The Proteus VX is a professional desktop sound module based on the Proteus sound
modules and Emulator samplers. It has got features like Phase Locked Stereo signal path, Up to 192 kHz sample rate, 54 different filter types including multi-pole resonant filters, phasers, flangers, vocal filters and multi-parameter morphing filters, etc. Proteus VX is now available as a freeware... (
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The program works with the following extensions:
exb,
e4b