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21.发明申请公开(公告)号：US20200154224A1
公开(公告)日：2020-05-14
申请号：US16747372
申请日：2020-01-20
Inventor： Seung Kwon BEACK , Tae Jin LEE , Jong Mo SUNG , Kyeong Ok KANG , Jeong Il SEO , Dae Young JANG , Yong Ju LEE , Jin Woong KIM
IPC: H04S3/00
Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
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公开(公告)号：US20190259399A1
公开(公告)日：2019-08-22
申请号：US16404334
申请日：2019-05-06
Inventor： Seung Kwon BEACK , Tae Jin LEE , Jong Mo SUNG , Kyeong Ok KANG , Keun Woo CHOI
IPC: G10L19/00 , G10L19/008
Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
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公开(公告)号：US20180005635A1
公开(公告)日：2018-01-04
申请号：US15540800
申请日：2015-12-31
Inventor： Seung Kwon BEACK , Jeong Il SEO , Jong Mo SUNG , Tae Jin LEE , Jin Soo CHOI
IPC: G10L19/008 , H04S3/00
CPC classification number: G10L19/008 , G10L19/24 , H04S3/008 , H04S2400/01 , H04S2400/03
Abstract: An encoding method for a multi-channel audio signal, an encoding apparatus for performing the encoding method, and a decoding method for a multi-channel audio signal and a decoding apparatus for performing the decoding method are disclosed. A method and apparatus of bypassing an MPEG Surround (MPS) standard operation and using an arbitrary tree when a number of audio signals of N channels exceeds a channel number defined in an MPS standard, is disclosed.
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公开(公告)号：US20170316786A1
公开(公告)日：2017-11-02
申请号：US15652055
申请日：2017-07-17
Inventor： Seung Kwon BEACK , Tae Jin LEE , Jong Mo SUNG , Kyeong Ok KANG , Keun Woo CHOI
IPC: G10L19/00 , G10L19/008 , G10L19/02 , G10L19/22 , G10L19/002
CPC classification number: G10L19/0017 , G10L19/002 , G10L19/008 , G10L19/0212 , G10L19/22
Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
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公开(公告)号：US20160247502A1
公开(公告)日：2016-08-25
申请号：US14817292
申请日：2015-08-04
Inventor： Tae Jin PARK , Yong Ju LEE , Seung Kwon BEACK , Jong Mo SUNG , Tae Jin LEE , Jin Soo CHOI
IPC: G10L15/20 , G10L15/22 , G10L21/0232
Abstract: Provided is an audio signal processing apparatus and method that may convert a speech and audio signal to a spectrogram image, calculate a local gradient using a mask matrix from the spectrogram image, divide the local gradient into blocks of a preset size, generate a weighted histogram for each block, generate an audio feature vector by connecting weighted histograms of the blocks, generate a feature set by performing a discrete cosine transform (DCT) on a feature set of the audio feature vector, and generate an optimized feature set by eliminating an unnecessary region from the transformed feature set and reducing a size of the transformed feature set.
Abstract translation: 提供了一种音频信号处理装置和方法，其可以将语音和音频信号转换为频谱图，使用来自频谱图的掩码矩阵计算局部梯度，将局部梯度划分成预设大小的块，生成加权直方图 对于每个块，通过连接块的加权直方图来生成音频特征向量，通过在音频特征向量的特征集上执行离散余弦变换（DCT）生成特征集，并通过消除不必要的 区域，并减小变换后的特征集的大小。
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Patent Agency Ranking
26.发明申请公开(公告)号：US20140244244A1
公开(公告)日：2014-08-28
申请号：US14191929
申请日：2014-02-27
Inventor： Jong Mo SUNG , Seung Kwon BEACK , Tae Jin LEE , Kyeong Ok KANG
CPC classification number: G10L19/04 , G10L19/0212 , G10L19/12
Abstract: A frequency spectrum processing apparatus and method using a source filter are disclosed. The frequency spectrum processing apparatus may include a first excitation spectrum generation unit to generate a first excitation spectrum using a tonal excitation spectrum according to an input signal and a gain of the tonal excitation spectrum, a second excitation spectrum generation unit to generate a second excitation spectrum using a non-tonal excitation spectrum according to the input signal and a gain of the non-tonal excitation spectrum, and an output spectrum generation unit to generate an output spectrum using the first excitation spectrum and the second excitation spectrum.
