公开(公告)号：US09583120B2

公开(公告)日：2017-02-28

申请号：US14681187

申请日：2015-04-08

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Tae-Joong Kim ,  Ju-Yeob Kim

IPC分类号： G10L21/0208 ,  G10L21/0232 ,  G10L21/034 ,  G10L21/0224

CPC分类号： G10L21/034 ,  G10L21/0224 ,  G10L21/0232

摘要： Disclosed herein is a noise cancellation apparatus and method, which select in advance parameters to be used for noise cancellation in a reference voice signal section by generating a reference voice signal in advance before a voice signal is generated, thus improving noise cancellation effects. The noise cancellation apparatus includes a parameter initialization unit for determining an initial value of a parameter to be used for noise cancellation, based on reference signals filtered for respective frequencies, a parameter estimation unit for receiving the initial value of the parameter, and estimating the parameter in response to signals that are input after being filtered for respective frequencies, a gain estimation unit for calculating gains for respective frequencies based on the parameter from the parameter estimation unit, and a gain application unit for cancelling noise by applying the gains to the signals that are input after being filtered for respective frequencies.

摘要翻译： 这里公开了一种噪声消除装置和方法，其通过在生成语音信号之前预先生成参考语音信号，预先选择参考语音信号部分中用于噪声消除的参数，从而改善噪声消除效果。 噪声消除装置包括：参数初始化单元，用于基于针对各个频率滤波的参考信号，确定要用于噪声消除的参数的初始值;参数估计单元，用于接收参数的初始值，以及估计参数 响应于在针对各个频率被滤波后输入的信号，增益估计单元，用于基于来自参数估计单元的参数计算各个频率的增益，以及增益应用单元，用于通过将增益应用于 在对各个频率进行滤波后输入。

公开(公告)号：US09311916B2

公开(公告)日：2016-04-12

申请号：US14667675

申请日：2015-03-24

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Ju-Yeob Kim ,  Bon-Tae Koo ,  Tae-Joong Kim

IPC分类号： G10L21/02 ,  G10L15/18 ,  G10L15/20 ,  G10L15/02 ,  G10L21/0208 ,  G10L25/24

CPC分类号： G10L15/20 ,  G10L15/02 ,  G10L21/0208 ,  G10L25/24

摘要： An apparatus and method for improving voice recognition are disclosed herein. The apparatus includes a standard voice transmission unit, a Mel-frequency cepstrum coefficient (MFCC) generation unit, and an MFCC compensation unit. The standard voice transmission unit generates a standard voice. The MFCC generation unit generates voice feature data (MFCC) based on the utterance of the standard voice before voice recognition. The MFCC compensation unit stores a gain value generated based on the standard voice, and compensates for the distortion of the voice feature data based on the utterance of a user using the gain value during the voice recognition.

摘要翻译： 本文公开了一种用于改善语音识别的装置和方法。 该装置包括标准语音发送单元，梅尔频率倒谱系数（MFCC）生成单元和MFCC补偿单元。 标准语音传输单元产生标准语音。 MFCC生成单元基于语音识别之前的标准语音的发音来生成语音特征数据（MFCC）。 MFCC补偿单元存储基于标准语音生成的增益值，并且基于在语音识别期间使用增益值的用户的话语来补偿语音特征数据的失真。