diff --git a/assignment-client/src/Agent.cpp b/assignment-client/src/Agent.cpp
index 133a72859e..d9cf479b17 100644
--- a/assignment-client/src/Agent.cpp
+++ b/assignment-client/src/Agent.cpp
@@ -8,8 +8,6 @@
 
 #include <curl/curl.h>
 
-#include <QtScript/QScriptEngine>
-
 #include <AvatarData.h>
 #include <NodeList.h>
 #include <UUID.h>
@@ -22,9 +20,9 @@ Agent::Agent(const unsigned char* dataBuffer, int numBytes) :
     Assignment(dataBuffer, numBytes),
     _shouldStop(false)
 {
-    
 }
 
+
 void Agent::stop() {
     _shouldStop = true;
 }
@@ -41,10 +39,27 @@ static size_t writeScriptDataToString(void *contents, size_t size, size_t nmemb,
     return realSize;
 }
 
+QScriptValue vec3toScriptValue(QScriptEngine *engine, const glm::vec3 &vec3) {
+    QScriptValue obj = engine->newObject();
+    obj.setProperty("x", vec3.x);
+    obj.setProperty("y", vec3.y);
+    obj.setProperty("z", vec3.z);
+    return obj;
+}
+
+void vec3FromScriptValue(const QScriptValue &object, glm::vec3 &vec3) {
+    vec3.x = object.property("x").toVariant().toFloat();
+    vec3.y = object.property("y").toVariant().toFloat();
+    vec3.z = object.property("z").toVariant().toFloat();
+}
+
 void Agent::run() {
     NodeList* nodeList = NodeList::getInstance();
     nodeList->setOwnerType(NODE_TYPE_AGENT);
-    nodeList->setNodeTypesOfInterest(&NODE_TYPE_VOXEL_SERVER, 1);
+    
+    const char AGENT_NODE_TYPES_OF_INTEREST[2] = { NODE_TYPE_VOXEL_SERVER, NODE_TYPE_AUDIO_MIXER };
+    
+    nodeList->setNodeTypesOfInterest(AGENT_NODE_TYPES_OF_INTEREST, sizeof(AGENT_NODE_TYPES_OF_INTEREST));
 
     nodeList->getNodeSocket()->setBlocking(false);
     
@@ -84,6 +99,9 @@ void Agent::run() {
         
         QScriptEngine engine;
         
+        // register meta-type for glm::vec3 conversions
+        qScriptRegisterMetaType(&engine, vec3toScriptValue, vec3FromScriptValue);
+        
         QScriptValue agentValue = engine.newQObject(this);
         engine.globalObject().setProperty("Agent", agentValue);
         
@@ -93,14 +111,14 @@ void Agent::run() {
         
         QScriptValue treeScaleValue = engine.newVariant(QVariant(TREE_SCALE));
         engine.globalObject().setProperty("TREE_SCALE", treeScaleValue);
-        
-        const long long VISUAL_DATA_SEND_INTERVAL_USECS = (1 / 60.0f) * 1000 * 1000;
 
         // let the VoxelPacketSender know how frequently we plan to call it
-        voxelScripter.getVoxelPacketSender()->setProcessCallIntervalHint(VISUAL_DATA_SEND_INTERVAL_USECS);
+        voxelScripter.getVoxelPacketSender()->setProcessCallIntervalHint(INJECT_INTERVAL_USECS);
         
-        QScriptValue visualSendIntervalValue = engine.newVariant((QVariant(VISUAL_DATA_SEND_INTERVAL_USECS / 1000)));
-        engine.globalObject().setProperty("VISUAL_DATA_SEND_INTERVAL_MS", visualSendIntervalValue);
+        // hook in a constructor for audio injectorss
+        AudioInjector scriptedAudioInjector(BUFFER_LENGTH_SAMPLES_PER_CHANNEL);
+        QScriptValue audioInjectorValue = engine.newQObject(&scriptedAudioInjector);
+        engine.globalObject().setProperty("AudioInjector", audioInjectorValue);
         
         qDebug() << "Downloaded script:" << scriptContents << "\n";
         QScriptValue result = engine.evaluate(scriptContents);
@@ -111,19 +129,20 @@ void Agent::run() {
             qDebug() << "Uncaught exception at line" << line << ":" << result.toString() << "\n";
         }
         
-        timeval thisSend;
+        timeval startTime;
+        gettimeofday(&startTime, NULL);
+        
         timeval lastDomainServerCheckIn = {};
-        int numMicrosecondsSleep = 0;
         
         sockaddr_in senderAddress;
         unsigned char receivedData[MAX_PACKET_SIZE];
         ssize_t receivedBytes;
         
-        bool hasVoxelServer = false;
+        int thisFrame = 0;
+        
+        bool firstDomainCheckIn = false;
         
         while (!_shouldStop) {
-            // update the thisSend timeval to the current time
-            gettimeofday(&thisSend, NULL);
             
