[Retracted] Model of Markov-Based Piano Note Recognition Algorithm and Piano Teaching Model Construction

Table 2

Comparison of accuracy of different endpoint detection algorithms.

Algorithm	High-frequency component (%)	Spectral difference (%)	Phase information (%)	Amplitude phase information (%)	Average value (%)
A priori	67.77	45.67	76.54	35.66	56.41
Amplitude phase information	87.54	56.76	81.73	65.28	72.83