Dual LPG

A two channel Low Pass Gate with side-chain compression, providing simultaneous voltage control over amplitude and frequency content of a signal. It is in essence, a Voltage Controlled Filter Amplifier (VCFA) that has an extremely organic response to control signals. The Low Pass Gate is a classic West Coast synthesis circuit.

• Damp circuit accepts audio as well as CV - allows for patching side-chain compression.
• STRIKE INput allows use of Gate signal to trigger Low Pass Gate circuit, "plucking" or "striking" the vactrol
• DAMP and STRIKE parameters combine to allow for percussive sounds (sharp Attack w/ Voltage Controlled Decay)
• Normalization of a positive offset to the Channel inputs allows for level-shifting of CV, Envelope Generator and even subtle non-symmetrical clipping of signals
• Summing stage with an AUXiliary IN allows for chaining of multiple units creating larger mixes
• Direct coupled, process audio or control signals
• Utilizes 4 vactrols (photoresistive opto-isolators)

http://www.makenoisemusic.com/modules/optomix