USC will test its new emergency loudspeakers today and Thursday, university spokesman Russ McKinney said.
The tests involve tones, sirens and voice messages. The loudspeakers are located from Williams-Brice Stadium to the central campus.
The audible alert system consists of five speakers mounted on poles or building roofs around campus.
The tentative test schedule:
Wednesday — Start testing of sirens from 10 a.m. until 5 p.m.
Thursday — Systemwide test at 10:30 a.m. Testing may occur throughout the day until 5 p.m.
After this round of testing, the university tentatively plans to perform monthly tests at noon on the first Monday of each month.
Contributing: Staff writers Ishmael Tate, Bill Robinson, Tim Flach and James T. Hammond