Sp3ctr3 is an FFT-based audio-mangling effect plug-in.

Sp3ctr3 includes the following controls:

• Lo cut - hard cut of lo frequencies.
• Hi cut - hard cut of hi frequencies.
• Blur - spectral blur - basically, degradation and noise.
• Hold - keeps spectral peaks - like reverb on acid but not.
• Harmonic - 0>0.5 removes integer harmonics of the detected fundamental 0.5>1 removes everything else.
• Threshold - cuts low amplitude partials.
• Edges - 0>0.5 removes slow-changing partials (long pure notes) 0.5>1 removes fast-changing partials (hard attack).
• Warp - warps the frequency spectrum.
• Band stop - centre of a hard bandstop filter.
• Band width - width of a hard bandstop filter.
• Delay time, level, feedback - control a standard stereo delay.
• Pan - simple L-R balance control.
• Gain - waveshaping gain, soft lofi distortion (not clipping) if signal peaks.