diff --git a/source/Applications/OrganPipe/OrganPipe.cpp b/source/Applications/OrganPipe/OrganPipe.cpp
index 229d7bf75324e4edfa307b8a525d85fba479c88c..b23ae7643022fde86ebffdfbe405f8fab4c8ba5a 100644
--- a/source/Applications/OrganPipe/OrganPipe.cpp
+++ b/source/Applications/OrganPipe/OrganPipe.cpp
@@ -452,8 +452,36 @@ void run(string configname)
       nodes.push_back(UbTupleFloat3(float(organPipeGeo->getX1Minimum()+0.0719), float(0.0), float(organPipeGeo->getX3Maximum()+0.05)));
       micCoProcessor->addMicrophone(Vector3D(organPipeGeo->getX1Maximum()+0.05, 0.0, organPipeGeo->getX3Centroid()));
       nodes.push_back(UbTupleFloat3(float(organPipeGeo->getX1Maximum()+0.05), float(0.0), float(organPipeGeo->getX3Centroid())));
+
+      //additional mics for ray traysing
+      Vector3D vec1(g_minX1+0.5*deltaXcoarse, g_minX2+0.5*deltaXcoarse, g_minX3+0.5*deltaXcoarse);
+      micCoProcessor->addMicrophone(vec1);
+      nodes.push_back(UbTupleFloat3(float(vec1[0]), float(vec1[1]), float(vec1[2])));
+
+      Vector3D vec2(g_minX1+0.5*deltaXcoarse, g_maxX2-0.5*deltaXcoarse, g_minX3+0.5*deltaXcoarse);
+      micCoProcessor->addMicrophone(vec2);
+      nodes.push_back(UbTupleFloat3(float(vec2[0]), float(vec2[1]), float(vec2[2])));
+
+      Vector3D vec3(g_minX1+0.5*deltaXcoarse, g_minX2+0.5*deltaXcoarse, g_maxX3-0.5*deltaXcoarse);
+      micCoProcessor->addMicrophone(vec3);
+      nodes.push_back(UbTupleFloat3(float(vec3[0]), float(vec3[1]), float(vec3[2])));
+
+      Vector3D vec4(g_minX1+0.5*deltaXcoarse, g_maxX2-0.5*deltaXcoarse, g_maxX3-0.5*deltaXcoarse);
+      micCoProcessor->addMicrophone(vec4);
+      nodes.push_back(UbTupleFloat3(float(vec4[0]), float(vec4[1]), float(vec4[2])));
+
+      Vector3D vec5(organPipeGeo->getX1Minimum()+0.0719, 0.0, organPipeGeo->getX3Maximum());
+      micCoProcessor->addMicrophone(vec5);
+      nodes.push_back(UbTupleFloat3(float(vec5[0]), float(vec5[1]), float(vec5[2])));
+
+      Vector3D vec6(organPipeGeo->getX1Maximum(), 0.0, organPipeGeo->getX3Centroid());
+      micCoProcessor->addMicrophone(vec6);
+      nodes.push_back(UbTupleFloat3(float(vec6[0]), float(vec6[1]), float(vec6[2])));
+      //////////////////////////////////////////////////////////////////
+      
       if (myid==0) WbWriterVtkXmlBinary::getInstance()->writeNodes(pathOut+"/geo/mic", nodes);
 
+
       SPtr<UbScheduler> stepGhostLayer(new UbScheduler(1));
       SPtr<Calculator> calculator(new BasicCalculator(grid, stepGhostLayer, endTime));
       calculator->addCoProcessor(nupsCoProcessor);
diff --git a/source/Applications/OrganPipe/config.txt b/source/Applications/OrganPipe/config.txt
index e71ffa838f8dfe1992ce5cf99d8b78a0357f69f5..cdf91e3727ad50543964815ab5f3456d4b2b4b15 100644
--- a/source/Applications/OrganPipe/config.txt
+++ b/source/Applications/OrganPipe/config.txt
@@ -1,10 +1,12 @@
 pathOut = e:/temp/OrganPipe
-pathGeo = C:/Users/maini/Desktop/organflute
+pathGeo = d:/Projects/SFB880/OrganPipe/geo
 
 availMem = 2e9
 
 logToFile = false
 
+QN = 67.5
+
 newStart = true
 restartStep = 250000