diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 0d7b416fe0..e669a2a527 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -152,8 +152,8 @@ Application::Application(int& argc, char** argv) :
         _packetCount(0),
         _packetsPerSecond(0),
         _bytesPerSecond(0),
-        _bytesCount(0)  {  
-    
+        _bytesCount(0)
+{
     gettimeofday(&_applicationStartupTime, NULL);
     printLog("Interface Startup:\n");
     
@@ -169,7 +169,9 @@ Application::Application(int& argc, char** argv) :
     if (portStr) {
         listenPort = atoi(portStr);
     }
+    
     AgentList::createInstance(AGENT_TYPE_AVATAR, listenPort);
+    
     _enableNetworkThread = !cmdOptionExists(argc, constArgv, "--nonblocking");
     if (!_enableNetworkThread) {
         AgentList::getInstance()->getAgentSocket()->setBlocking(false);
@@ -934,11 +936,13 @@ void Application::idle() {
         }
         
         //  Update from Mouse
-        QPoint mouse = QCursor::pos();
-        _myAvatar.updateFromMouse(_glWidget->mapFromGlobal(mouse).x(),
-                                  _glWidget->mapFromGlobal(mouse).y(),
-                                  _glWidget->width(),
-                                  _glWidget->height());
+        if (_mouseLook->isChecked()) {
+            QPoint mouse = QCursor::pos();
+            _myAvatar.updateFromMouse(_glWidget->mapFromGlobal(mouse).x(),
+                                      _glWidget->mapFromGlobal(mouse).y(),
+                                      _glWidget->width(),
+                                      _glWidget->height());
+        }
        
         //  Read serial port interface devices
         if (_serialPort.active) {
@@ -1195,6 +1199,8 @@ void Application::initMenu() {
     optionsMenu->addAction("Noise", this, SLOT(setNoise(bool)), Qt::Key_N)->setCheckable(true);
     (_gyroLook = optionsMenu->addAction("Gyro Look"))->setCheckable(true);
     _gyroLook->setChecked(true);
+    (_mouseLook = optionsMenu->addAction("Mouse Look"))->setCheckable(true);
+    _mouseLook->setChecked(false);
     optionsMenu->addAction("Fullscreen", this, SLOT(setFullscreen(bool)), Qt::Key_F)->setCheckable(true);
     
     QMenu* renderMenu = menuBar->addMenu("Render");
diff --git a/interface/src/Application.h b/interface/src/Application.h
index d072eefe24..3e3dbb97b8 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -134,6 +134,7 @@ private:
     
     QAction* _lookingInMirror;       // Are we currently rendering one's own head as if in mirror? 
     QAction* _gyroLook;              // Whether to allow the gyro data from head to move your view
+    QAction* _mouseLook;             // Whether the have the mouse near edge of screen move your view
     QAction* _renderVoxels;          // Whether to render voxels
     QAction* _renderStarsOn;         // Whether to display the stars 
     QAction* _renderAtmosphereOn;    // Whether to display the atmosphere
diff --git a/interface/src/Audio.cpp b/interface/src/Audio.cpp
index 5bca301552..c64701d67e 100644
--- a/interface/src/Audio.cpp
+++ b/interface/src/Audio.cpp
@@ -99,12 +99,21 @@ int audioCallback (const void* inputBuffer,
     parentAudio->_scope->addSamples(2, outputRight, PACKET_LENGTH_SAMPLES_PER_CHANNEL);
     
     // if needed, add input/output data to echo analysis buffers
-    if (parentAudio->_isGatheringEchoFrames) {
-        memcpy(parentAudio->_echoInputSamples, inputLeft,
+    if (parentAudio->_echoInputFrameCountdown > 0) {
+        if (--parentAudio->_echoInputFrameCountdown == 0) {
+            memcpy(parentAudio->_echoInputSamples, inputLeft,
                PACKET_LENGTH_SAMPLES_PER_CHANNEL * sizeof(int16_t));
+            parentAudio->_echoInputFrameCountdown = 0;
+            printLog("got input\n");
+        }
+    }
+
+    if (parentAudio->_isGatheringEchoOutputFrames) {
         memcpy(parentAudio->_echoOutputSamples, outputLeft,
                PACKET_LENGTH_SAMPLES_PER_CHANNEL * sizeof(int16_t));
-        parentAudio->addedPingFrame();
+        parentAudio->_isGatheringEchoOutputFrames = false;
+        parentAudio->_echoInputFrameCountdown = 2;
+        printLog("got output\n");
     }
     
