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Envelope Follower






The Envelope Follower creates auto-wah type effects.  It works by following the envelope of the audio signal to control a filter or other type of effect.


Effect Variation - The type of envelope follower.  Low pass filter (-24, -18, -12, -6 dB per octave ladder filter), high pass filter, band pass filter, notch filter, comb filter and pan.


Invert Envelope - Inverts the envelope.


Sensitivity - Controls how the envelope follows the signal.  The LED indicates when it's fully opened.


Attack - The time it takes for the envelope follower to start working.


Decay - The time it takes for the envelope follower to stop working.


Depth - The amount the filter or effect is modulated by the envelope.


Filter Frequency - The filter's cutoff frequency.


Filter Resonance - The amount of filter resonance (feedback).  For the notch filter, it controls the bandwidth.


Filter Overload - The amount the filter is overdriven.