The module consists of a number of circuits: first of all there's a pre-amplifier with big and small input jacks and a gain potemtiometer for setting the amplification. The pre-amp is followed by a band pass flter with adjustable center frequency and width for eliminating unwanted signal portions, like bassdrums which, due to their high energy mask other frequencies' level and cut a lot of dynamics from the envelope follower.
The pre-amplified and filtered signal is available at the audio out but is being sent simultneously to the other function blocks:
- Envelope Follower follows the audio signal's amplitude changes- Three selectable velocity responses.
- Envelope Regenerator: generates an Attack-Decay envelope from the audio signal; with adjustable time parameters.
- Trigger Extractor: A comparator that produces a gate and a trigger when the audio signal exceeds a threshold. The gate remains high until the audio level drops below the threshold again.
pre-amp: 3,5mm and 1/4" inputs
bandpass filter: audio out
envelope follower: voltage output "follo"
envelope regenerator: voltage output "rege"
trigger extractor: trigger out, gate out
3U Eurorack module, 11HP wide, 45mm deep
power consumption: 40mA @ +12V and 35mA @ -12V
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