diff --git a/src/Rendering/Binaural/RealTime/Utils/BinauralClusterEngine/VABinauralCluster.cpp b/src/Rendering/Binaural/RealTime/Utils/BinauralClusterEngine/VABinauralCluster.cpp
index 9148ac142d6e69111e8fea1f93c9088f84243eaf..348526ec71ae67918387c1f0f91930bdfd204e10 100644
--- a/src/Rendering/Binaural/RealTime/Utils/BinauralClusterEngine/VABinauralCluster.cpp
+++ b/src/Rendering/Binaural/RealTime/Utils/BinauralClusterEngine/VABinauralCluster.cpp
@@ -3,7 +3,11 @@
 #include <math.h>
 #include "VABinauralCluster.h"
 
+// ITA includes
+#include <ITAConstants.h>
+
 // Utils
+#include "../RelationMetrics/VARelationMetrics.h"
 #include "../BinauralTimeOfArrivalEstimator/VABinauralTOAEstimator.h"
 
 VABinauralCluster::VABinauralCluster()
@@ -88,6 +92,13 @@ VABinauralCluster::getOutput()
 	// reset output Buffer
 	_output->zero();
 
+	// get cluster HRTF TOA
+	VARelationMetrics clusterSourceMetrics;
+	clusterSourceMetrics.calc(_listener->predPos, _listener->predView, _listener->predUp, _clusterSourcePos);
+
+	double toaHRTFChL = _listener->toaEstimator->getTOALeft(clusterSourceMetrics.phi, clusterSourceMetrics.theta);
+	double toaHRTFChR = _listener->toaEstimator->getTOARight(clusterSourceMetrics.phi, clusterSourceMetrics.theta);
+
 	// set VDL Values
 	std::map<int, VABinauralSoundSource*>::const_iterator it;
 	for (it = _sources.begin(); it != _sources.end(); ++it)
@@ -95,18 +106,16 @@ VABinauralCluster::getOutput()
 		VABinauralSoundSource* source = it->second;
 		const ITASampleBuffer* input = source->data->pSignalSourceInputBuf;
 
-		VAVec3 sourceToListenerPos = source->predPos - _listenerPos;
-		sourceToListenerPos.Norm();
+		VARelationMetrics sourceMetrics;
+		sourceMetrics.calc(_listener->predPos, _listener->predView, _listener->predUp, source->predPos);
 
-		double phi = atan2(sourceToListenerPos.y, sourceToListenerPos.x);
-		double theta = acos(sourceToListenerPos.z);
-
-		//TODO: add general distance VDL
-		double toaChL = _listener->toaEstimator->getTOALeft(phi, theta);
-		double toaChR = _listener->toaEstimator->getTOARight(phi, theta);
+		double toaDistance = sourceMetrics.dist / 343; // TODO: Medium Propagation....
+	
+		double toaSourceChL = _listener->toaEstimator->getTOALeft(sourceMetrics.phi, sourceMetrics.theta);
+		double toSourceaChR = _listener->toaEstimator->getTOARight(sourceMetrics.phi, sourceMetrics.theta);
 
-		source->vdlChL->SetDelayTime(toaChL);
-		source->vdlChR->SetDelayTime(toaChR);
+		source->vdlChL->SetDelayTime(toaDistance + toaSourceChL - toaHRTFChL);
+		source->vdlChR->SetDelayTime(toaDistance + toSourceaChR - toaHRTFChR);
 
 		source->vdlChL->Process(input, &(_tmpChL));
 		source->vdlChR->Process(input, &(_tmpChR));
@@ -115,7 +124,7 @@ VABinauralCluster::getOutput()
 		(*_output)[1] += _tmpChR;
 	}
 
-	// convolve 
+	// convolve here!
 
