Table 3.

Applications of sound surveillance.

Application	References
Home security	[23]
Detection of critical situations in a railway system	[24]
General surveillance in public areas	[16,17,19,20,21,22]
Detection of crimes in elevators	[25]
Detection of human emotions in public spaces	[18,26]
Office surveillance	[29]
Medical and health care facilities
Surveillance of the elderly, the convalescent, or pregnant women	[27]
Automatic fall detection to improve the quality of life for independent older adults	[28]
Industrial plants
Fault diagnosis of an induction motor	[31]
Detection of abnormality or failure of equipment	[32]