© Primal Audio, 2016. All rights reserved.
Software version: 1.0
Concept & Design: Andreas Steinholtz & Nis Wegmann
Graphics: Andreas Steinholtz
Programming & DSP: Nis Wegmann & Christian Lundgaard
ACID is an analogue-modelled filter based on the transistor filter design used in the iconic 303 synthesizer. ACID uses cutting-edge DSP rooted in techniques used in industrial circuit simulators to accurately model its analogue components.
Bipolar envelope amount. Clockwise adds positive envelope modulation and counterclockwise adds negative envelope modulation.
Attack time of the envelope
Release time of the envelope
Filter cutoff ranging from 20 hz to 20.000 hz
Non self-oscillating resonance.
Cutoff modulation provided by the Cutoff CV input on the rear.
Controls the level going into the filter. Higher levels results in the filter being saturated.
Controls the output level of the filter. When the AUTO switch is on the level is controlled automatically.
Overload lamp indicates when the filter is saturating the signal.
This adds 20dB of gain to the input for extra saturation.
The output level is controlled automatically.
Stereo audio inputs.
Stereo audio outputs.
A 1-pole high-pass filter ranging from 20 hz to 20.000 hz to prevent the envelope follower being triggered by sub frequencies. If nothing it connected to the adjacent SIDECHAIN INPUT the highpass filter is still active working on the signal from the AUDIO IN.
Audio input routed to the detector section of the envelope follower. When nothing it connected to the sidechain input the audio from the AUDIO IN is sent to the detector section of the envelope follower.
Modulates the cutoff frequency.
Modulates the emphasis amount.
Key. Track (keyboard tracking) is used for making the cutoff frequency follow (track) the keys played on your keyboard when a Note CV signal is connected. When the Key. Track amount knob is set to maximum the filter will track the note signal 100%.