公开(公告)号：US20110051939A1

公开(公告)日：2011-03-03

申请号：US12868077

申请日：2010-08-25

申请人： Han-gil MOON ,  Jong-hoon JEONG

发明人： Han-gil MOON ,  Jong-hoon JEONG

IPC分类号： H04R5/00

CPC分类号： H04S3/008 ,  H04S2400/03 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/07

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.

公开(公告)号：US20110040566A1

公开(公告)日：2011-02-17

申请号：US12831353

申请日：2010-07-07

申请人： Han-gil MOON ,  Nam-suk LEE

发明人： Han-gil MOON ,  Nam-suk LEE

IPC分类号： G10L19/00

CPC分类号： G10L19/008 ,  G10L19/0204

摘要： 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.

摘要翻译： 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：US20090048826A1

公开(公告)日：2009-02-19

申请号：US12131446

申请日：2008-06-02

申请人： Nam-suk LEE ,  Geon-hyoung LEE ,  Chul-woo LEE ,  Han-gil MOON

发明人： Nam-suk LEE ,  Geon-hyoung LEE ,  Chul-woo LEE ,  Han-gil MOON

IPC分类号： G10L19/00

CPC分类号： G10L19/093

摘要： 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).

摘要翻译： 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。

公开(公告)号：US20120033816A1

公开(公告)日：2012-02-09

申请号：US13204120

申请日：2011-08-05

申请人： Nam-suk LEE ,  Han-gil MOON

发明人： Nam-suk LEE ,  Han-gil MOON

IPC分类号： G06F17/00 ,  H04R5/00

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

摘要： Provided is a signal processing method for processing a bitstream, an information storage medium including the bitstream, an encoding apparatus, and a decoding apparatus. The signal processing method includes: receiving a bitstream including additional information; extracting first information which is information associated with extraction of the additional information and is included in at least one of additional bitstream information, a skip field, and auxiliary data bits, which are included in the bitstream; and extracting and decoding the additional information by using the first information.

摘要翻译： 提供了一种用于处理比特流的信号处理方法，包括比特流的信息存储介质，编码装置和解码装置。 信号处理方法包括：接收包括附加信息的比特流; 提取与提取附加信息相关联的信息的第一信息，并且被包括在比特流中包括的附加比特流信息，跳过字段和辅助数据比特中的至少一个中; 以及通过使用第一信息来提取和解码附加信息。

公开(公告)号：US20110051938A1

公开(公告)日：2011-03-03

申请号：US12862819

申请日：2010-08-25

申请人： Han-gil MOON ,  Nam-suk LEE

发明人： Han-gil MOON ,  Nam-suk LEE

IPC分类号： H04R5/00

CPC分类号： G10L19/008 ,  H04S2420/03

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.

摘要翻译： 一种对立体声音频进行编码的方法，其使得对立体声音频的参数编码和参数解码所需的多条边信息最小化。 侧面信息可以包括将单声道音频恢复到立体声音频所需的关于通道间强度差（IID），通道间相关性（IC），总体相位差（OPD）和通道间相位差（IPD））的参数。

公开(公告)号：US20110047379A1

公开(公告)日：2011-02-24

申请号：US12858677

申请日：2010-08-18

申请人： Han-gil MOON ,  Kyung-sun CHO ,  Hyun-wook KIM

发明人： Han-gil MOON ,  Kyung-sun CHO ,  Hyun-wook KIM

IPC分类号： H04L9/18 ,  H04H20/88 ,  H04L9/32

CPC分类号： H04H20/89 ,  H04H20/33 ,  H04H60/23 ,  H04H2201/11 ,  H04L9/065 ,  H04L2209/601

摘要： Provided are a method and apparatus for transmitting digital multimedia broadcasting data, and a method and apparatus for receiving digital multimedia broadcasting data. A basic audio signal and a multichannel audio signal are encoded to generate a basic audio stream and a multichannel audio stream, and a first data stream describing property and position data of the basic audio stream and a second data stream describing property and position data of the multichannel audio stream are transmitted as independent streams. According to the performance of the receiving apparatus, an audio signal may be decoded by using just the first data stream only or both the first data stream and the second stream.

摘要翻译： 提供一种用于发送数字多媒体广播数据的方法和装置，以及用于接收数字多媒体广播数据的方法和装置。 编码基本音频信号和多声道音频信号以生成基本音频流和多声道音频流，以及描述基本音频流的属性和位置数据的第一数据流以及描述基本音频流的属性和位置数据的第二数据流 多声道音频流作为独立流传输。 根据接收装置的性能，可以仅使用第一数据流或第一数据流和第二流二者来解码音频信号。

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。

公开(公告)号：US20110046759A1

公开(公告)日：2011-02-24

申请号：US12697647

申请日：2010-02-01

申请人： Hyun-wook KIM ,  Han-gil MOON

发明人： Hyun-wook KIM ,  Han-gil MOON

IPC分类号： G06F17/00

CPC分类号： G10L21/0272 ,  G10L19/008 ,  G10L19/0204

摘要： Provided is a method of separating an audio object that includes extracting virtual source location information and an audio signal from a bitstream, separating an object included in the audio signal based on a virtual source location, mapping objects of a previous frame and objects of a current frame located at the virtual source location, and extracting the mapped objects between continuous frames.

摘要翻译： 提供了一种分离包括从比特流提取虚拟源位置信息和音频信号的音频对象的方法，基于虚拟源位置分离包括在音频信号中的对象，映射前一帧的对象和当前对象 帧，并且在连续帧之间提取映射的对象。

公开(公告)号：US20130022205A1

公开(公告)日：2013-01-24

申请号：US13588563

申请日：2012-08-17

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。

公开(公告)号：US20090089049A1

公开(公告)日：2009-04-02

申请号：US12237413

申请日：2008-09-25

申请人： Han-gil MOON ,  Geon-hyoung LEE

发明人： Han-gil MOON ,  Geon-hyoung LEE

IPC分类号： G10L19/00

CPC分类号： G10L19/035

摘要： Provided are a method of adaptively determining a quantization step according to a masking effect in a psychoacoustics model and a method of encoding/decoding an audio signal by using the determined quantization step. The method of adaptively determining a quantization step includes calculating a first ratio value indicating an intensity of an input audio signal with respect to a masking threshold; and determining the maximum value of the quantization step in a range in which noise generated when the audio signal is quantized is masked, according to the first ratio value. According to the present invention, quantization noise may be removed and the number of bits required to encode an audio signal may be reduced, by using auditory characteristics of humans.

摘要翻译： 提供了一种根据心理声学模型中的掩蔽效应自适应地确定量化步长的方法，以及通过使用所确定的量化步长对音频信号进行编码/解码的方法。 自适应地确定量化步骤的方法包括：计算指示输入音频信号相对于屏蔽阈值的强度的第一比值; 以及根据所述第一比值确定在音频信号被量化时产生的噪声被屏蔽的范围内的所述量化步长的最大值。 根据本发明，可以通过使用人的听觉特征来消除量化噪声并且可以减少编码音频信号所需的比特数。