             // if we're not hearing from the domain-server we should stop running
             if (NodeList::getInstance()->getNumNoReplyDomainCheckIns() == MAX_SILENT_DOMAIN_SERVER_CHECK_INS) {
@@ -136,38 +155,44 @@ void Agent::run() {
                 NodeList::getInstance()->sendDomainServerCheckIn();
             }
             
-            if (!hasVoxelServer) {
-                for (NodeList::iterator node = nodeList->begin(); node != nodeList->end(); node++) {
-                    if (node->getType() == NODE_TYPE_VOXEL_SERVER) {
-                        hasVoxelServer = true;
+            if (firstDomainCheckIn) {
+                // find the audio-mixer in the NodeList so we can inject audio at it
+                Node* audioMixer = NodeList::getInstance()->soloNodeOfType(NODE_TYPE_AUDIO_MIXER);
+                
+                emit willSendAudioDataCallback();
+                
+                if (audioMixer) {
+                    int usecToSleep = usecTimestamp(&startTime) + (thisFrame++ * INJECT_INTERVAL_USECS) - usecTimestampNow();
+                    if (usecToSleep > 0) {
+                        usleep(usecToSleep);
                     }
+                    
+                    scriptedAudioInjector.injectAudio(NodeList::getInstance()->getNodeSocket(), audioMixer->getPublicSocket());
                 }
-            }
-            
-            if (hasVoxelServer) {
+                
                 // allow the scripter's call back to setup visual data
                 emit willSendVisualDataCallback();
                 
-                if (engine.hasUncaughtException()) {
-                    int line = engine.uncaughtExceptionLineNumber();
-                    qDebug() << "Uncaught exception at line" << line << ":" << engine.uncaughtException().toString() << "\n";
-                }
-                
                 // release the queue of edit voxel messages.
                 voxelScripter.getVoxelPacketSender()->releaseQueuedMessages();
-
+                
                 // since we're in non-threaded mode, call process so that the packets are sent
                 voxelScripter.getVoxelPacketSender()->process();
+
             }
             
+            if (engine.hasUncaughtException()) {
+                int line = engine.uncaughtExceptionLineNumber();
+                qDebug() << "Uncaught exception at line" << line << ":" << engine.uncaughtException().toString() << "\n";
+            }
+
             while (NodeList::getInstance()->getNodeSocket()->receive((sockaddr*) &senderAddress, receivedData, &receivedBytes)) {
+                if (!firstDomainCheckIn && receivedData[0] == PACKET_TYPE_DOMAIN) {
+                    firstDomainCheckIn = true;
+                }
+                
                 NodeList::getInstance()->processNodeData((sockaddr*) &senderAddress, receivedData, receivedBytes);
             }
-            
-            // sleep for the correct amount of time to have data send be consistently timed
-            if ((numMicrosecondsSleep = VISUAL_DATA_SEND_INTERVAL_USECS - (usecTimestampNow() - usecTimestamp(&thisSend))) > 0) {
-                usleep(numMicrosecondsSleep);
-            }
         }
         
     } else {
diff --git a/assignment-client/src/Agent.h b/assignment-client/src/Agent.h
index 0490238d3f..ba70fd58ec 100644
--- a/assignment-client/src/Agent.h
+++ b/assignment-client/src/Agent.h
@@ -9,9 +9,13 @@
 #ifndef __hifi__Agent__
 #define __hifi__Agent__
 
+#include <vector>
+
+#include <QtScript/QScriptEngine>
 #include <QtCore/QObject>
 #include <QtCore/QUrl>
 
+#include <AudioInjector.h>
 #include <Assignment.h>
 
 class Agent : public Assignment {
@@ -23,9 +27,13 @@ public:
 public slots:
     void stop();
 signals:
+    void willSendAudioDataCallback();
     void willSendVisualDataCallback();
 private:
+    static QScriptValue AudioInjectorConstructor(QScriptContext *context, QScriptEngine *engine);
+    
     bool volatile _shouldStop;
+    std::vector<AudioInjector*> _audioInjectors;
 };
 
 #endif /* defined(__hifi__Operative__) */
diff --git a/assignment-client/src/main.cpp b/assignment-client/src/main.cpp
index 9d50469c6d..03578c4e8a 100644
--- a/assignment-client/src/main.cpp
+++ b/assignment-client/src/main.cpp
@@ -66,12 +66,13 @@ void childClient() {
     // create a request assignment, accept assignments defined by the overidden type
     Assignment requestAssignment(Assignment::RequestCommand, ::overiddenAssignmentType);
     
-    // if we're here we have no assignment, so send a request
     qDebug() << "Waiting for assignment -" << requestAssignment << "\n";
     
     while (true) {
         if (usecTimestampNow() - usecTimestamp(&lastRequest) >= ASSIGNMENT_REQUEST_INTERVAL_USECS) {
             gettimeofday(&lastRequest, NULL);
+            
+            // if we're here we have no assignment, so send a request
             nodeList->sendAssignment(requestAssignment);
         }
         
diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index bdd1f8379f..9afb269f1b 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -105,6 +105,8 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
         _profile(QString()),
         _mouseX(0),
         _mouseY(0),
+        _lastMouseMove(usecTimestampNow()),
+        _mouseHidden(false),
         _touchAvgX(0.0f),
         _touchAvgY(0.0f),
         _isTouchPressed(false),
@@ -154,6 +156,7 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
     NodeList::getInstance()->addHook(&_voxels);
     NodeList::getInstance()->addHook(this);
     NodeList::getInstance()->addDomainListener(this);
+    NodeList::getInstance()->addDomainListener(&_voxels);
 
