From 0115b024fbcd134cd3481a09adcc9201c0ea5806 Mon Sep 17 00:00:00 2001
From: Andrew Belt <andrewpbelt@gmail.com>
Date: Fri, 22 Sep 2017 17:17:45 -0400
Subject: [PATCH] Add drive input CV to VCF

---
 src/VCF.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/VCF.cpp b/src/VCF.cpp
index 502399d..323733e 100644
--- a/src/VCF.cpp
+++ b/src/VCF.cpp
@@ -115,8 +115,9 @@ VCF::VCF() {
 
 void VCF::step() {
 	float input = getf(inputs[IN_INPUT]) / 5.0;
-	float drive = powf(100.0, params[DRIVE_PARAM]);
-	input *= drive;
+	float drive = params[DRIVE_PARAM] + getf(inputs[DRIVE_INPUT]) / 10.0;
+	float gain = powf(100.0, drive);
+	input *= gain;
 	// Add -60dB noise to bootstrap self-oscillation
 	input += 1.0e-6 * (2.0*randomf() - 1.0);