     if (inputLeft != NULL) {
@@ -273,7 +282,10 @@ int audioCallback (const void* inputBuffer,
         for (int s = 0; s < PACKET_LENGTH_SAMPLES_PER_CHANNEL; s++) {
             outputLeft[s] = outputRight[s] = (int16_t)(sinf((float) s / PING_PITCH) * PING_VOLUME);
         }
-        parentAudio->_isGatheringEchoFrames = true;
+        printLog("Send echo ping\n");
+        parentAudio->_isSendingEchoPing = false;
+        parentAudio->_isGatheringEchoOutputFrames = true;
+    
     }
     gettimeofday(&parentAudio->_lastCallbackTime, NULL);
     return paContinue;
@@ -293,6 +305,9 @@ Audio::Audio(Oscilloscope* scope) :
     _scope(scope),
     _averagedLatency(0.0),
     _measuredJitter(0),
+    _jitterBufferLengthMsecs(12.0),
+    _jitterBufferSamples(_jitterBufferLengthMsecs *
+                     NUM_AUDIO_CHANNELS * (SAMPLE_RATE / 1000.0)),
     _wasStarved(0),
     _lastInputLoudness(0),
     _mixerLoopbackFlag(false),
@@ -303,8 +318,8 @@ Audio::Audio(Oscilloscope* scope) :
     _packetsReceivedThisPlayback(0),
     _shouldStartEcho(false),
     _isSendingEchoPing(false),
-    _echoPingFrameCount(0),
-    _isGatheringEchoFrames(false)
+    _echoInputFrameCountdown(0),
+    _isGatheringEchoOutputFrames(false)
 {
     outputPortAudioError(Pa_Initialize());
     outputPortAudioError(Pa_OpenDefaultStream(&_stream,
@@ -376,20 +391,11 @@ void Audio::addProceduralSounds(int16_t* inputBuffer, int numSamples) {
 
 void Audio::startEchoTest() {
     _shouldStartEcho = true;
-    _echoPingFrameCount = 0;
     _isSendingEchoPing = true;
-    _isGatheringEchoFrames = false;
+    _isGatheringEchoOutputFrames = false;
+    
 }
 
-void Audio::addedPingFrame() {
-    const int ECHO_PING_FRAMES = 1;
-    _echoPingFrameCount++;
-    if (_echoPingFrameCount == ECHO_PING_FRAMES) {
-        _isGatheringEchoFrames = false;
-        _isSendingEchoPing = false;
-        //startEchoTest();
-    }
-}
 void Audio::analyzeEcho(int16_t* inputBuffer, int16_t* outputBuffer, int numSamples) {
     //  Compare output and input streams, looking for evidence of correlation needing echo cancellation
     //
diff --git a/interface/src/Audio.h b/interface/src/Audio.h
index 2eae70bb34..34a342a1d4 100644
--- a/interface/src/Audio.h
+++ b/interface/src/Audio.h
@@ -38,7 +38,6 @@ public:
     void addReceivedAudioToBuffer(unsigned char* receivedData, int receivedBytes);
     
     void startEchoTest();
-    void addedPingFrame();
     void renderEchoCompare();
     
 private:    
@@ -49,6 +48,8 @@ private:
     timeval _lastReceiveTime;
     float _averagedLatency;
     float _measuredJitter;
+    float _jitterBufferLengthMsecs;
+    short _jitterBufferSamples;
     int _wasStarved;
     float _lastInputLoudness;
     bool _mixerLoopbackFlag;
@@ -57,12 +58,15 @@ private:
     int _totalPacketsReceived;
     timeval _firstPlaybackTime;
     int _packetsReceivedThisPlayback;
+    // Echo Analysis
     bool _shouldStartEcho;
     bool _isSendingEchoPing;
-    int _echoPingFrameCount;
     int16_t* _echoInputSamples;
     int16_t* _echoOutputSamples;
-    bool _isGatheringEchoFrames;
+    int _echoInputFrameCountdown;
+    bool _isGatheringEchoOutputFrames;
+
+    
     
