公开(公告)号：US09583120B2

公开(公告)日：2017-02-28

申请号：US14681187

申请日：2015-04-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae-Joong Kim ,  Ju-Yeob Kim

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

CPC classification number: G10L21/034 ,  G10L21/0224 ,  G10L21/0232

Abstract: 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.

Abstract translation: 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。