Canto 2 -
Ayodhyā-kāṇḍa
Chapter 81: Vasiṣṭha Summons Bharata
Text 2.81.2

सुवर्णकोणाभिहतः प्राणदद्यामदुन्दुभिः।
दध्मुः शङ्खांश्च शतशो नादांश्चोच्चावचस्वरान्॥

suvarṇa-koṇābhihataḥ prāṇadad yāma-dundubhiḥ
dadhmuḥ śaṅkhāṁś ca śataśo nādāṁś coccāvaca-svarān

suvarṇa-koṇa-abhihataḥ = upon being struck by a golden musical stick; prāṇadat = sounded; yāma-dundubhiḥ = the yāma-dundubhi drum; dadhmuḥ = musicians blew; śaṅkhān = conches; ca = and; śataśaḥ = by the hundreds; nādān ca = produced music; ucca-avaca-svarān = in deep, intermediate and shrill tones.

The yāma-dundubhi drum sounded upon being struck by a golden musical stick. Musicians blew conches by the hundreds and produced music in deep, intermediate and shrill tones.

The yāma-dundubhi drum is used to indicate the end of a yāma.1

1 A yāma is three hours. Thus a day and night has eight yāmas.