voiceunder

plural voiceunders · alternative voice-under

1. broadcastingAn audio track spoken or sung in the background.

   The commercials have a "voiceunder" reciting the words of Ralph Waldo Emerson.

   1988, Adweek: Western advertising news - Volume 38, Issues 16-30, page 85

   2 more examples

   But even though English soundtracks are left intact— as sort of exotic voiceunders — the situation is dreary for the average American news junkie.

   1984, Edith Terry, The executive guide to China, →ISBN, page 297

   Underneath, something else is moving. A stream running beneath the ice. A voiceover. Or, I guess, a voiceunder.

   2017, Matthew Goodwin, Frederick Aldama, Latin@ Rising An Anthology of Latin@ Science Fiction and Fantasy, →ISBN