公开(公告)号：US20120300941A1

公开(公告)日：2012-11-29

申请号：US13480812

申请日：2012-05-25

申请人： Hwan SHIM ,  Sun-min KIM ,  Young-tae KIM

发明人： Hwan SHIM ,  Sun-min KIM ,  Young-tae KIM

IPC分类号： H04R5/00

CPC分类号： H04R5/04 ,  G10L15/02 ,  H04R2430/03 ,  H04S1/00

摘要： A method of removing a vocal signal is provided, the method including: extracting a difference signal between an input left signal and an input right signal of a stereo signal; obtaining left panning information of the input left signal from the input left signal, and right panning information of the input right signal from the input right signal; and generating an output left signal by applying the left panning information to the difference signal, and an output right signal by applying the right panning information to the difference signal.

摘要翻译： 提供一种去除声音信号的方法，该方法包括：提取输入左信号和立体声信号的输入右信号之间的差分信号; 从输入的左信号获得输入左信号的左平移信息，以及从输入的右信号获得输入的右信号的右平移信息; 以及通过将左摇摄信息应用于差分信号来产生输出左信号，以及通过将右摇摄信息应用于差分信号来产生输出右信号。

公开(公告)号：US08259970B2

公开(公告)日：2012-09-04

申请号：US12538230

申请日：2009-08-10

申请人： Sun-min Kim

发明人： Sun-min Kim

IPC分类号： H04R5/00 ,  H04R5/02

CPC分类号： H04S3/02

摘要： Provided is an adaptive remastering apparatus and method for a rear channel, which emphasizes only signals of the rear channel while maintaining signals of other channels of a multi-channel audio signal. According to the adaptive remastering apparatus and method for a rear channel, virtual rear left and right channel audio signals are generated by multiplying a predetermined gain by ambient signals extracted from front left and right channel audio signals and are combined with input rear left and right channel audio signals, thereby increasing powers of signals of the rear channel.

摘要翻译： 提供了一种用于后信道的自适应重组装置和方法，其仅强调后信道的信号，同时保持多声道音频信号的其它信道的信号。 根据后方通道的自适应再造装置和方法，通过将预定的增益乘以从前左右声道音频信号中提取的环境信号而产生虚拟的左后和右声道音频信号，并将其与输入的左后和右声道 音频信号，从而增加后信道的信号功率。

公开(公告)号：US08254583B2

公开(公告)日：2012-08-28

申请号：US11758138

申请日：2007-06-05

申请人： Sun-min Kim

发明人： Sun-min Kim

IPC分类号： H04R5/00

CPC分类号： H04S3/00 ,  H04S2400/01 ,  H04S2420/01

摘要： A method and apparatus to reproduce stereo sound, which generates optimal stereo sound designed for individual auditory properties. The method includes generating a one or more virtual surround filters corresponding to each of a plurality of head-related transfer functions (HRTFs) classified according to one or more individual auditory properties, generating stereo sound for the one or more virtual surround filters, and selecting at least one from the one or more virtual surround filters, and reproducing the stereo sound based on a filter value of the selected at least one virtual surround filter.

摘要翻译： 一种再现立体声的方法和装置，其产生为个人听觉特性设计的最佳立体声音。 该方法包括生成与根据一个或多个单独听觉属性分类的多个头部相关传送函数（HRTF）中的每一个对应的一个或多个虚拟环绕滤波器，为一个或多个虚拟环绕滤波器生成立体声，以及选择 来自一个或多个虚拟环绕滤波器的至少一个，并且基于所选择的至少一个虚拟环绕滤波器的滤波器值再现立体声。

公开(公告)号：US08059833B2

公开(公告)日：2011-11-15

申请号：US11213753

申请日：2005-08-30

申请人： You-kyung Koh ,  Sun-min Kim ,  Joon-hyun Lee

发明人： You-kyung Koh ,  Sun-min Kim ,  Joon-hyun Lee

IPC分类号： H03G5/00 ,  H03G3/00

CPC分类号： H04R25/70

摘要： A method of compensating audio frequency response characteristics of a portable sound system can be performed using acoustic characteristics of a user measured in real-time. The method of compensating the audio frequency response characteristics can be used by a portable sound system. The method includes generating an acoustic characteristics curve of a user based on a minimum perception level of a user with respect to audible audio frequency bandwidths, generating an acoustic compensation curve of the user based on the acoustic characteristics curve of the user and a predetermined frequency characteristics target curve, and compensating the audio frequency response characteristics of a sound based on the acoustic compensation curve of the user.

