“Create a smooth, classic, 50’s slapback delay effect on guitars, vocals, and drums with Slappy.
Slapback delay is a timeless effect nearly as old as rock and roll itself!
Our hysteresis algorithm emulates the saturation of an old reel-to-reel tape machine, smoothing out high frequencies.
Slapback delay has never been complicated. We’ve given you a handful of parameters to tweak and sweeten your sound, but left the majority of this time-tested effect as perfectly simple as it ever was.
Unlike many other delay plugins, Slappy won’t drain your computer’s processing power.
Dig It, Daddy-O
While slapback delay algorithms can result in harsh high end frequencies, Slappy employs the same hysteresis saturation used in our Bad Tape and Bad Tape 2 plugins. The end result is a smooth, warm delay that is as musical as it is nostalgic.
So go ahead! Slap it on!”
Source : deniseaudio.com