This application is a continuation-in-part of U.S. patent application “Gunshot Detection within an Indoor Environment” Ser. No. 15,684,925 (Patent No. US 10, 657, 800 B1), filed Aug. 23, 2017, which claims the benefit of U.S. provisional patent applications “Gunshot Detection within an Indoor Environment” Ser. No. 62/379,023, filed Aug. 24, 2016, and “Testing of Gunshot Sensors” Ser. No. 62/429,754, filed Dec. 3, 2016.