摘要翻译： 可以使用实时测量的用户的声学特性来执行补偿便携式声音系统的音频响应特性的方法。 补偿音频响应特性的方法可以由便携式音响系统使用。 该方法包括基于用户对可听音频带宽的最小感知度级别生成用户的声学特性曲线，基于用户的声学特性曲线生成用户的声学补偿曲线和预定频率特性 目标曲线，并且基于用户的声学补偿曲线补偿声音的音频响应特性。

公开(公告)号：US07860260B2

公开(公告)日：2010-12-28

申请号：US11132298

申请日：2005-05-19

申请人： Sun-min Kim ,  Joon-hyun Lee

发明人： Sun-min Kim ,  Joon-hyun Lee

IPC分类号： H04R5/02 ,  H04R5/00

CPC分类号： H04S7/302 ,  H04S3/00 ,  H04S2400/01

摘要： A method of reproducing a virtual sound and an apparatus to reproduce a 2-channel virtual sound from a 5.1 channel (or 7.1 channel or more) sound using a two-channel speaker system. The method includes: generating a 2-channel virtual sound from a multi-channel sound, sensing a listener position with respect to two speakers, generating a listener position compensation value by calculating output levels and time delays of the two speakers with respect to the sensed listener position, and compensating output values of the generated 2-channel virtual sound based on the listener position compensation value.

摘要翻译： 使用双声道扬声器系统从5.1声道（或7.1声道或更多）声音再现虚拟声音的方法和用于再现2声道虚拟声音的装置。 该方法包括：从多声道声音产生2声道虚拟声音，感测相对于两个扬声器的收听者位置，通过相对于感测到的两个扬声器计算两个扬声器的输出电平和时间延迟来产生收听者位置补偿值 收听者位置，以及基于收听者位置补偿值补偿所生成的2声道虚拟声音的输出值。

公开(公告)号：US20070286427A1

公开(公告)日：2007-12-13

申请号：US11693835

申请日：2007-03-30

申请人： Chi-ho JUNG ,  Sun-min Kim

发明人： Chi-ho JUNG ,  Sun-min Kim

IPC分类号： H04R5/02

CPC分类号： H04S3/002 ,  H04R2203/12 ,  H04S2420/01

摘要： A front surround reproduction system improving the stereo effect of mid and low frequency signals by using a psychoacoustic model, and a method thereof. An audio reproducing system to reproduce multi-channel audio signals by using a plurality of speakers includes a split unit to copy the input multi-channel signals and to split the signals into two groups of multi-channel signals, a virtual sound processing unit to generate a virtual sound signal based on a head related transfer function (HRTF) from the one group of the multi-channel signals split in the split unit, a beam forming processing unit to generate a sound beam signal by adjusting the delays and levels of the multi-channel signals belonging to the other group split in the split unit, and a crossover network unit to adjust the characteristics of the virtual sound signal and the sound beam signal generated in the virtual sound processing unit and the beam forming processing unit, respectively, and to provide the virtual sound signal and the sound beam signal to mid and low frequency speaker arrays and high frequency speaker arrays, respectively.

摘要翻译： 通过使用心理声学模型来提高中低频信号的立体效果的前置环绕重放系统及其方法。 通过使用多个扬声器再现多声道音频信号的音频再现系统包括：分离单元，用于复制输入的多声道信号并将信号分成两组多声道信号;虚拟声音处理单元，用于产生 基于从分离单元中分离的一组多通道信号的头部相关传递函数（HRTF）的虚拟声音信号，波束形成处理单元，用于通过调整多个信号的延迟和电平来生成声束信号 属于分割单元中的另一组的信道信号，以及分别用于调整在虚拟声音处理单元和波束形成处理单元中生成的虚拟声音信号和声音束信号的特性的交叉网络单元，以及 以将虚拟声音信号和声束信号分别提供给中低频扬声器阵列和高频扬声器阵列。

公开(公告)号：US20070213990A1

公开(公告)日：2007-09-13

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： G10L19/00 ,  G10L21/00

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。

公开(公告)号：US20070076892A1

公开(公告)日：2007-04-05

申请号：US11507483

申请日：2006-08-22

申请人： Sun-min Kim

发明人： Sun-min Kim

IPC分类号： H04R5/00 ,  H04R5/02

CPC分类号： H04R5/04 ,  H04S1/002 ,  H04S2420/01

摘要： An apparatus and method for canceling crosstalk between 2-channel speakers and two ears of a listener in a stereo sound generation system. The crosstalk canceling apparatus includes a first signal processing unit to cross-mix first and second channel signals with gain and delay-adjusted first and second channel signals, a second signal processing unit to adjust frequency characteristics of the signals mixed in the first signal processing unit.

