A Machine Learning Assessment System for Spoken English Based on Linear Predictive Coding

Table 4

Speech recognition accuracy of different frame rates.

Data sets	Frame rate (Hz)
	60	100	150	180	200
1	0.6133	0.7491	0.8479	0.9291	0.9287
2	0.6578	0.7674	0.8667	0.9307	0.9306
3	0.6344	0.7232	0.8227	0.9267	0.9265
4	0.6473	0.7512	0.8461	0.9244	0.9246
5	0.6022	0.7334	0.8635	0.9074	0.9077
6	0.5613	0.7219	0.8218	0.9083	0.9080