     
     // network receive thread and voxel parsing thread are both controlled by the --nonblocking command line
@@ -908,6 +911,9 @@ void Application::keyPressEvent(QKeyEvent* event) {
             case Qt::Key_8:
                 _swatch.handleEvent(event->key(), Menu::getInstance()->isOptionChecked(MenuOption::VoxelGetColorMode));
                 break;
+            case Qt::Key_At:
+                Menu::getInstance()->goToUser();
+                break;
             default:
                 event->ignore();
                 break;
@@ -978,6 +984,12 @@ void Application::keyReleaseEvent(QKeyEvent* event) {
 }
 
 void Application::mouseMoveEvent(QMouseEvent* event) {
+    _lastMouseMove = usecTimestampNow();
+    if (_mouseHidden) {
+        getGLWidget()->setCursor(Qt::ArrowCursor);
+        _mouseHidden = false;
+    }
+
     if (activeWindow() == _window) {
         _mouseX = event->x();
         _mouseY = event->y();
@@ -2119,6 +2131,15 @@ void Application::update(float deltaTime) {
     _audio.setLastVelocity(_myAvatar.getVelocity());
     _audio.eventuallyAnalyzePing();
     #endif
+    
+    // watch mouse position, if it hasn't moved, hide the cursor
+    uint64_t now = usecTimestampNow();
+    int elapsed = now - _lastMouseMove;
+    const int HIDE_CURSOR_TIMEOUT = 1 * 1000 * 1000; // 1 second
+    if (elapsed > HIDE_CURSOR_TIMEOUT) {
+        getGLWidget()->setCursor(Qt::BlankCursor);
+        _mouseHidden = true;
+    }
 }
 
 void Application::updateAvatar(float deltaTime) {
@@ -3563,9 +3584,6 @@ void Application::domainChanged(QString domain) {
     // update the user's last domain in their Profile (which will propagate to data-server)
     _profile.updateDomain(domain);
     
-    // kill the local voxels
-    _voxels.killLocalVoxels();
-    
     // reset the environment so that we don't erroneously end up with multiple
     _environment.resetToDefault();
 }
diff --git a/interface/src/Application.h b/interface/src/Application.h
index c030b61a74..cb3a3ca73d 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -305,6 +305,8 @@ private:
     int _mouseY;
     int _mouseDragStartedX;
     int _mouseDragStartedY;
+    uint64_t _lastMouseMove;
+    bool _mouseHidden;
 
     float _touchAvgX;
     float _touchAvgY;
diff --git a/interface/src/Menu.cpp b/interface/src/Menu.cpp
index 3dda04d8df..f9479865c6 100644
--- a/interface/src/Menu.cpp
+++ b/interface/src/Menu.cpp
@@ -101,7 +101,7 @@ Menu::Menu() :
                                    SLOT(goToLocation()));
     addActionToQMenuAndActionHash(fileMenu,
                                   MenuOption::GoToUser,
-                                  Qt::CTRL | Qt::SHIFT | Qt::Key_U,
+                                  Qt::Key_At,
                                   this,
                                   SLOT(goToUser()));
 
diff --git a/interface/src/Menu.h b/interface/src/Menu.h
index 688d0d3c34..81d213c026 100644
--- a/interface/src/Menu.h
+++ b/interface/src/Menu.h
@@ -66,6 +66,7 @@ public slots:
     void saveSettings(QSettings* settings = NULL);
     void importSettings();
     void exportSettings();
+    void goToUser();
     
 private slots:
     void aboutApp();
@@ -73,7 +74,6 @@ private slots:
     void editPreferences();
     void goToDomain();
     void goToLocation();
-    void goToUser();
     void bandwidthDetailsClosed();
     void voxelStatsDetailsClosed();
     void cycleFrustumRenderMode();
diff --git a/interface/src/VoxelSystem.cpp b/interface/src/VoxelSystem.cpp
index 9ea37be662..574615d113 100644
--- a/interface/src/VoxelSystem.cpp
+++ b/interface/src/VoxelSystem.cpp
@@ -109,8 +109,14 @@ VoxelSystem::VoxelSystem(float treeScale, int maxVoxels)
 }
 
 void VoxelSystem::voxelDeleted(VoxelNode* node) {
-    if (node->isKnownBufferIndex() && (node->getVoxelSystem() == this)) {
-        forceRemoveNodeFromArrays(node);
+    if (node->getVoxelSystem() == this) {
+        if (_voxelsInWriteArrays != 0) {
+            forceRemoveNodeFromArrays(node);
+        } else {
+            if (Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings)) {
+                printf("VoxelSystem::voxelDeleted() while _voxelsInWriteArrays==0, is that expected? \n");
+            }
+        }
     }
 }
 
