tataḥ śaṅkhāśca bheryaśca paṇavānakagomukhāḥ
sahasaivābhyahanyanta sa śabdastumulo’bhavat

Then (following Bhishma) , conches and kettle-drums, tabors, drums and cow-horns blared forth quite suddenly and the sound was tremendous.

tataḥ = thereafter; śaṅkhāḥ = conchshells; ca = also; bheryaḥ = large drums; ca = and; paṇavānaka = small drums and kettledrums; gomukhāḥ = horns; sahasā = all of a sudden; eva = certainly; abhyahanyanta = were simultaneously sounded; saḥ = that; śabdaḥ = combined sound; tumulaḥ = tumultuous; abhavat = became.;