pre-echo
nounUK /pɹiːˈɛkəʊ/
Etymology From pre- + echo.
1
An early sign or indication of something; a foreshadowing.
- From the earliest days Christians had searched the Tanakh in their anxiety to find pre-echoes of their own passionate convictions about the God-Man Jesus Christ.2009, Diarmaid MacCulloch, A History of Christianity, Penguin, published 2010, page 140:
2
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences, Signal processing A digital audio compression artifact where a (typically percussive) sound is heard before it should occur.