Little PrimalTap is a free delay and echo VST, Audio Unit, AAX plugin developed by Soundtoys. Compatible OS(s): Windows, macOS.
Inspired by the classic Prime Time digital delay, Little PrimalTap captures the highly distinctive sonic imprint of this quirky, but creative tool. Use the few simple controls with reckless abandon to echo, loop, warp, distort, mangle, or create cacophonous cascades of otherworldly sounds.
It is fully 64-bit and supports VST and AAX on the Mac OS X and Windows, and AudioUnits on the Mac.
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http://www.soundtoys.com/