pitch detector meaning in English

俯仰传感器
音调检测器

Many methods of pitch detection are developed so far , in this thesis the pitch detector using waveform transform is adopted . according to the problem appearing in pitch extraction experiment , a novel algorithm of pitch detection is presented . the pitch points in speech signal exhibit local maximum across several consecutive dyadic scales , and their positions are similar , so the improved approach selects pitch points by vote strategy , not by traditional method
基频提取的方法很多，本文采用了小波变换方法，该方法对部分语音得到了较好的结果，但对大部分语音提取的基频中含有较多错误，经仔细分析和研究，本文对它进行了改进，提出了一种基于小波变换的语音基频检测新算法。