Study on the Sound Quality of Steady and Unsteady Exhaust Noise

Table 5

Comparison of prediction results of three models.

	Model satisfaction prediction value			Actual satisfaction	%
	Steady training-model 1	Accele training-model 2	SQP-WRW training-model 3		model1	model2	model3
Accele signal 9	0.621	0.640	0.664	0.686	9.5	6.7	3.2
Accele signal 10	0.313	0.271	0.301	0.291	7.5	6.9	3.4
Mean error%	8.5	6.8	3.3
Predictive correlation coefficient	0.988	0.991	0.996