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：US20090210236A1

公开(公告)日：2009-08-20

申请号：US12389639

申请日：2009-02-20

Applicant: Han-gil MOON ,  Geon-hyoung LEE ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

Inventor： Han-gil MOON ,  Geon-hyoung LEE ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

IPC: G10L19/00

CPC classification number: G10L19/008

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090198499A1

公开(公告)日：2009-08-06

申请号：US12174936

申请日：2008-07-17

Applicant: Chul-woo LEE ,  Geon-hyoung LEE ,  Jong-hoon JEONG ,  Nam-suk LEE ,  Han-gil MOON

Inventor： Chul-woo LEE ,  Geon-hyoung LEE ,  Jong-hoon JEONG ,  Nam-suk LEE ,  Han-gil MOON

IPC: G10L19/00

CPC classification number: G10L19/08 ,  G10L19/025

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090063163A1

公开(公告)日：2009-03-05

申请号：US12186128

申请日：2008-08-05

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

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

IPC: G10L19/00

CPC classification number: G10L19/093 ,  G10L19/09

Abstract: Provided are a method and apparatus for encoding/decoding a media signal. The method of encoding a media signal includes: when harmonics exist in a sinusoid of a previous frame section, predicting a harmonic frequency of a current frame section that is to be encoded by using a harmonic frequency of the previous frame section, and generating a residual signal by using a difference between the predicted frequency and an actual harmonic frequency of the current frame section.

Abstract translation: 提供了一种用于对媒体信号进行编码/解码的方法和装置。 编码媒体信号的方法包括：当在前一帧部分的正弦波中存在谐波时，通过使用前一帧部分的谐波频率来预测要编码的当前帧部分的谐波频率，并产生残差 通过使用预测频率与当前帧部分的实际谐波频率之间的差来产生信号。

公开(公告)号：US20090063162A1

公开(公告)日：2009-03-05

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: G10L19/00

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：US20090048849A1

公开(公告)日：2009-02-19

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

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：US20080189120A1

公开(公告)日：2008-08-07

申请号：US12021760

申请日：2008-01-29

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: G10L19/025

Abstract: A method of and apparatus for parametric encoding and parametric decoding are provided. According to the method and apparatus, not all parameters for all component signals are generated and according to a time interval, parameters for some component signals are replaced by index information allowing similar previous time intervals to be found, thereby increasing encoding efficiency.

Abstract translation: 提供了一种用于参数编码和参数解码的方法和装置。 根据该方法和装置，不是产生所有分量信号的所有参数，并且根据时间间隔，一些分量信号的参数由索引信息代替，允许找到相似的先前时间间隔，从而提高编码效率。

公开(公告)号：US20130064377A1

公开(公告)日：2013-03-14

申请号：US13614920

申请日：2012-09-13

Applicant: Nam-suk LEE ,  Chul-Woo LEE

Inventor： Nam-suk LEE ,  Chul-Woo LEE

IPC: H04R5/00

CPC classification number: H04S1/00 ,  H04S2400/03 ,  H04S2420/07

Abstract: An encoding apparatus includes a down-mixing unit for down-mixing first and second input signals, and controlling a spatial parameter comprising or not comprising a first parameter which indicates a correlation between the first and second input signals to be transmitted to a decoding apparatus according to whether any one of the first and second input signals has a magnitude that is equal to or less than a predetermined threshold value; and a transmitting unit for transmitting the spatial parameter to the decoding apparatus.

Abstract translation: 一种编码装置包括：下混合单元，用于对第一和第二输入信号进行降混，并且控制包括或不包括第一参数的空间参数，第一参数指示要发送到解码装置的第一和第二输入信号之间的相关性， 涉及第一和第二输入信号中的任何一个是否具有等于或小于预定阈值的幅度; 以及发送单元，用于将空间参数发送到解码装置。

公开(公告)号：US20110040566A1

公开(公告)日：2011-02-17

申请号：US12831353

申请日：2010-07-07

Applicant: Han-gil MOON ,  Nam-suk LEE

Inventor： Han-gil MOON ,  Nam-suk LEE

IPC: G10L19/00

CPC classification number: G10L19/008 ,  G10L19/0204

Abstract: A residual signal decoding method including dividing a signal into a plurality of sub-bands in a frequency domain, wherein the signal is in a residual signal and is encoded with respect to an effective residual signal exceeding a masking curve that is generated with respect to a multi-channel audio signal, transforming the frequency domain into a time domain, and restoring the signal as an effective residual signal by synthesizing signals of the domain-transformed sub-bands.

Abstract translation: 一种残差信号解码方法，包括将信号划分成频域中的多个子带，其中所述信号是残差信号，并且相对于超过相对于 多频道音频信号，将频域变换成时域，并通过合成域变换子带的信号将信号恢复为有效残留信号。

公开(公告)号：US20120035939A1

公开(公告)日：2012-02-09

申请号：US13204179

申请日：2011-08-05

Applicant: Nam-suk LEE ,  Jong-hoon JEONG ,  Han-gil MOON ,  Hyun-wook KIM

Inventor： Nam-suk LEE ,  Jong-hoon JEONG ,  Han-gil MOON ,  Hyun-wook KIM

IPC: G10L21/00

CPC classification number: G10L19/008 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

Abstract: A method processing a signal, an encoding apparatus, and a decoding apparatus are provided. The method of processing a signal includes restoring a down-mixed original signal using a re-quantized prediction parameter to generate a restored signal in an encoding apparatus; generating mute information indicating whether the down-mixed original signal has been muted, according to a value of the restored signal; and transmitting the mute information and the down-mixed original signal from the encoding apparatus to a decoding apparatus.

Abstract translation: 提供一种处理信号的方法，编码装置和解码装置。 处理信号的方法包括使用重新量化的预测参数恢复下混合的原始信号，以在编码装置中产生恢复的信号; 根据恢复信号的值产生指示下混合原始信号是否被静音的静音信息; 以及将来自编码装置的静音信息和下混合原始信号发送到解码装置。