From 08835eac75d0c488e68b3b1424e7fc85285a2397 Mon Sep 17 00:00:00 2001
From: Georg Krause <mail@georg-krause.net>
Date: Mon, 9 Jul 2018 13:57:06 +0200
Subject: [PATCH] apply smoothing to input to key button

---
 src/jack.cxx | 11 +++++++----
 src/jack.hxx |  2 ++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/jack.cxx b/src/jack.cxx
index a56c361..7561e68 100644
--- a/src/jack.cxx
+++ b/src/jack.cxx
@@ -203,6 +203,7 @@ Jack::Jack( std::string name ) :
 	inputToMixEnable  = false;
 	inputToSendEnable = false;
 	inputToKeyEnable  = false;
+	inputToKeyEnableLag = 0;
 	inputToMixVol     = 0.f;
 	inputToMixVolLag  = 0.f;
 	inputToSendVol    = 0.f;
@@ -547,6 +548,8 @@ void Jack::processFrames(int nframes)
 		returnVolLag += SMOOTHING_CONST * (returnVol - returnVolLag);
 		inputVolLag += SMOOTHING_CONST * (inputVol - inputVolLag);
 
+		inputToKeyEnableLag += SMOOTHING_CONST * (inputToKeyEnable - inputToKeyEnableLag);
+
 		float inputL = buffers.audio[Buffers::MASTER_INPUT_L][i] * inputVolLag;
 		float inputR = buffers.audio[Buffers::MASTER_INPUT_R][i] * inputVolLag;
 
@@ -568,10 +571,10 @@ void Jack::processFrames(int nframes)
 				buffers.audio[Buffers::SEND_R][i] += inputR * inputToSendVolLag * inputToMixVolLag;
 			}
 		}
-		if ( inputToKeyEnable ) {
-			buffers.audio[Buffers::SIDECHAIN_KEY_L][i] += inputL;
-			buffers.audio[Buffers::SIDECHAIN_KEY_R][i] += inputR;
-		}
+		
+		buffers.audio[Buffers::SIDECHAIN_KEY_L][i] += inputL * inputToKeyEnableLag;
+		buffers.audio[Buffers::SIDECHAIN_KEY_R][i] += inputR * inputToKeyEnableLag;
+		
 
 		buffers.audio[Buffers::SIDECHAIN_SIGNAL_L][i] += inputL * inputToXSideVolLag;
 		buffers.audio[Buffers::SIDECHAIN_SIGNAL_R][i] += inputR * inputToXSideVolLag;
diff --git a/src/jack.hxx b/src/jack.hxx
index 1763df3..1b1f861 100644
--- a/src/jack.hxx
+++ b/src/jack.hxx
@@ -179,6 +179,8 @@ private:
 	float inputToXSideVolLag;
 
 	bool  inputToKeyEnable;
+	float inputToKeyEnableLag;
+	
 	bool  inputToMixEnable;
 	bool  inputToSendEnable;