@@ -223,10 +229,15 @@ void VoxelSystem::freeBufferIndex(glBufferIndex index) {
 // This will run through the list of _freeIndexes and reset their VBO array values to be "invisible".
 void VoxelSystem::clearFreeBufferIndexes() {
     PerformanceWarning warn(Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings), "###### clearFreeBufferIndexes()");
+    _voxelsInWriteArrays = 0; // reset our VBO
+    _abandonedVBOSlots = 0;
+
+    // clear out freeIndexes
     pthread_mutex_lock(&_freeIndexLock);
     _freeIndexes.clear();
-    _abandonedVBOSlots = 0;
     pthread_mutex_unlock(&_freeIndexLock);
+
+    clearAllNodesBufferIndex();
 }
 
 VoxelSystem::~VoxelSystem() {
@@ -438,7 +449,6 @@ void VoxelSystem::initVoxelMemory() {
 
         // Global Normals mode uses a technique of not including normals on any voxel vertices, and instead
         // rendering the voxel faces in 6 passes that use a global call to glNormal3f()
-        qDebug("Using Global Normals...\n");
         setupFaceIndices(_vboIndicesTop,    identityIndicesTop);
         setupFaceIndices(_vboIndicesBottom, identityIndicesBottom);
         setupFaceIndices(_vboIndicesLeft,   identityIndicesLeft);
@@ -596,11 +606,7 @@ int VoxelSystem::parseData(unsigned char* sourceBuffer, int numBytes) {
 
             while (totalLength <= numBytes) {
                 if (0==strcmp(command,(char*)"erase all")) {
-                    qDebug("got Z message == erase all\n");
-                    pthread_mutex_lock(&_treeLock);
-                    _tree->eraseAllVoxels();
-                    pthread_mutex_unlock(&_treeLock);
-                    _voxelsInReadArrays = _voxelsInWriteArrays = 0; // better way to do this??
+                    qDebug("got Z message == erase all - NOT SUPPORTED ON INTERFACE\n");
                 }
                 if (0==strcmp(command,(char*)"add scene")) {
                     qDebug("got Z message == add scene - NOT SUPPORTED ON INTERFACE\n");
@@ -652,8 +658,6 @@ void VoxelSystem::setupNewVoxelsForDrawing() {
         PerformanceWarning warn(Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings), buffer);
         _callsToTreesToArrays++;
         if (_writeRenderFullVBO) {
-            printf("resetting _freeIndexes and _voxelsInWriteArrays\n");
-            _voxelsInWriteArrays = 0; // reset our VBO
             clearFreeBufferIndexes();
         }
         _voxelsUpdated = newTreeToArrays(_tree->rootNode);
@@ -972,10 +976,10 @@ int VoxelSystem::updateNodeInArrays(VoxelNode* node, bool reuseIndex, bool force
             updateArraysDetails(nodeIndex, startVertex, voxelScale, node->getColor());
             return 1; // updated!
         } else {
-            // If we shouldn't render, but we did have a known index, then we will need to release our index
-            if (reuseIndex && node->isKnownBufferIndex()) {
-                forceRemoveNodeFromArrays(node);
-                return 1; // updated!
+            // If we shouldn't render, and we're in reuseIndex mode, then free our index, this only operates
+            // on nodes with known index values, so it's safe to call for any node.
+            if (reuseIndex) {
+                return forceRemoveNodeFromArrays(node);
             }
         }
     }
@@ -1284,8 +1288,11 @@ void VoxelSystem::removeScaleAndReleaseProgram(bool texture) {
 int VoxelSystem::_nodeCount = 0;
 
 void VoxelSystem::killLocalVoxels() {
+    pthread_mutex_lock(&_treeLock);
     _tree->eraseAllVoxels();
-    _voxelsInWriteArrays = _voxelsInReadArrays = 0; // better way to do this??
+    pthread_mutex_unlock(&_treeLock);
+    clearFreeBufferIndexes();    
+    _voxelsInReadArrays = 0; // do we need to do this?
     setupNewVoxelsForDrawing();
 }
 
