"The nadaswaram, nagaswaram, nadhaswaram or nathaswaram (Tamil:\u0BA8\u0BBE\u0BA4\u0BB8\u0BCD\u0BB5\u0BB0\u0BAE\u0BCD), is a double reed wind instrument. It is a traditional classical instrument originated in Tamil Nadu and also used in Andhra Pradesh, Karnataka, and Kerala (India).This instrument is the world's loudest non-brass acoustic instrument."@en . . .