cacophony cacophony /kæˈkɑːfəni/

noun

1. Loud confusing disagreeable sounds  ( cacophony )
   loud confusing disagreeable sounds
   
2. A loud harsh or strident noise  ( cacophony , blare , blaring , clamor [American] , din )
   a loud harsh or strident noise
     The protesters raised a clamor, demanding justice and equality.
   The protesters raised a clamor, demanding justice and equality.