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公开(公告)号：US20200349959A1
公开(公告)日：2020-11-05
申请号：US16843649
申请日：2020-04-08
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
Inventor： Hochong PARK , Seung Kwon BEACK , Jongmo SUNG , Seong-Hyeon SHIN , Mi Suk LEE , Tae Jin LEE , Jin Soo CHOI
IPC: G10L19/032 , G10L25/18 , G10L25/21 , G06N3/08 , G06N20/00
Abstract: An inventive concept relates to an audio coding method to which CNN-based frequency spectrum recovery is applied. An inventive concept transmits a part of frequency spectral coefficients generated in transform coding to a decoder and the decoder recovers the frequency spectral coefficient not transmitted. Furthermore, the signs of frequency spectral coefficient are transmitted from an encoder to the decoder depending on a sign transmission rule.
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公开(公告)号：US20200234718A1
公开(公告)日：2020-07-23
申请号：US16841428
申请日：2020-04-06
Inventor： Yong Ju LEE , Jeong Il SEO , Jae Hyoun YOO , Seung Kwon BEACK , Jong Mo SUNG , Tae Jin LEE , Kyeong Ok KANG , Jin Woong KIM , Tae Jin PARK , Dae Young JANG , Keun Woo CHOI
IPC: G10L19/008 , H04S7/00
Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
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公开(公告)号：US20200211576A1
公开(公告)日：2020-07-02
申请号：US16729112
申请日：2019-12-27
Inventor： Seung Kwon BEACK , Woo-taek LIM , Tae Jin LEE
IPC: G10L19/032 , G10L25/30 , G06N3/08
Abstract: A loss function determining method and a loss function determining system for an audio signal are disclosed. A method of determining a loss function capable of being defined when a neural network is used to reconstruct an audio signal is provided.
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94.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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Patent Agency Ranking
公开(公告)号：US20180301155A1
公开(公告)日：2018-10-18
申请号：US16011249
申请日：2018-06-18
Inventor： Jeong Il SEO , Seung Kwon BEACK , Dae Young JANG , Kyeong Ok KANG , Tae Jin PARK , Yong Ju LEE , Keun Woo CHOI , Jin Woong KIM
IPC: G10L19/008
CPC classification number: G10L19/008 , H04S3/00
Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
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97.发明申请公开(公告)号：US20180130478A1
公开(公告)日：2018-05-10
申请号：US15714273
申请日：2017-09-25
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seung Kwon BEACK , Tae Jin LEE , Min Je KIM , Dae Young JANG , Kyeongok KANG , Jin Woo HONG , Ho Chong PARK , Young-cheol PARK
IPC: G10L19/02
CPC classification number: G10L19/0212
Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a different coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the different coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.
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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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