@@ -1298,8 +1305,12 @@ bool VoxelSystem::clearAllNodesBufferIndexOperation(VoxelNode* node, void* extra
 
 void VoxelSystem::clearAllNodesBufferIndex() {
     _nodeCount = 0;
+    pthread_mutex_lock(&_treeLock);                                  
     _tree->recurseTreeWithOperation(clearAllNodesBufferIndexOperation);
-    qDebug("clearing buffer index of %d nodes\n", _nodeCount);
+    pthread_mutex_unlock(&_treeLock);
+    if (Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings)) {
+        qDebug("clearing buffer index of %d nodes\n", _nodeCount);
+    }
 }
 
 bool VoxelSystem::forceRedrawEntireTreeOperation(VoxelNode* node, void* extraData) {
@@ -1700,8 +1711,7 @@ bool VoxelSystem::hideAllSubTreeOperation(VoxelNode* node, void* extraData) {
     if (node->isKnownBufferIndex()) {
         args->nodesRemoved++;
         VoxelSystem* thisVoxelSystem = args->thisVoxelSystem;
-        thisVoxelSystem->forceRemoveNodeFromArrays(node);
-        thisVoxelSystem->_voxelsUpdated++;
+        thisVoxelSystem->_voxelsUpdated += thisVoxelSystem->forceRemoveNodeFromArrays(node);
         thisVoxelSystem->setupNewVoxelsForDrawingSingleNode();
     }
     
@@ -1714,10 +1724,10 @@ bool VoxelSystem::showAllSubTreeOperation(VoxelNode* node, void* extraData) {
     args->nodesInside++;
 
     if (node->getShouldRender() && !node->isKnownBufferIndex()) {
-        node->setDirtyBit(); // will this make it draw?
+        node->setDirtyBit(); // will this make it draw!
     }
 
-    return true;
+    return true; // keep recursing!
 }
 
 
@@ -1841,7 +1851,7 @@ void VoxelSystem::falseColorizeRandomEveryOther() {
 
 class collectStatsForTreesAndVBOsArgs {
 public:
-    collectStatsForTreesAndVBOsArgs() : 
+    collectStatsForTreesAndVBOsArgs(int maxVoxels) : 
         totalNodes(0), 
         dirtyNodes(0), 
         shouldRenderNodes(0),
@@ -1852,8 +1862,13 @@ public:
         duplicateVBOIndex(0),
         leafNodes(0)
         {
-            memset(hasIndexFound, false, DEFAULT_MAX_VOXELS_PER_SYSTEM * sizeof(bool));
+            hasIndexFound = new bool[maxVoxels];
+            memset(hasIndexFound, false, maxVoxels * sizeof(bool));
         };
+        
+    ~collectStatsForTreesAndVBOsArgs() {
+        delete[] hasIndexFound;
+    }
 
     unsigned long totalNodes;
     unsigned long dirtyNodes;
@@ -1867,7 +1882,7 @@ public:
 
     unsigned long expectedMax;
     
-    bool hasIndexFound[DEFAULT_MAX_VOXELS_PER_SYSTEM];
+    bool* hasIndexFound;
 };
 
 bool VoxelSystem::collectStatsForTreesAndVBOsOperation(VoxelNode* node, void* extraData) {
@@ -1934,7 +1949,7 @@ void VoxelSystem::collectStatsForTreesAndVBOs() {
         }
     }
 
-    collectStatsForTreesAndVBOsArgs args;
+    collectStatsForTreesAndVBOsArgs args(_maxVoxels);
     args.expectedMax = _voxelsInWriteArrays;
     
     qDebug("CALCULATING Local Voxel Tree Statistics >>>>>>>>>>>>\n");
@@ -1953,7 +1968,7 @@ void VoxelSystem::collectStatsForTreesAndVBOs() {
     glBufferIndex minInVBO = GLBUFFER_INDEX_UNKNOWN;
     glBufferIndex maxInVBO = 0;
 
-    for (glBufferIndex i = 0; i < DEFAULT_MAX_VOXELS_PER_SYSTEM; i++) {
+    for (glBufferIndex i = 0; i < _maxVoxels; i++) {
         if (args.hasIndexFound[i]) {
             minInVBO = std::min(minInVBO,i);
             maxInVBO = std::max(maxInVBO,i);
@@ -1972,13 +1987,12 @@ void VoxelSystem::collectStatsForTreesAndVBOs() {
 
 void VoxelSystem::deleteVoxelAt(float x, float y, float z, float s) {
     pthread_mutex_lock(&_treeLock);
-    
     _tree->deleteVoxelAt(x, y, z, s);
+    pthread_mutex_unlock(&_treeLock);
     
     // redraw!
     setupNewVoxelsForDrawing();  // do we even need to do this? Or will the next network receive kick in?
     
-    pthread_mutex_unlock(&_treeLock);
 };
 
 VoxelNode* VoxelSystem::getVoxelAt(float x, float y, float z, float s) const { 
@@ -2313,17 +2327,22 @@ void VoxelSystem::nodeKilled(Node* node) {
         
         if (_voxelServerCount > 0) {
             // Kill any voxels from the local tree that match this nodeID
+            pthread_mutex_lock(&_treeLock);
             _tree->recurseTreeWithOperation(killSourceVoxelsOperation, &nodeID);
+            pthread_mutex_unlock(&_treeLock);
             _tree->setDirtyBit();
+            setupNewVoxelsForDrawing();
         } else {
             // Last server, take the easy way and kill all the local voxels!
-            _tree->eraseAllVoxels();
-            _voxelsInWriteArrays = _voxelsInReadArrays = 0; // better way to do this??
+            killLocalVoxels();
         }
-        setupNewVoxelsForDrawing();
     }
 }
 
