基于Goertzel算法的音阶频率分析

Analysis of Music Pitch Based on Goertzel Algorithm

摘要:

音乐信号音阶频率分析的基本方法是快速傅里叶变换，但其谱线频率与定义的音阶频率在位置上有误差。对此，常数Q变换可以提供更好的性能，但其效率并不令人十分满意。本文基于Goertzel算法，给出一种音阶频率分析的方法。它具有简单有效、且容易编程的特点。

Abstract:

Analysis of music pitch can be performed by Fast Fourier Transform. However, some of its spectral line frequencies are different from the defined frequencies of music notes. Constant Q transform can present better perform -ante for music signals. Unfortun