公开(公告)号：US20080189119A1

公开(公告)日：2008-08-07

申请号：US12026733

申请日：2008-02-06

Applicant: Jae-one OH ,  Geon-hyoung LEE ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

Inventor： Jae-one OH ,  Geon-hyoung LEE ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

IPC: G10L19/00

CPC classification number: G10L19/26 ,  G10L19/0204 ,  G10L21/0364 ,  H03G5/005

Abstract: A method of implementing an equalizer in an audio signal decoder and an apparatus therefor are provided. According to the method and apparatus, a signal output from an audio signal decoder is not processed by an equalizer, but the values of frequency components are adjusted according to a user's input before subband sample data is transformed into a frequency domain signal in an audio signal decoder, thereby implementing an equalizer in a codec. In this way, the complexity of implementing an apparatus for reproducing an audio signal can be reduced and delay of an equalizer can be reduced.

Abstract translation: 提供了一种在音频信号解码器及其装置中实现均衡器的方法。 根据该方法和装置，由音频信号解码器输出的信号不由均衡器处理，但是在将子带采样数据变换成音频信号中的频域信号之前，根据用户的输入来调整频率分量的值 解码器，从而在编解码器中实现均衡器。 以这种方式，可以减少实现用于再现音频信号的装置的复杂性，并且可以减小均衡器的延迟。

公开(公告)号：US20080189118A1

公开(公告)日：2008-08-07

申请号：US12024381

申请日：2008-02-01

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

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

IPC: G10L19/00

CPC classification number: G10L19/0212 ,  G10L19/022

Abstract: An audio encoding and decoding apparatus and a method thereof, capable of improving compression efficiency, by using coefficients that are stable over a period of time and in a range of frequency bands, are provided. The audio encoding method divides an input audio signal into frames having lengths different from each other; obtaining at least one magnitude in relation to each of the frames having different lengths; and encoding the magnitude. The audio decoding method separates at least one encoded magnitude in relation to each of frames having different lengths, based on the frame length; decoding each of the separated encoded magnitudes; and restoring an audio signal by using the decoded magnitude.

Abstract translation: 提供一种能够通过使用在一段时间内和频带范围内稳定的系数来提高压缩效率的音频编码和解码装置及其方法。 音频编码方法将输入音频信号分成具有彼此不同长度的帧; 相对于具有不同长度的每个帧获得至少一个幅度; 并编码大小。 音频解码方法基于帧长度分离与每个具有不同长度的帧相关联的编码幅度; 解码每个分离的编码幅度; 并通过使用解码的幅度恢复音频信号。

公开(公告)号：US20080189117A1

公开(公告)日：2008-08-07

申请号：US12017422

申请日：2008-01-22

Applicant: Jae-one OH ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

Inventor： Jae-one OH ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

IPC: G10L19/00

CPC classification number: G10L19/093

Abstract: A method and apparatus for decoding a parametric-encoded audio signal are provided. According to the present invention, parameters extracted from a bitstream of a parametric encoded audio signal are adjusted by a user and component signals are synthesized based on the adjusted parameters to be displayed to a user so that a user can adjust the amplitudes of the component signals to apply various sound effects according to the user's desire. In addition, since an equalizer function is embodied in a codec of an audio reproduction apparatus, additional equalizer modules are not required and thus complexity of the audio reproduction apparatus can be reduced.

Abstract translation: 提供了一种用于解码参数编码音频信号的方法和装置。 根据本发明，由参数编码的音频信号的比特流提取的参数由用户调整，并且分量信号基于被调整的参数被合成以被显示给用户，使得用户可以调整分量信号的幅度 根据用户的需要应用各种音效。 此外，由于在音频再现装置的编解码器中实现均衡器功能，因此不需要附加的均衡器模块，因此可以减少音频再现装置的复杂性。

公开(公告)号：US20080162149A1

公开(公告)日：2008-07-03

申请号：US11954286

申请日：2007-12-12

Applicant: Geon-hyoung LEE ,  Jae-one OH ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

Inventor： Geon-hyoung LEE ,  Jae-one OH ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

IPC: G10L21/04

CPC classification number: G10L19/093 ,  G10L19/0212

Abstract: Provided are audio encoding and decoding apparatuses capable of recovering a high-quality audio signal at a low bit rate. The audio encoding method includes: detecting at least one sinusoidal wave from an input audio signal; calculating components of additional basis vectors based on residual audio signals and the additional basis vectors of the sinusoidal wave; determining transmission of components of the additional basis vectors; and at least one of (a) encoding frequencies and (b) phases and amplitudes of the sinusoidal waves when the transmission of the components of the additional basis vectors are determined, wherein the residual audio signals are obtained by excluding the detected sinusoidal waves from the input audio signal.

Abstract translation: 提供能够以低比特率恢复高质量音频信号的音频编码和解码装置。 该音频编码方法包括：从输入音频信号中检测至少一个正弦波; 基于剩余音频信号和正弦波的附加基矢量来计算附加基矢量的分量; 确定附加基本向量的分量的传输; 并且当确定附加基矢量的分量的传输时，（a）编码频率和（b）正弦波的相位和振幅中的至少一个，其中残留音频信号是通过将检测到的正弦波从 输入音频信号。

公开(公告)号：US08725519B2

公开(公告)日：2014-05-13

申请号：US11954286

申请日：2007-12-12

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

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

IPC: G01L19/00 ,  G01L21/00

CPC classification number: G10L19/093 ,  G10L19/0212

Abstract: Provided are audio encoding and decoding apparatuses capable of recovering a high-quality audio signal at a low bit rate. The audio encoding method includes: detecting at least one sinusoidal wave from an input audio signal; calculating components of additional basis vectors based on residual audio signals and the additional basis vectors of the sinusoidal wave; determining transmission of components of the additional basis vectors; and at least one of (a) encoding frequencies and (b) phases and amplitudes of the sinusoidal waves when the transmission of the components of the additional basis vectors are determined, wherein the residual audio signals are obtained by excluding the detected sinusoidal waves from the input audio signal.

