pre-echo
Noun
Meaning
pre-echo (plural pre-echoes)
An early sign or indication of something; a foreshadowing.
Examples
Most of the tuned versions of Vorbis attempt to fix the pre-echo problem and to increase the sound quality of lower quality settings (-q-2 through -q4).
When this type of audio is compressed, artifacts such as ringing or pre-echo are usually heard.