A faint repetition of a loud sound occurring in a recording soon after the original as a result of the accidental transfer of signals in a recording medium.
Origin
1950s. From post- + echo, after pre-echo.
Definition of post-echo in US English:
post-echo
nounˌpəʊstˈɛkəʊ
A faint repetition of a loud sound occurring in a recording soon after the original as a result of the accidental transfer of signals in a recording medium.