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The module has the following funcitonal blocks:
PREAMP
With two audio inputs (6.5mm jack and Mini-jack), amplification of the input signal is controlled by the GAIN pot.
The minimum signal required to generate the maximum envelope is 200mV peak and allows up to 5v input.
BPF
The signal will then pass thru a band pass filter with cut-off frequency and bandwidth control via FREQ and WIDTH pots. This will set the frequency range of our control signal.
After this stage the signal can be accessed at synth level via AUDIO OUT.
ENV.FOLLOWER
After filtering the signal it will feed into the RESPONSE stage which determines the envelope followers response velocity. It features a HIGH, MEDIUM and LOW selector switch to achieve the optimal envelope for different kind of signals. FOLLO OUT will output the extracted envelope and has a level indicator LED. Green: Medium level; Orange: High level; and Red: Max. Level.
ENV.REGENERATOR
REGE OUT is a regenerated envelope that allows independent control of the rise part of the envelope with the ATTACK knob, and the fall part with the DECAY knob.
The Envelope Regenerator also features an LED indicator for the regenerated envelope level. Green: Medium level, Orange: High level, Red: Max. Level.
TRIG.EXTRACTOR
With the THRESHOLD pot we can control the level of a comparator that determines when GATE OUT and TRIGG OUT outputs will be activated.
GATE OUT is active while the envelope is over the threshold we set, while TRIGG OUT is activated just when the threshold is passed.
Indicator LEDS show when the outputs are active.