     // give access to AudioData class from audioCallback
     friend int audioCallback (const void*, void*, unsigned long, const PaStreamCallbackTimeInfo*, PaStreamCallbackFlags, void*);
diff --git a/interface/src/Avatar.cpp b/interface/src/Avatar.cpp
index 9b351a7684..78977e4572 100644
--- a/interface/src/Avatar.cpp
+++ b/interface/src/Avatar.cpp
@@ -188,9 +188,9 @@ bool Avatar::getIsNearInteractingOther() {
 
 void  Avatar::updateFromMouse(int mouseX, int mouseY, int screenWidth, int screenHeight) {
     //  Update yaw based on mouse behavior
-    const float MOUSE_MOVE_RADIUS = 0.25f;
-    const float MOUSE_ROTATE_SPEED = 5.0f;
-    const float MOUSE_PITCH_SPEED = 3.0f;
+    const float MOUSE_MOVE_RADIUS = 0.15f;
+    const float MOUSE_ROTATE_SPEED = 3.0f;
+    const float MOUSE_PITCH_SPEED = 1.5f;
     const float MAX_YAW_TO_ADD = 180.f;
     const int TITLE_BAR_HEIGHT = 46;
     float mouseLocationX = (float)mouseX / (float)screenWidth - 0.5f;
@@ -1377,4 +1377,4 @@ void Avatar::readAvatarDataFromFile() {
         }
         fclose(avatarFile);
     }
-}
\ No newline at end of file
+}
diff --git a/interface/src/Oscilloscope.cpp b/interface/src/Oscilloscope.cpp
index 088ef6ac14..baa173e512 100644
--- a/interface/src/Oscilloscope.cpp
+++ b/interface/src/Oscilloscope.cpp
@@ -32,11 +32,15 @@ namespace { // everything in here only exists while compiling this .cpp file
 }
 
 
-Oscilloscope::Oscilloscope(int w, int h, bool isEnabled) : 
-    _valWidth(w), _valHeight(h), 
-    _arrSamples(0l), _arrVertices(0l), 
-    _valLowpass(0.4f), _valDownsample(3),
-    enabled(isEnabled), inputPaused(false) {
+Oscilloscope::Oscilloscope(int w, int h, bool isEnabled) :
+    enabled(isEnabled),
+    inputPaused(false),
+    _valWidth(w),
+    _valHeight(h),
+    _arrSamples(0l),
+    _arrVertices(0l),
+    _valLowpass(0.4f),
+    _valDownsample(3) {
     
     // allocate enough space for the sample data and to turn it into
     // vertices and since they're all 'short', do so in one shot
diff --git a/libraries/audio/src/AudioInjectionManager.cpp b/libraries/audio/src/AudioInjectionManager.cpp
index ce252afd23..275161730e 100644
--- a/libraries/audio/src/AudioInjectionManager.cpp
+++ b/libraries/audio/src/AudioInjectionManager.cpp
@@ -9,12 +9,16 @@
 #include <sys/time.h>
 
 #include "SharedUtil.h"
+#include "AgentList.h"
+#include "AgentTypes.h"
+#include "Agent.h"
 #include "PacketHeaders.h"
 
 #include "AudioInjectionManager.h"
 
 UDPSocket* AudioInjectionManager::_injectorSocket = NULL;
 sockaddr AudioInjectionManager::_destinationSocket;
+bool AudioInjectionManager::_isDestinationSocketExplicit = false;
 AudioInjector* AudioInjectionManager::_injectors[50] = {};
 
 AudioInjector* AudioInjectionManager::injectorWithSamplesFromFile(const char* filename) {
@@ -39,9 +43,24 @@ AudioInjector* AudioInjectionManager::injectorWithCapacity(int capacity) {
     return NULL;
 }
 
+void AudioInjectionManager::setDestinationSocket(sockaddr& destinationSocket) {
+    _destinationSocket = destinationSocket;
+    _isDestinationSocketExplicit = true;
+}
+
 void* AudioInjectionManager::injectAudioViaThread(void* args) {
     AudioInjector* injector = (AudioInjector*) args;
     