Abstract translation: 提供能够以低比特率恢复高质量音频信号的音频编码和解码装置。 音频编码方法包括：从输入音频信号中检测至少一个正弦波; 基于剩余音频信号和正弦波的附加基矢量来计算附加基矢量的分量; 确定附加基本向量的分量的传输; 并且当确定附加基矢量的分量的传输时，（a）编码频率和（b）正弦波的相位和振幅中的至少一个，其中残留音频信号是通过将检测到的正弦波从 输入音频信号。

公开(公告)号：US08473302B2

公开(公告)日：2013-06-25

申请号：US12170819

申请日：2008-07-10

Applicant: Geon-hyoung Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

Inventor： Geon-hyoung Lee ,  Jong-hoon Jeong ,  Nam-suk Lee

IPC: G10L21/04

CPC classification number: G10L19/093

Abstract: Provided are parametric audio encoding and decoding apparatuses and methods thereof. In the parametric audio encoding method, an audio signal is segmented into a plurality of segments. At least one sine wave is extracted from each of the segments, and the extracted sine waves are connected. It is determined whether an extracted sine wave is a birth sine wave. If the extracted sine wave is a birth sine wave, a bit stream is generated by encoding the phase of the birth sine wave on the basis of the frequency of the birth sine wave, wherein the number of bits allocated to encode the phase of the birth sine wave is adjusted according to the frequency of the birth sine wave.

Abstract translation: 提供了参数音频编码和解码装置及其方法。 在参数音频编码方法中，音频信号被分割成多个片段。 从每个段提取至少一个正弦波，并且提取的正弦波被连接。 确定提取的正弦波是否是出生正弦波。 如果提取的正弦波是出生正弦波，则通过根据出生正弦波的频率编码出生正弦波的相位来产生比特流，其中分配用于编码出生阶段的比特数 正弦波根据出生正弦波的频率进行调整。

公开(公告)号：US08438017B2

公开(公告)日：2013-05-07

申请号：US12361940

申请日：2009-01-29

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

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

IPC: G10L19/00

CPC classification number: G10L19/025 ,  G10L19/04

Abstract: Provided are a method and apparatus for encoding or decoding an audio signal by adaptively interpolating a linear predictive coding (LPC) coefficient. In the method and apparatus of encoding or decoding an audio signal, LPC coefficient interpolation is selectively performed depending on whether a transient section is present in a current frame, thereby preventing noise from occurring when interpolating LPC coefficients in the transient section.

Abstract translation: 提供了一种通过自适应地内插线性预测编码（LPC）系数来对音频信号进行编码或解码的方法和装置。 在对音频信号进行编码或解码的方法和装置中，根据在当前帧中是否存在瞬态部分来选择性地执行LPC系数内插，从而防止在对瞬态部分内插LPC系数时产生噪声。

公开(公告)号：US08422560B2

公开(公告)日：2013-04-16

申请号：US12107888

申请日：2008-04-23

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

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

IPC: H04N7/12

CPC classification number: H04N21/435 ,  H04N21/235 ,  H04N21/23892 ,  H04N21/6332 ,  H04N21/6336 ,  H04N21/654 ,  H04N21/6547

Abstract: A method and apparatus for encoding/decoding a media signal. The method of decoding a media signal includes extracting first table index information from a header. The first table index information indicates M (M

Abstract translation: 一种用于对媒体信号进行编码/解码的方法和装置。 解码媒体信号的方法包括从头部提取第一表索引信息。 第一表索引信息指示从N个表中的帧基本上参考的M（M

公开(公告)号：US08224659B2

公开(公告)日：2012-07-17

申请号：US12174875

申请日：2008-07-17

Applicant: Nam-suk Lee ,  Geon-hyoung Lee

Inventor： Nam-suk Lee ,  Geon-hyoung Lee

IPC: G10L19/00 ,  G10L15/00 ,  G10L11/04

CPC classification number: G10L19/093

Abstract: An audio encoding method and apparatus, and an audio decoding method and apparatus, for processing a death sinusoid and a general continuation sinusoid. Using the unique characteristic of a death sinusoid, in that the death sinusoid has a tendency such that an amplitude component of the death sinusoid is less than that of a previous sinusoid, a method of adding an encoding syntax by distinguishing a general continuation sinusoid from a death sinusoid is provided. That is, when difference coding of the amplitude component of a death sinusoid is performed, the number of bits used when a negative number is coded is less than the number of bits used when a positive number is coded, in a Huffman table. By using this method, a bit rate in an entire coding decreases.

Abstract translation: 一种用于处理死亡正弦曲线和一般持续正弦曲线的音频编码方法和装置以及音频解码方法和装置。 使用死亡正弦曲线的独特特征，因为死亡正弦曲线具有使得死亡正弦曲线的幅度分量小于先前正弦曲线的幅度分量的趋势，一种通过将一般的连续正弦曲线与 提供死亡正弦曲线。 也就是说，当执行死亡正弦曲线的振幅分量的差分编码时，当编码负数时使用的位数小于霍夫曼表中正数编码时所使用的位数。 通过使用该方法，整个编码中的比特率降低。

公开(公告)号：US08165871B2

公开(公告)日：2012-04-24

申请号：US12131446

申请日：2008-06-02

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

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

IPC: G10L19/00

CPC classification number: G10L19/093

Abstract: 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).

Abstract translation: 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。