摘要翻译： 一种用于消除立体声产生系统中收听者的2声道扬声器和两个耳朵之间的串扰的装置和方法。 串扰消除装置包括第一信号处理单元，用于将第一和第二信道信号与增益和延迟调整的第一和第二信道信号进行交叉混合;第二信号处理单元，用于调整混合在第一信号处理单元中的信号的频率特性 。

公开(公告)号：US20060045295A1

公开(公告)日：2006-03-02

申请号：US11174546

申请日：2005-07-06

申请人： Sun-min Kim

发明人： Sun-min Kim

IPC分类号： H04R5/02

CPC分类号： H04S7/302

摘要： A method and an apparatus to reproduce a localized virtual sound source at a position in a 3-D space using multiple channel speakers. The method includes determining position information about the virtual sound source and N speakers, selecting three speakers surrounding the virtual sound source from among the N speakers by calculating N relative angles between the virtual sound source and the N speakers according to the determined position information of the virtual sound source and the N speakers, calculating gains of the selected three speakers and delay values based on distances between each of the selected three speakers, and determining output power values of the N speakers based on the calculated gains and delay values of the respective three speakers.

摘要翻译： 一种使用多声道扬声器在3-D空间中的位置处再现局部虚拟声源的方法和装置。 该方法包括确定关于虚拟声源和N个扬声器的位置信息，根据所确定的虚拟声源和N个扬声器的位置信息，通过计算虚拟声源和N个扬声器之间的N个相对角度来从N个扬声器中选择围绕虚拟声源的三个扬声器 虚拟声源和N个扬声器，基于所选择的三个扬声器中的每一个之间的距离来计算所选择的三个扬声器的增益和延迟值，并且基于所计算的相应三个扬声器的增益和延迟值来确定N个扬声器的输出功率值 扬声器

公开(公告)号：US20050281408A1

公开(公告)日：2005-12-22

申请号：US11075915

申请日：2005-03-10

申请人： Sun-min Kim ,  Seong-Cheol Jang

发明人： Sun-min Kim ,  Seong-Cheol Jang

IPC分类号： H04S5/00 ,  H04R5/00 ,  H04R5/04 ,  H04S3/00

CPC分类号： H04S3/002 ,  H04R5/04 ,  H04S2420/01

摘要： A method and an apparatus to reproduce a 7.1 channel encoded sound through a 5.1 channel speaker system are provided. The apparatus includes a decoder to separate a 7.1 channel audio bitstream into 8 channel audio signals, a signal corrector to correct characteristics of a left channel audio signal, a right channel audio signal, a center channel audio signal, left and right surround channel audio signals, and a low frequency effect channel audio signal out of the 8 channel audio signals, a back surround filter to form virtual speakers for a left back channel audio signal and a right back channel audio signal at arbitrary locations using head related transfer functions measured at predetermined locations around a listener and to cancel crosstalk between the virtual speakers, and an adder to add the right surround channel audio signal output by the signal corrector to the right back channel audio signal output by the back surround filter and to add the left surround channel audio signal output by the signal corrector to the left back channel audio signal output by the back surround filter.

摘要翻译： 提供了通过5.1声道扬声器系统再现7.1声道编码声音的方法和装置。 该装置包括用于将7.1声道音频比特流分离为8声道音频信号的解码器，用于校正左声道音频信号，右声道音频信号，中央声道音频信号，左右环绕声道音频信号的特征的信号校正器 ，以及8声道音频信号中的低频效果声道音频信号，后环绕滤波器，用于在任意位置处形成用于左后声道音频信号和右后声道音频信号的虚拟扬声器，使用在预定时间测量的头部相关传递函数 位于收听者周围的位置并且消除虚拟扬声器之间的串扰，以及加法器，用于将由信号校正器输出的右环绕声道音频信号添加到由后环绕滤波器输出的右后声道音频信号，并将左环绕声道音频 由信号校正器将信号输出到由后围环滤波器输出的左后声道音频信号。