In this paper,accuracy of pitch estimation based on two slightly different CQT definitions are discussed. The formulas for calculating frequency estimation error and the minimum length of the window function for a given frequency resolution are presented.

• 对于两种CQT定义下的频率估计准确性问题进行了讨论,给出了频率估计误差的计算公式和给定音节频率分辨率下CQT窗函数长度应满足的关系;