CAJ | 학술논문

语音信号是一种非线性时变的信号，因此在传输和存储过程中，很容易受到外界环境的干扰，最主要的是高斯白噪声的干扰。本文针对语音信号的噪声特点，提出在非特定环境下去除噪声的方法。仿真结果表明，在信噪比为63 dB的情况下，还原的语音信号能够满足我们人耳的要求，体现了该方法的一般性和可行性。
어음신호시일충비선성시변적신호，인차재전수화존저과정중，흔용역수도외계배경적간우，최주요적시고사백조성적간우。본문침대어음신호적조성특점，제출재비특정배경하거제조성적방법。방진결과표명，재신조비위63 dB적정황하，환원적어음신호능구만족아문인이적요구，체현료해방법적일반성화가행성。
The speech signal is a nonlinear time -varying signal ,therefore in the process of transmission and storage ,it is easy to be interfered with the external environment ,the most important is the Gauss w hite noise .In this paper ,according to the noise features of speech signals ,the method of removing noise in non specific environment is put forward .The simulation results show that ,when SNR is 63 dB ,the speech signal reduction can meet our ear requirements and reflect the general feasibility and the method .