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    Method and apparatus for encoding multi-channel audio signal and method and apparatus for decoding multi-channel audio signal
    2.
    发明授权
    Method and apparatus for encoding multi-channel audio signal and method and apparatus for decoding multi-channel audio signal 有权
    用于编码多声道音频信号的方法和装置以及用于解码多声道音频信号的方法和装置

    公开(公告)号：US08798276B2

    公开(公告)日：2014-08-05

    申请号：US12761070

    申请日：2010-04-15

    申请人： Han-gil Moon ,  Chul-woo Lee

    发明人： Han-gil Moon ,  Chul-woo Lee

    IPC分类号： H04S3/02 ,  G10L19/008 ,  H04S5/02 ,  H04S3/00

    CPC分类号： G10L19/008

    摘要： A method and apparatus which encode multi-channel audio signals and a method and apparatus which decode multi-channel audio signals. When encoding, a downmixed audio signal, first additional information for restoring multi-channel audio signals from the downmixed audio signal, and second additional information representing characteristics of a residual signal are multiplexed. When decoding, restored multi-channel audio signals having a predetermined phase difference are combined using the second additional information, and an audio signal of each channel is corrected, in order to improve quality of the restored audio signals.

    摘要翻译： 编码多声道音频信号的方法和装置以及对多声道音频信号进行解码的方法和装置。 当编码时，下混合音频信号，用于从下混合音频信号恢复多声道音频信号的第一附加信息和表示残差信号特性的第二附加信息被多路复用。 当解码时，使用第二附加信息组合具有预定相位差的恢复的多声道音频信号，并校正每个声道的音频信号，以便提高恢复的音频信号的质量。

    Method and apparatus for encoding and decoding stereo audio
    3.
    发明授权
    Method and apparatus for encoding and decoding stereo audio 有权

    公开(公告)号：US08781134B2

    公开(公告)日：2014-07-15

    申请号：US12868248

    申请日：2010-08-25

    申请人： Han-gil Moon ,  Chul-woo Lee

    发明人： Han-gil Moon ,  Chul-woo Lee

    IPC分类号： H04R5/00

    CPC分类号： H04S1/007

    摘要： A method of encoding stereo audio that minimizes a number of pieces of side information required for parametric-encoding and parametric-decoding of the stereo audio. The side information may include parameters about interchannel intensity difference (IID), interchannel correlation (IC), overall phase difference (OPD), and interchannel phase difference (IPD), which are required to restore the mono audio to the stereo audio.

    Binaural decoder to output spatial stereo sound and a decoding method thereof
    4.
    发明授权
    Binaural decoder to output spatial stereo sound and a decoding method thereof 有权
    输出空间立体声的双耳解码器及其解码方法

    公开(公告)号：US08284946B2

    公开(公告)日：2012-10-09

    申请号：US11682485

    申请日：2007-03-06

    申请人： Han-gil Moon ,  Sun-min Kim ,  In-gyu Chun

    发明人： Han-gil Moon ,  Sun-min Kim ,  In-gyu Chun

    IPC分类号： H04R5/00

    CPC分类号： H04S7/30 ,  H04S1/00 ,  H04S3/008 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/07

    摘要： A binaural decoder for an MPEG surround stream, which decodes an MPEG surround stream into a stereo 3D signal, and a decoding method thereof. The method includes dividing a compressed audio stream and head related transfer function (HRTF) data into subbands, selecting predetermined subbands of the HRTF data divided into subbands and filtering the HRTF data to obtain the selected subbands, decoding the audio stream divided into subbands into a stream of multi-channel audio data with respect to subbands according to spatial additional information, and binaural-synthesizing the HRTF data of the selected subbands with the multi-channel audio data of corresponding subbands.

    摘要翻译： 用于将MPEG环绕流解码为立体声3D信号的MPEG环绕流的双耳解码器及其解码方法。 该方法包括将压缩音频流和头相关传输函数（HRTF）数据划分成子带，选择被分成子带的HRTF数据的预定子带，并对HRTF数据进行滤波以获得所选择的子带，将分成子带的音频流解码为 根据空间附加信息相对于子带的多声道音频数据流，以及使用相应子带的多声道音频数据对所选择的子带的HRTF数据进行双耳合成。

    METHOD OF PROCESSING SIGNAL, ENCODING APPARATUS THEREOF, DECODING APPARATUS THEREOF, AND SIGNAL PROCESSING SYSTEM
    5.
    发明申请
    METHOD OF PROCESSING SIGNAL, ENCODING APPARATUS THEREOF, DECODING APPARATUS THEREOF, AND SIGNAL PROCESSING SYSTEM 有权
    信号处理方法，编码装置及其解码装置及信号处理系统

    公开(公告)号：US20120035939A1

    公开(公告)日：2012-02-09

    申请号：US13204179

    申请日：2011-08-05

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

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

    IPC分类号： G10L21/00

    CPC分类号： G10L19/008 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

    摘要： 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.

