 该方法包括对音频信号执行正弦分析以提取当前帧的正弦信号，确定指示从当前帧的正弦信号继续的下一帧的连续正弦信号的数量的连续正弦信号信息 对所提取的当前帧的正弦信号进行正弦跟踪，并且根据当前帧的索引信息通过使用不同的霍夫曼表来编码所确定的连续正弦信号信息，从而允许以低比特率进行有效编码。

    METHOD AND APPARATUS FOR ENCODING CONTINUATION SINUSOID SIGNAL INFORMATION OF AUDIO SIGNAL AND METHOD AND APPARATUS FOR DECODING SAME
    16.
    发明申请
    METHOD AND APPARATUS FOR ENCODING CONTINUATION SINUSOID SIGNAL INFORMATION OF AUDIO SIGNAL AND METHOD AND APPARATUS FOR DECODING SAME 有权
    用于编码音频信号的连续SINUSOID信号信息的方法和装置及其解码方法和装置

    公开(公告)号：US20090055197A1

    公开(公告)日：2009-02-26

    申请号：US12132299

    申请日：2008-06-03

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

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

    IPC分类号： G10L19/00

    CPC分类号： G10L19/093

    摘要： Provided are a method and apparatus for encoding an audio signal and a method and apparatus for decoding an audio signal. The method includes performing sinusoidal analysis on an audio signal in order to extract a sinusoidal signal of a current frame, determining continuation sinusoidal signal information indicating a number of continuation sinusoidal signals of next frames, which continue from the sinusoidal signal of the current frame, by performing sinusoidal tracking on the extracted sinusoidal signal of the current frame, and encoding the determined continuation sinusoidal signal information by using different Huffman tables according to index information of the current frame, thereby allowing efficient encoding with a low bitrate.

    摘要翻译： 提供了一种用于对音频信号进行编码的方法和装置以及用于对音频信号进行解码的方法和装置。 该方法包括对音频信号执行正弦分析以提取当前帧的正弦信号，确定指示从当前帧的正弦信号继续的下一帧的连续正弦信号的数量的连续正弦信号信息 对所提取的当前帧的正弦信号进行正弦跟踪，并且根据当前帧的索引信息通过使用不同的霍夫曼表来编码所确定的连续正弦信号信息，从而允许以低比特率进行有效编码。

    Method and apparatus for frequency encoding, and method and apparatus for frequency decoding
    18.
    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。