Xhip synth

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Xhip was originally designed as a basic synthesizer used inside a tracker ("acid tracker") around 1999. Before that it had existed in pieces as small tools for generating samples to be used in more common trackers.
With the addition of a second oscillator, super-saw unison, two filters, a waveshaper, pairs of modulators (envelopes, and LFOs); Features like ringmod, xmod, filter input FM, saturation and global unison Xhip has become far more than its original intention.
Xhip allows you to produce the highest quality dual-oscillator polyphonic synthesizer sounds similar to classic poly synthesizers of the late 80s. Strings, synth pads, basses, leads, organs, pianos, percussions, bells, vocals, sound effects and more are demonstrated in the included bank.

http://xhip.net/synth/