+void VoxelSystem::domainChanged(QString domain) {
+    killLocalVoxels();
+}
+
 
 unsigned long VoxelSystem::getFreeMemoryGPU() {
     // We can't ask all GPUs how much memory they have in use, but we can ask them about how much is free.
diff --git a/interface/src/VoxelSystem.h b/interface/src/VoxelSystem.h
index 5f026e043c..1af6b19ca7 100644
--- a/interface/src/VoxelSystem.h
+++ b/interface/src/VoxelSystem.h
@@ -37,7 +37,8 @@ struct VoxelShaderVBOData
 };
 
 
-class VoxelSystem : public NodeData, public VoxelNodeDeleteHook, public VoxelNodeUpdateHook, public NodeListHook {
+class VoxelSystem : public NodeData, public VoxelNodeDeleteHook, public VoxelNodeUpdateHook, 
+                    public NodeListHook, public DomainChangeListener {
     Q_OBJECT
 public:
     VoxelSystem(float treeScale = TREE_SCALE, int maxVoxels = DEFAULT_MAX_VOXELS_PER_SYSTEM);
@@ -112,6 +113,7 @@ public:
     virtual void voxelUpdated(VoxelNode* node);
     virtual void nodeAdded(Node* node);
     virtual void nodeKilled(Node* node);
+    virtual void domainChanged(QString domain);
     
 signals:
     void importSize(float x, float y, float z);
diff --git a/interface/src/avatar/MyAvatar.cpp b/interface/src/avatar/MyAvatar.cpp
index ee4f0c4811..181c320b69 100644
--- a/interface/src/avatar/MyAvatar.cpp
+++ b/interface/src/avatar/MyAvatar.cpp
@@ -221,12 +221,14 @@ void MyAvatar::simulate(float deltaTime, Transmitter* transmitter) {
     // Damp avatar velocity
     const float LINEAR_DAMPING_STRENGTH = 0.5f;
     const float SPEED_BRAKE_POWER = _scale * 10.0f;
-    const float SQUARED_DAMPING_STRENGTH = 0.007f;
+    const float SQUARED_DAMPING_STRENGTH = 0.007f; 
     
+    const float SLOW_NEAR_RADIUS = 5.f;
     float linearDamping = LINEAR_DAMPING_STRENGTH;
-    const float AVATAR_DAMPING_FACTOR = 120.f;
-    if (_distanceToNearestAvatar < _scale * PERIPERSONAL_RADIUS) {
-        linearDamping *= 1.f + AVATAR_DAMPING_FACTOR * (PERIPERSONAL_RADIUS - _distanceToNearestAvatar);
+    const float NEAR_AVATAR_DAMPING_FACTOR = 50.f;
+    if (_distanceToNearestAvatar < _scale * SLOW_NEAR_RADIUS) {
+        linearDamping *= 1.f + NEAR_AVATAR_DAMPING_FACTOR *
+                            ((SLOW_NEAR_RADIUS - _distanceToNearestAvatar) / SLOW_NEAR_RADIUS);
     }
     if (_speedBrakes) {
         applyDamping(deltaTime, _velocity,  linearDamping * SPEED_BRAKE_POWER, SQUARED_DAMPING_STRENGTH * SPEED_BRAKE_POWER);
diff --git a/libraries/audio/src/AudioInjector.cpp b/libraries/audio/src/AudioInjector.cpp
index b9a6d8a0ba..acdee03e8f 100644
--- a/libraries/audio/src/AudioInjector.cpp
+++ b/libraries/audio/src/AudioInjector.cpp
@@ -21,8 +21,7 @@ AudioInjector::AudioInjector(const char* filename) :
     _radius(0.0f),
     _volume(MAX_INJECTOR_VOLUME),
     _indexOfNextSlot(0),
-    _isInjectingAudio(false),
-    _lastFrameIntensity(0.0f)
+    _isInjectingAudio(false)
 {
     loadRandomIdentifier(_streamIdentifier, STREAM_IDENTIFIER_NUM_BYTES);
     
@@ -52,8 +51,7 @@ AudioInjector::AudioInjector(int maxNumSamples) :
     _radius(0.0f),
     _volume(MAX_INJECTOR_VOLUME),
     _indexOfNextSlot(0),
-    _isInjectingAudio(false),
-    _lastFrameIntensity(0.0f)
+    _isInjectingAudio(false)
 {
     loadRandomIdentifier(_streamIdentifier, STREAM_IDENTIFIER_NUM_BYTES);
     
