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    AUDIO SYSTEM AND METHOD OF EXTRACTING INDOOR REFLECTION CHARACTERISTICS
    15.
    发明申请
    AUDIO SYSTEM AND METHOD OF EXTRACTING INDOOR REFLECTION CHARACTERISTICS 审中-公开
    音频系统和提取室内反射特性的方法

    公开(公告)号：US20160381486A1

    公开(公告)日：2016-12-29

    申请号：US15144556

    申请日：2016-05-02

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jeong Il SEO ,  Tae Jin PARK ,  Jae Hyoun YOO

    IPC: H04S7/00

    CPC classification number: H04S7/305 ,  H04S7/301 ,  H04S7/40

    Abstract: An audio system and method of extracting indoor reflection characteristics, the method including generating a detection signal based on an input signal and a modulation code, outputting a sound signal generated based on the detection signal through a plurality of speakers, measuring sound signals output through the plurality of speakers, or sound signals reflected by a wall of a space in which the plurality of speakers is installed, and extracting reflection characteristics of the space based on the measured sound signals and the modulation code, is disclosed.

    Abstract translation: 一种提取室内反射特性的音频系统和方法，所述方法包括基于输入信号和调制码生成检测信号，并通过多个扬声器输出基于检测信号生成的声音信号，测量通过 多个扬声器或由安装有多个扬声器的空间的壁反射的声音信号，并且基于测量的声音信号和调制码提取空间的反射特性。

    AUDIO SIGNAL PROCESSING APPARATUS AND METHOD ROBUST AGAINST NOISE
    16.
    发明申请
    AUDIO SIGNAL PROCESSING APPARATUS AND METHOD ROBUST AGAINST NOISE 审中-公开
    音频信号处理装置和方法抗噪声

    公开(公告)号：US20160247502A1

    公开(公告)日：2016-08-25

    申请号：US14817292

    申请日：2015-08-04

    Applicant: Electronics and Telecommunications Research Institute

    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

    CPC classification number: G10L15/20 ,  G10L15/06 ,  G10L15/22 ,  G10L25/03

    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。

    POSITION ESTIMATION SYSTEM USING AN AUDIO-EMBEDDED TIME-SYNCHRONIZATION SIGNAL AND POSITION ESTIMATION METHOD USING THE SYSTEM
    17.
    发明申请
    POSITION ESTIMATION SYSTEM USING AN AUDIO-EMBEDDED TIME-SYNCHRONIZATION SIGNAL AND POSITION ESTIMATION METHOD USING THE SYSTEM 审中-公开
    使用系统的音频嵌入式时间同步信号和位置估计方法的位置估计系统

    公开(公告)号：US20140314250A1

    公开(公告)日：2014-10-23

    申请号：US13961993

    申请日：2013-08-08

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Tae Jin PARK ,  Jeong Il SEO ,  Dae Young JANG ,  Kyeong Ok KANG ,  Jin Woong KIM

    IPC: G01S3/801

    CPC classification number: G01S5/30 ,  G01S5/18

    Abstract: Disclosed is a method of estimating a position by a position estimation system. The method includes generating a time-synchronization signal for position determination using a genetic algorithm, embedding the generated time-synchronization signal in an audio signal, and replaying the audio signal embedded with the time-synchronization signal through a speaker, receiving the audio signal embedded with the time-synchronization signal in a microphone, calculating a time delay value of the time-synchronization signal embedded in the received audio signal, and estimating a position of the microphone based on the calculated time delay value.

    Abstract translation: 公开了一种通过位置估计系统估计位置的方法。 该方法包括使用遗传算法产生用于位置确定的时间同步信号，将生成的时间同步信号嵌入到音频信号中，并通过扬声器重播嵌入了时间同步信号的音频信号，接收嵌入的音频信号 利用麦克风中的时间同步信号，计算嵌入在接收到的音频信号中的时间同步信号的时间延迟值，以及基于所计算的时间延迟值来估计麦克风的位置。

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