diff --git a/audio.cpp b/audio.cpp
index 5e8e57ff88..81ceef826a 100644
--- a/audio.cpp
+++ b/audio.cpp
@@ -145,10 +145,10 @@ bool Audio::init()
     if (err != paNoError) goto error;
     
     err = Pa_OpenDefaultStream(&stream,  
-                               2,       // input channels
-                               2,       // output channels
+                               1,       // input channels
+                               1,       // output channels
                                paFloat32, // sample format
-                               44100,   // sample rate (hz)
+                               22050,   // sample rate (hz)
                                512,     // frames per buffer
                                audioCallback, // callback function
                                (void*)data);  // user data to be passed to callback
diff --git a/interface.xcodeproj/project.xcworkspace/xcuserdata/philip.xcuserdatad/UserInterfaceState.xcuserstate b/interface.xcodeproj/project.xcworkspace/xcuserdata/philip.xcuserdatad/UserInterfaceState.xcuserstate
index 9a297636f2..2afb097581 100644
Binary files a/interface.xcodeproj/project.xcworkspace/xcuserdata/philip.xcuserdatad/UserInterfaceState.xcuserstate and b/interface.xcodeproj/project.xcworkspace/xcuserdata/philip.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/main.cpp b/main.cpp
index 5aa33a44ab..a4af7856cc 100644
--- a/main.cpp
+++ b/main.cpp
@@ -89,7 +89,7 @@ Hand myHand(HAND_RADIUS,
             glm::vec3(0,1,1));      //  My hand (used to manipulate things in world)
 
 glm::vec3 box(WORLD_SIZE,WORLD_SIZE,WORLD_SIZE);
-ParticleSystem balls(500, 
+ParticleSystem balls(10, 
                      box, 
                      false,                     // Wrap?
                      0.0,                       // Noise
@@ -112,7 +112,7 @@ ParticleSystem balls(500,
 #define RENDER_FRAME_MSECS 10
 #define SLEEP 0
 
-#define NUM_TRIS 100  // 20000   //000
+#define NUM_TRIS 50000  // 20000   //000
 struct {
     float vertices[NUM_TRIS * 9];
     float normals [NUM_TRIS * 3];