This is a fork of the iPlug 2 Framework housing 2 VST instruments which enable the sound of the PlayStation 1 SPU to be replicated for classic video game music production.
One VST is an instrument which allows a PlayStation 1 ADPCM sample (.VAG file) to be played like a standard sample-based instrument, with authentic PS1 style ADSR envelope settings and SPU sample interpolation. The second VST is a reverb module which allows recreating the PS1's reverb effects.
Both instruments use SPU emulation code from the PsyDoom PlayStation Doom port and are mainly intended to allow for music production for that game. However they could also easily be used for other PS1 related projects.
LIMITATION: Both plugins must be used at a 44.1 KHz sample rate, as per the original PS1 hardware. Any other sample rates will result in incorrect results.