A Two-Level Sound Classification Platform for Environmental Monitoring

Table 6

Second-level classification, two-step implementation, and scalar features only-confusion matrix results for second step classification of anthropogenic sounds to subclasses.

	Airplane samples classified to:	Car samples classified to:	Pistol samples classified to:	Correctly classified samples
Airplane	1485	30	30	1485
Car	4	1470	0	1470
Pistol	11	0	1470	1470
Total samples	1500	1500	1500	4425/4500 = 98.33%
Probability of correct classification of anthropogenic sounds during the first step (Table 2, row 3, column 3)				4408/4500 = 97.96%
Total accuracy of two-step classification for anthropogenic Sounds				96.32%