+    // if we don't have an injectorSocket then grab the one from the agent list
+    if (!_injectorSocket) {
+        _injectorSocket = AgentList::getInstance()->getAgentSocket();
+    }
+    
+    // if we don't have an explicit destination socket then pull active socket for current audio mixer from agent list
+    if (!_isDestinationSocketExplicit) {
+        _destinationSocket = *AgentList::getInstance()->soloAgentOfType(AGENT_TYPE_AUDIO_MIXER)->getActiveSocket();
+    }
+    
     injector->injectAudio(_injectorSocket, &_destinationSocket);
     
     // if this an injector inside the injection manager's array we're responsible for deletion
diff --git a/libraries/audio/src/AudioInjectionManager.h b/libraries/audio/src/AudioInjectionManager.h
index 3297305475..8cb9614811 100644
--- a/libraries/audio/src/AudioInjectionManager.h
+++ b/libraries/audio/src/AudioInjectionManager.h
@@ -24,12 +24,13 @@ public:
     static void threadInjector(AudioInjector* injector);
     
     static void setInjectorSocket(UDPSocket* injectorSocket) { _injectorSocket = injectorSocket;}
-    static void setDestinationSocket(sockaddr& destinationSocket) { _destinationSocket = destinationSocket; }
+    static void setDestinationSocket(sockaddr& destinationSocket);
 private:
     static void* injectAudioViaThread(void* args);
     
     static UDPSocket* _injectorSocket;
     static sockaddr _destinationSocket;
+    static bool _isDestinationSocketExplicit;
     static AudioInjector* _injectors[MAX_CONCURRENT_INJECTORS];
 };
 
diff --git a/libraries/avatars/src/AvatarData.cpp b/libraries/avatars/src/AvatarData.cpp
index 43259298fb..658551e726 100644
--- a/libraries/avatars/src/AvatarData.cpp
+++ b/libraries/avatars/src/AvatarData.cpp
@@ -61,7 +61,6 @@ AvatarData::AvatarData() :
 {
 };
 
-
 int AvatarData::getBroadcastData(unsigned char* destinationBuffer) {
     unsigned char* bufferStart = destinationBuffer;
     
diff --git a/libraries/avatars/src/AvatarData.h b/libraries/avatars/src/AvatarData.h
index 57edf3c452..68411fa3ee 100644
--- a/libraries/avatars/src/AvatarData.h
+++ b/libraries/avatars/src/AvatarData.h
@@ -33,8 +33,7 @@ public:
     
     const glm::vec3& getPosition() const { return _position; }
     void setPosition(const glm::vec3 position) { _position = position; }
-    
-    void setHandPosition(const glm::vec3 handPosition) { _handPosition = handPosition; }
+    void setHandPosition(const glm::vec3 handPosition) { _handPosition = handPosition; }    
     
     int getBroadcastData(unsigned char* destinationBuffer);
     int parseData(unsigned char* sourceBuffer, int numBytes);
@@ -42,10 +41,8 @@ public:
     //  Body Rotation
     float getBodyYaw() const { return _bodyYaw; }
     void setBodyYaw(float bodyYaw) { _bodyYaw = bodyYaw; }
-    
     float getBodyPitch() const { return _bodyPitch; }
     void setBodyPitch(float bodyPitch) { _bodyPitch = bodyPitch; }
-    
     float getBodyRoll() const {return _bodyRoll; }
     void setBodyRoll(float bodyRoll) { _bodyRoll = bodyRoll; }
 
@@ -116,7 +113,7 @@ protected:
     // privatize the copy constructor and assignment operator so they cannot be called
     AvatarData(const AvatarData&);
     AvatarData& operator= (const AvatarData&);
-    
+
     glm::vec3 _position;
     glm::vec3 _handPosition;
     
diff --git a/libraries/shared/src/AgentList.cpp b/libraries/shared/src/AgentList.cpp
index c667f733a4..3da956a04a 100644
--- a/libraries/shared/src/AgentList.cpp
+++ b/libraries/shared/src/AgentList.cpp
@@ -10,6 +10,7 @@
 #include <cstring>
 #include <cstdlib>
 #include <cstdio>
+
 #include "AgentList.h"
 #include "AgentTypes.h"
 #include "PacketHeaders.h"