@@ -103,6 +101,11 @@ void AudioInjector::injectAudio(UDPSocket* injectorSocket, sockaddr* destination
         int nextFrame = 0;
         
         for (int i = 0; i < _numTotalSamples; i += BUFFER_LENGTH_SAMPLES_PER_CHANNEL) {
+            int usecToSleep = usecTimestamp(&startTime) + (nextFrame++ * INJECT_INTERVAL_USECS) - usecTimestampNow();
+            if (usecToSleep > 0) {
+                usleep(usecToSleep);
+            }
+            
             int numSamplesToCopy = BUFFER_LENGTH_SAMPLES_PER_CHANNEL;
             
             if (_numTotalSamples - i < BUFFER_LENGTH_SAMPLES_PER_CHANNEL) {
@@ -115,23 +118,6 @@ void AudioInjector::injectAudio(UDPSocket* injectorSocket, sockaddr* destination
             memcpy(currentPacketPtr, _audioSampleArray + i, numSamplesToCopy * sizeof(int16_t));
             
             injectorSocket->send(destinationSocket, dataPacket, sizeof(dataPacket));
-            
-            // calculate the intensity for this frame
-            float lastRMS = 0;
-            
-            for (int j = 0; j < BUFFER_LENGTH_SAMPLES_PER_CHANNEL; j++) {
-                lastRMS +=  _audioSampleArray[i + j] * _audioSampleArray[i + j];
-            }
-            
-            lastRMS /= BUFFER_LENGTH_SAMPLES_PER_CHANNEL;
-            lastRMS = sqrtf(lastRMS);
-            
-            _lastFrameIntensity = lastRMS / std::numeric_limits<int16_t>::max();
-            
-            int usecToSleep = usecTimestamp(&startTime) + (++nextFrame * INJECT_INTERVAL_USECS) - usecTimestampNow();
-            if (usecToSleep > 0) {
-                usleep(usecToSleep);
-            }
         }
         
         _isInjectingAudio = false;
@@ -152,3 +138,15 @@ void AudioInjector::addSamples(int16_t* sampleBuffer, int numSamples) {
         _indexOfNextSlot += numSamples;
     }
 }
+
+int16_t& AudioInjector::sampleAt(const int index) {
+    assert(index >= 0 && index < _numTotalSamples);
+    
+    return _audioSampleArray[index];
+}
+
+void AudioInjector::insertSample(const int index, int sample) {
+    assert (index >= 0 && index < _numTotalSamples);
+    
+    _audioSampleArray[index] = (int16_t) sample;
+}
diff --git a/libraries/audio/src/AudioInjector.h b/libraries/audio/src/AudioInjector.h
index b102d58e19..626cdc3149 100644
--- a/libraries/audio/src/AudioInjector.h
+++ b/libraries/audio/src/AudioInjector.h
@@ -12,6 +12,9 @@
 #include <glm/gtc/quaternion.hpp>
 #include <glm/gtx/component_wise.hpp>
 
+#include <QtCore/QObject>
+
+#include <RegisteredMetaTypes.h>
 #include <UDPSocket.h>
 
 #include "AudioRingBuffer.h"
@@ -22,7 +25,11 @@ const int MAX_INJECTOR_VOLUME = 0xFF;
 
 const int INJECT_INTERVAL_USECS = floorf((BUFFER_LENGTH_SAMPLES_PER_CHANNEL / SAMPLE_RATE) * 1000000);
 
-class AudioInjector {
+class AudioInjector : public QObject {
+    Q_OBJECT
+    
+    Q_PROPERTY(glm::vec3 position READ getPosition WRITE setPosition)
+    Q_PROPERTY(uchar volume READ getVolume WRITE setVolume);
 public:
     AudioInjector(const char* filename);
     AudioInjector(int maxNumSamples);
@@ -35,8 +42,6 @@ public:
     unsigned char getVolume() const  { return _volume; }
     void setVolume(unsigned char volume) { _volume = volume; }
     
-    float getLastFrameIntensity() const { return _lastFrameIntensity; }
-    
     const glm::vec3& getPosition() const { return _position; }
     void setPosition(const glm::vec3& position) { _position = position; }
     
@@ -48,6 +53,9 @@ public:
     
     void addSample(const int16_t sample);
     void addSamples(int16_t* sampleBuffer, int numSamples);
+public slots:
+    int16_t& sampleAt(const int index);
+    void insertSample(const int index, int sample);
 private:
     unsigned char _streamIdentifier[STREAM_IDENTIFIER_NUM_BYTES];
     int16_t* _audioSampleArray;
@@ -58,7 +66,6 @@ private:
     unsigned char _volume;
     int _indexOfNextSlot;
     bool _isInjectingAudio;
-    float _lastFrameIntensity;
 };
 
 #endif /* defined(__hifi__AudioInjector__) */
diff --git a/libraries/avatars/src/AvatarData.cpp b/libraries/avatars/src/AvatarData.cpp
index f0085a4138..46aad2d86f 100644
--- a/libraries/avatars/src/AvatarData.cpp
+++ b/libraries/avatars/src/AvatarData.cpp
@@ -53,38 +53,6 @@ AvatarData::~AvatarData() {
     delete _handData;
 }
 