Abstract translation: 公开了一种使用源滤波器的频谱处理装置和方法。 频谱处理装置可以包括第一激励频谱生成单元，用于根据输入信号和音调激励频谱的增益使用音调激励频谱生成第一激励频谱;第二激励频谱生成单元，用于生成第二激励频谱 根据输入信号和非音调激励光谱的增益使用非色调激励光谱;以及输出光谱产生单元，用于使用第一激发光谱和第二激发光谱产生输出光谱。
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27.发明公开公开(公告)号：US20240169997A1
公开(公告)日：2024-05-23
申请号：US18505970
申请日：2023-11-09
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
Inventor： Jong Mo SUNG , Seung Kwon BEACK , Young Cheol Park , Joon BYUN , Seung Min SHIN
IPC: G10L19/005
CPC classification number: G10L19/005
Abstract: An audio signal processing method, which is executed by a processor electronically communicating with a deep neural network within a computing system, may comprise: acquiring, by the processor, an input signal before encoding and an output signal after quantization and decoding; calculating, by the processor, a perceptual global loss for a frame corresponding to the input and the output signals; acquiring, by the processor, a plurality of subframes corresponding to the input and output signals by applying a windowing function to the frame of the input and output signals; calculating, by the processor, perceptual local losses for the plurality of subframes corresponding to the input and output signals; and acquiring, by the processor, multi-time scale perceptual loss based on the perceptual global and local losses.
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28.发明申请公开(公告)号：US20200176002A1
公开(公告)日：2020-06-04
申请号：US16786817
申请日：2020-02-10
Inventor： Seung Kwon BEACK , Tae Jin LEE , Jong Mo SUNG , Jeong Il SEO , Kyeong Ok KANG , Dae Young JANG , Jin Woong KIM
IPC: G10L19/008 , H04S3/00
Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.
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29.发明申请公开(公告)号：US20190215631A1
公开(公告)日：2019-07-11
申请号：US16354890
申请日：2019-03-15
Inventor： Seung Kwon BEACK , Tae Jin LEE , Jong Mo SUNG , Kyeong Ok KANG , Jeong Il SEO , Dae Young JANG , Yong Ju LEE , Jin Woong KIM
IPC: H04S3/00
CPC classification number: H04S3/008 , G10L19/008 , H04S2420/03
Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
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30.发明申请公开(公告)号：US20190200150A1
公开(公告)日：2019-06-27
申请号：US16290469
申请日：2019-03-01
Inventor： Seung Kwon BEACK , Jeong Il SEO , Jong Mo SUNG , Tae Jin LEE , Dae Young JANG , Jin Soo CHOI
IPC: H04S1/00 , H04S3/00 , G10L19/008 , H04S5/00
CPC classification number: H04S1/007 , G10L19/008 , H04S3/008 , H04S3/02 , H04S5/00 , H04S2400/01 , H04S2400/03 , H04S2400/07 , H04S2420/03
Abstract: Provided are an encoding method of a multichannel signal, an encoding apparatus to perform the encoding method, a multichannel signal processing method, and a decoding apparatus to perform the decoding method. The decoding method may include identifying an N/2-channel downmix signal derived from an N-channel input signal; and generating an N-channel output signal from the identified N/2-channel downmix signal using a plurality of one-to-two (OTT) boxes. If a low frequency effect (LFE) channel is absent in the output signal, the number of OTT boxes may be equal to N/2 where N/2 denotes the number of channels of the downmix signal.
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