 	return _output;
 }
diff --git a/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/VARelationMetrics.cpp b/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/VARelationMetrics.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8ef63724bf472fd39c7da2d19442a6d0131272bf
--- /dev/null
+++ b/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/VARelationMetrics.cpp
@@ -0,0 +1,24 @@
+#include "VARelationMetrics.h"
+
+
+VARelationMetrics::VARelationMetrics()
+{
+}
+
+
+VARelationMetrics::~VARelationMetrics()
+{
+}
+
+void
+VARelationMetrics::calc(const VAVec3& sourcePos, const VAVec3& sourceView, const VAVec3& sourceUp, const VAVec3& targetPos)
+{
+	VAVec3 relTargetPos = targetPos - sourcePos;
+	VAVec3 sourceViewMinusZ = sourceView * (-1.0f); 
+	VAVec3 sourceRight = sourceViewMinusZ.Cross(sourceUp);
+
+	dist = relTargetPos.Length();
+	relTargetPos = relTargetPos / dist;
+	phi = atan2(relTargetPos.Dot(sourceRight), relTargetPos.Dot(sourceViewMinusZ));
+	theta = asin(relTargetPos.Dot(sourceUp));
+}
diff --git a/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/VARelationMetrics.h b/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/VARelationMetrics.h
new file mode 100644
index 0000000000000000000000000000000000000000..affa01087a176d38380120b2ce0a3d20078e97b8
--- /dev/null
+++ b/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/VARelationMetrics.h
@@ -0,0 +1,21 @@
+#ifndef IW_VACORE_RELATIONMETRICS
+#define IW_VACORE_RELATIONMETRICS
+
+// VA Includes
+#include <VA.h>
+
+class VARelationMetrics
+{
+public:
+	double theta;
+	double phi;
+	double dist;
+
+	VARelationMetrics();
+	~VARelationMetrics();
+
+	void
+	calc(const VAVec3& sourcePos, const VAVec3& sourceView, const VAVec3& sourceUp, const VAVec3& targetPos);
+};
+
+#endif \\ IW_VACORE_RELATIONMETRICS
\ No newline at end of file
diff --git a/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/_SourceFiles.cmake b/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/_SourceFiles.cmake
new file mode 100644
index 0000000000000000000000000000000000000000..0a05292bbbb83893d80ff80d0e885529c3c19860
--- /dev/null
+++ b/src/Rendering/Binaural/RealTime/Utils/RelationMetrics/_SourceFiles.cmake
@@ -0,0 +1,19 @@
+# $Id:$
+
+set( RelativeDir "src/Rendering/Binaural/RealTime/Utils/RelationMetrics" )
+set( RelativeSourceGroup "Source Files\\Rendering\\Binaural\\Realtime\\Utils\\RelationMetrics" )
+
+set( DirFiles
+	VARelationMetrics.cpp
+	VARelationMetrics.h
+	_SourceFiles.cmake
+)
+set( DirFiles_SourceGroup "${RelativeSourceGroup}" )
+
+set( LocalSourceGroupFiles  )
+foreach( File ${DirFiles} )
+	list( APPEND LocalSourceGroupFiles "${RelativeDir}/${File}" )
+	list( APPEND ProjectSources "${RelativeDir}/${File}" )
+endforeach()
+source_group( ${DirFiles_SourceGroup} FILES ${LocalSourceGroupFiles} )
+
diff --git a/src/Rendering/Binaural/RealTime/Utils/_SourceFiles.cmake b/src/Rendering/Binaural/RealTime/Utils/_SourceFiles.cmake
index 68e21508a853366b4347ba453cf5dba7e74ec762..bd6f21ed21e17f5e0303229cc35215e79502bfab 100644
--- a/src/Rendering/Binaural/RealTime/Utils/_SourceFiles.cmake
+++ b/src/Rendering/Binaural/RealTime/Utils/_SourceFiles.cmake
@@ -2,7 +2,7 @@
 
 set( RelativeDir "src/Rendering/Binaural/Realtime/Utils" )
 set( RelativeSourceGroup "Source Files\\Rendering\\Binaural\\Realtime\\Utils" )
-set( SubDirs BinauralListener BinauralClusterEngine BinauralSoundSource BinauralTimeOfArrivalEstimator)
+set( SubDirs BinauralListener BinauralClusterEngine BinauralSoundSource BinauralTimeOfArrivalEstimator RelationMetrics)
 
 set( DirFiles
 	_SourceFiles.cmake
diff --git a/src/Utils/VAUtils.cpp b/src/Utils/VAUtils.cpp
index b95e8b991b3a666c8448731d4a93f3c0fdc4c351..07874645c3026703f8d46ec974daef90339c013f 100644
--- a/src/Utils/VAUtils.cpp
+++ b/src/Utils/VAUtils.cpp
@@ -276,7 +276,6 @@ double GetElevationOnTarget_DEG( const VAVec3& vOriginPos, const VAVec3& vView,
 {
 	VAVec3 vDir = vTargetPos - vOriginPos;
 	vDir.Norm();
-	const VAVec3 vRight = vView.Cross( vUp );
 	const double dElevationAngleDeg = asin( vDir.Dot( vUp ) ) * 180.0f / ITAConstants::PI_D;
 	return dElevationAngleDeg;
 }