    摘要翻译： 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。

    DECODING METHOD AND DECODING APPARATUS THEREFOR
    6.
    发明申请
    DECODING METHOD AND DECODING APPARATUS THEREFOR 有权
    解码方法及其解码设备

    公开(公告)号：US20120035937A1

    公开(公告)日：2012-02-09

    申请号：US13198763

    申请日：2011-08-05

    申请人： Hyun-wook KIM ,  Han-gil MOON ,  Sang-hoon LEE

    发明人： Hyun-wook KIM ,  Han-gil MOON ,  Sang-hoon LEE

    IPC分类号： G10L19/00

    CPC分类号： G10L19/0204

    摘要： A method and apparatus for generating synthesis audio signals are provided. The method includes decoding a bitstream; splitting the decoded bitstream into n sub-band signals; generating n transformed sub-band signals by transforming the n sub-band signals in a frequency domain; and generating synthesis audio signals by respectively multiplying the n transformed sub-band signals by values corresponding to synthesis filter bank coefficients.

    摘要翻译： 提供了一种用于产生合成音频信号的方法和装置。 该方法包括对比特流进行解码; 将解码的比特流分解成n个子带信号; 通过在频域中变换n个子带信号来产生n个变换的子带信号; 以及通过分别将n个经变换的子带信号乘以与合成滤波器组系数相对应的值来产生合成音频信号。

    Method and apparatus to provide active audio matrix decoding based on the positions of speakers and a listener
    7.
    发明授权
    Method and apparatus to provide active audio matrix decoding based on the positions of speakers and a listener 有权
    基于扬声器和收听者的位置提供主动音频矩阵解码的方法和装置

    公开(公告)号：US08111830B2

    公开(公告)日：2012-02-07

    申请号：US11641080

    申请日：2006-12-19

    申请人： Han-gil Moon ,  Manish Arora

    发明人： Han-gil Moon ,  Manish Arora

    IPC分类号： H04R5/00

    CPC分类号： H04S5/005

    摘要： An active audio matrix decoding method and apparatus to generate multi-channel audio signals from a stereo channel audio signal. The method includes extracting characteristics of a plurality of speaker signals and angles of each of a plurality of multi-channel speakers from arbitrary signals reproduced by the multi-channel speakers, decoding a stereo signal into a plurality of multi-channel signals and correcting the decoded multi-channel signals based on the extracted characteristics of each of the plurality of speaker signals, extracting a power vector of each of the decoded multi-channel signals by multiplying a magnitude of each of the decoded multi-channel signals by an angle of each multi-channel speaker and extracting a vector of a virtual sound source existing between a plurality of channels based on the power vector of each of the decoded multi-channel signals, extracting a vector value of a dominant sound image by linearly combining the extracted vectors of the virtual sound sources and normalizing a position of each multi-channel speaker with respect to the vector value of the dominant sound image to obtain a normalized position value, and distributing a gain value to the position of each multi-channel speaker by comparing a magnitude of a combined decoded multi-channel signal with the magnitude of each of the decoded multi-channel signals.

    摘要翻译： 一种从立体声声道音频信号产生多声道音频信号的有源音频矩阵解码方法和装置。 该方法包括从由多声道扬声器再现的任意信号中提取多个扬声器信号的特性和多个多声道扬声器中的每一个的角度，将立体声信号解码为多个多声道信号并校正解码的 基于所提取的多个扬声器信号中的每一个的特征的多声道信号，通过将每个解码的多声道信号的幅度乘以每个多声道信号的角度来提取每个解码的多声道信号的功率矢量 基于每个解码的多声道信号的功率矢量提取存在于多个声道之间的虚拟声源的矢量，通过线性地组合所提取的矢量的提取的矢量，提取主声音图像的向量值， 虚拟声源和相对于主要声音图像的矢量值对每个多声道扬声器的位置进行归一化 通过将组合解码的多通道信号的大小与解码的多通道信号中的每一个的大小进行比较，获得归一化位置值，并将增益值分配给每个多声道扬声器的位置。

    Method and apparatus to enhance low frequency component of audio signal by calculating fundamental frequency of audio signal
    8.
    发明授权
    Method and apparatus to enhance low frequency component of audio signal by calculating fundamental frequency of audio signal 有权
    通过计算音频信号的基频来增强音频信号的低频分量的方法和装置

    公开(公告)号：US08098835B2

    公开(公告)日：2012-01-17

    申请号：US11697382

    申请日：2007-04-06

    申请人： Han-gil Moon ,  Manish Arora

    发明人： Han-gil Moon ,  Manish Arora

    IPC分类号： H03G3/00 ,  H03G5/00

    CPC分类号： H04S1/002

    摘要： A method and apparatus to enhance a low frequency component of an audio signal, by computing a fundamental frequency of an input audio signal using the input audio signal and a delayed audio signal obtained by delaying the input audio signal by a predetermined amount of time, generating harmonic signals from the input audio signal based on the fundamental frequency, and combining the harmonic signals and the input audio signal. The low frequency component of the audio signal can be enhanced using human characteristics of perception without physically boosting the energy of the low frequency component.

    摘要翻译： 一种通过使用输入音频信号计算输入音频信号的基频和通过将输入音频信号延迟预定时间量而获得的延迟音频信号来增强音频信号的低频分量的方法和装置，产生 基于基频输入音频信号的谐波信号，并组合谐波信号和输入音频信号。 音频信号的低频分量可以使用感知的人类特性来增强，而无需物理地提升低频分量的能量。