-void AvatarData::setPositionFromVariantMap(QVariantMap positionMap) {
-    _position = glm::vec3(positionMap.value("x").toFloat(), 
-                          positionMap.value("y").toFloat(),
-                          positionMap.value("z").toFloat());
-}
-
-QVariantMap AvatarData::getPositionVariantMap() {
-    QVariantMap positionMap;
-    
-    positionMap.insert("x", _position.x);
-    positionMap.insert("y", _position.y);
-    positionMap.insert("z", _position.z);
-    
-    return positionMap;
-}
-
-void AvatarData::setHandPositionFromVariantMap(QVariantMap handPositionMap) {
-    _handPosition = glm::vec3(handPositionMap.value("x").toFloat(),
-                              handPositionMap.value("y").toFloat(),
-                              handPositionMap.value("z").toFloat());
-}
-
-QVariantMap AvatarData::getHandPositionVariantMap() {
-    QVariantMap positionMap;
-    
-    positionMap.insert("x", _handPosition.x);
-    positionMap.insert("y", _handPosition.y);
-    positionMap.insert("z", _handPosition.z);
-    
-    return positionMap;
-}
-
 void AvatarData::sendData() {
     
     // called from Agent visual loop to send data
diff --git a/libraries/avatars/src/AvatarData.h b/libraries/avatars/src/AvatarData.h
index 57327f3bba..f3ccab1504 100755
--- a/libraries/avatars/src/AvatarData.h
+++ b/libraries/avatars/src/AvatarData.h
@@ -20,6 +20,8 @@
 #include <QtCore/QUuid>
 #include <QtCore/QVariantMap>
 
+#include <RegisteredMetaTypes.h>
+
 #include <NodeData.h>
 #include "HeadData.h"
 #include "HandData.h"
@@ -49,8 +51,8 @@ class JointData;
 class AvatarData : public NodeData {
     Q_OBJECT
     
-    Q_PROPERTY(QVariantMap position READ getPositionVariantMap WRITE setPositionFromVariantMap)
-    Q_PROPERTY(QVariantMap handPosition READ getHandPositionVariantMap WRITE setHandPositionFromVariantMap)
+    Q_PROPERTY(glm::vec3 position READ getPosition WRITE setPosition)
+    Q_PROPERTY(glm::vec3 handPosition READ getHandPosition WRITE setHandPosition)
     Q_PROPERTY(float bodyYaw READ getBodyYaw WRITE setBodyYaw)
     Q_PROPERTY(float bodyPitch READ getBodyPitch WRITE setBodyPitch)
     Q_PROPERTY(float bodyRoll READ getBodyRoll WRITE setBodyRoll)
@@ -60,16 +62,11 @@ public:
     ~AvatarData();
     
     const glm::vec3& getPosition() const { return _position; }
-    
     void setPosition(const glm::vec3 position) { _position = position; }
+    
+    const glm::vec3& getHandPosition() const { return _handPosition; }
     void setHandPosition(const glm::vec3 handPosition) { _handPosition = handPosition; }
     
-    void setPositionFromVariantMap(QVariantMap positionMap);
-    QVariantMap getPositionVariantMap();
-    
-    void setHandPositionFromVariantMap(QVariantMap handPositionMap);
-    QVariantMap getHandPositionVariantMap();
-    
     int getBroadcastData(unsigned char* destinationBuffer);
     int parseData(unsigned char* sourceBuffer, int numBytes);
     
diff --git a/libraries/shared/src/NodeList.cpp b/libraries/shared/src/NodeList.cpp
index 11ae372830..12a24c535f 100644
--- a/libraries/shared/src/NodeList.cpp
+++ b/libraries/shared/src/NodeList.cpp
@@ -437,7 +437,6 @@ void NodeList::sendAssignment(Assignment& assignment) {
 }
 
 Node* NodeList::addOrUpdateNode(sockaddr* publicSocket, sockaddr* localSocket, char nodeType, uint16_t nodeId) {
-
     NodeList::iterator node = end();
     
     if (publicSocket) {
@@ -553,7 +552,7 @@ void* removeSilentNodes(void *args) {
             node->lock();
             
             if ((usecTimestampNow() - node->getLastHeardMicrostamp()) > NODE_SILENCE_THRESHOLD_USECS) {
-            
+
                 qDebug() << "Killed " << *node << "\n";
                 
                 nodeList->notifyHooksOfKilledNode(&*node);
diff --git a/libraries/shared/src/RegisteredMetaTypes.h b/libraries/shared/src/RegisteredMetaTypes.h
new file mode 100644
index 0000000000..e15e053ebb
--- /dev/null
+++ b/libraries/shared/src/RegisteredMetaTypes.h
@@ -0,0 +1,16 @@
+//
+//  RegisteredMetaTypes.h
+//  hifi
+//
+//  Created by Stephen Birarda on 10/3/13.
+//  Copyright (c) 2013 HighFidelity, Inc. All rights reserved.
+//
+//  Used to register meta-types with Qt so that they can be used as properties for objects exposed to our
+//  Agent scripting.
+
+#ifndef hifi_RegisteredMetaTypes_h
+#define hifi_RegisteredMetaTypes_h
+
+Q_DECLARE_METATYPE(glm::vec3)
+
+#endif