This is the 6351st most frequent German word.
dröhnen
To roar, rumble, or boom.
Here, 'dröhnen' is used to describe the loud, resonant noise produced by the speakers.
Die Lautsprecher dröhnten während des Konzerts.
The speakers were booming during the concert.
In this usage, 'dröhnen' depicts the loud noise made by the airplane overhead.
Das Flugzeug dröhnte über unser Haus hinweg.
The plane roared over our house.
This illustrates how 'dröhnen' can describe the echoing loud sound of a voice in a spacious area.