Wavelengths V2 is an expansion pack for the Caustic app. You must have Caustic version 2 or 3 installed to use this. A custom modular synthesizer and outboard effect pedals were used to create these 34 original Caustic PCMsynth presets. Included are 34 presets, all carefully multi-sampled direct from the hardware. This expansion pack focuses on vowel and vocal-synth sounds.