Before the pitch detection, the voiced is pretreated by band-pass filter, center clipping and digital filter to reduce the effects of formant and high-frequency noises; 在基音检测前用带通滤波、中心削波和数值滤波等方法进行预处理,去除共振峰和高频噪声的影响;
Center clipping distortion Study on the Forming Principle of the Cutting Burr in Turning 中心削波失真中心削波失真车削加工中切削毛刺生成机理的研究
The Sound Accuracy Detection of Piano Based on Three-level Center Clipping Autocorrelation Analysis 基于三电平中心削波自关分析的钢琴音准测量
By using the center clipping and gain function modification of estimator, the residual noise can be reduced significantly. 利用中心削波并对估值器中的增益函数进行修正,可明显地减弱剩余噪声。