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Table 3 The audio corpus.

From: An Adaptive Framework for Acoustic Monitoring of Potential Hazards

Category Number of sound records Average duration of each record in seconds
Explosion 131 13.77
Gunshot 187 32.94
Scream 270 4.04
Normal speech 1680 3.08
Subway environment 32 44.88
Urban environment 106 83.35
Environment suited for military applications 31 68.69
Total 2437 35.82