Bhagavad Gita Chapter 1.13
tataḥ śańkhāś ca bheryaś ca
paṇavānaka-gomukhāḥ
sahasaivābhyahanyanta
sa śabdas tumulo ‘bhavat
Translation
After that, the conchshells, drums, bugles, trumpets and horns were all suddenly sounded, and the combined sound was tumultuous.