diff --git a/interface/src/avatar/MyAvatar.cpp b/interface/src/avatar/MyAvatar.cpp
index ad39b6663a..b91217da63 100644
--- a/interface/src/avatar/MyAvatar.cpp
+++ b/interface/src/avatar/MyAvatar.cpp
@@ -4947,35 +4947,55 @@ void MyAvatar::setWalkSpeed(float value) {
 }
 
 void MyAvatar::setWalkBackwardSpeed(float value) {
+    bool changed = true;
+    float prevVal;
     switch (_controlSchemeIndex) {
         case LocomotionControlsMode::CONTROLS_DEFAULT:
+            prevVal = _defaultWalkBackwardSpeed.get();
             _defaultWalkBackwardSpeed.set(value);
             break;
         case LocomotionControlsMode::CONTROLS_ANALOG:
+            prevVal = _analogWalkBackwardSpeed.get();
             _analogWalkBackwardSpeed.set(value);
             break;
         case LocomotionControlsMode::CONTROLS_ANALOG_PLUS:
+            prevVal = _analogPlusWalkBackwardSpeed.get();
             _analogPlusWalkBackwardSpeed.set(value);
             break;
         default:
+            changed = false;
             break;
     }
+    
+    if (changed && prevVal != value) {
+        emit walkBackwardSpeedChanged(value);
+    }
 }
 
 void MyAvatar::setSprintSpeed(float value) {
+    bool changed = true;
+    float prevVal;
     switch (_controlSchemeIndex) {
         case LocomotionControlsMode::CONTROLS_DEFAULT:
+            prevVal = _defaultSprintSpeed.get();
             _defaultSprintSpeed.set(value);
             break;
         case LocomotionControlsMode::CONTROLS_ANALOG:
+            prevVal = _analogSprintSpeed.get();
             _analogSprintSpeed.set(value);
             break;
         case LocomotionControlsMode::CONTROLS_ANALOG_PLUS:
+            prevVal = _analogPlusSprintSpeed.get();
             _analogPlusSprintSpeed.set(value);
             break;
         default:
+            changed = false;
             break;
     }
+
+    if (changed && prevVal != value) {
+        emit analogPlusSprintSpeedChanged(value);
+    }
 }
 
 float MyAvatar::getSprintSpeed() const {
@@ -5013,9 +5033,12 @@ float MyAvatar::getAnalogSprintSpeed() const {
 }
 
 void MyAvatar::setAnalogPlusWalkSpeed(float value) {
-    _analogPlusWalkSpeed.set(value);
-    // Sprint speed for Analog Plus should be double walk speed.
-    _analogPlusSprintSpeed.set(value * 2.0f);
+    if (_analogPlusWalkSpeed.get() != value) {
+        _analogPlusWalkSpeed.set(value);
+        emit analogPlusWalkSpeedChanged(value);
+        // Sprint speed for Analog Plus should be double walk speed.
+        _analogPlusSprintSpeed.set(value * 2.0f);
+    }
 }
 
 float MyAvatar::getAnalogPlusWalkSpeed() const {
@@ -5023,7 +5046,10 @@ float MyAvatar::getAnalogPlusWalkSpeed() const {
 }
 
 void MyAvatar::setAnalogPlusSprintSpeed(float value) {
-    _analogPlusSprintSpeed.set(value);
+    if (_analogPlusSprintSpeed.get() != value) {
+        _analogPlusSprintSpeed.set(value);
+        emit analogPlusSprintSpeedChanged(value);
+    }
 }
 
 float MyAvatar::getAnalogPlusSprintSpeed() const {
diff --git a/interface/src/avatar/MyAvatar.h b/interface/src/avatar/MyAvatar.h
index 9fb6c85a78..e87aa87bd1 100644
--- a/interface/src/avatar/MyAvatar.h
+++ b/interface/src/avatar/MyAvatar.h
@@ -370,10 +370,10 @@ class MyAvatar : public Avatar {
     Q_PROPERTY(QUuid SELF_ID READ getSelfID CONSTANT)
 
     Q_PROPERTY(float walkSpeed READ getWalkSpeed WRITE setWalkSpeed);
-    Q_PROPERTY(float analogPlusWalkSpeed READ getAnalogPlusWalkSpeed WRITE setAnalogPlusWalkSpeed);
-    Q_PROPERTY(float analogPlusSprintSpeed READ getAnalogPlusSprintSpeed WRITE setAnalogPlusSprintSpeed);
-    Q_PROPERTY(float walkBackwardSpeed READ getWalkBackwardSpeed WRITE setWalkBackwardSpeed);
-    Q_PROPERTY(float sprintSpeed READ getSprintSpeed WRITE setSprintSpeed);
+    Q_PROPERTY(float analogPlusWalkSpeed READ getAnalogPlusWalkSpeed WRITE setAnalogPlusWalkSpeed NOTIFY analogPlusWalkSpeedChanged);
+    Q_PROPERTY(float analogPlusSprintSpeed READ getAnalogPlusSprintSpeed WRITE setAnalogPlusSprintSpeed NOTIFY analogPlusSprintSpeedChanged);
+    Q_PROPERTY(float walkBackwardSpeed READ getWalkBackwardSpeed WRITE setWalkBackwardSpeed NOTIFY walkBackwardSpeedChanged);
+    Q_PROPERTY(float sprintSpeed READ getSprintSpeed WRITE setSprintSpeed NOTIFY sprintSpeedChanged);
     Q_PROPERTY(bool isInSittingState READ getIsInSittingState WRITE setIsInSittingState);
     Q_PROPERTY(MyAvatar::SitStandModelType userRecenterModel READ getUserRecenterModel WRITE setUserRecenterModel);
     Q_PROPERTY(bool isSitStandStateLocked READ getIsSitStandStateLocked WRITE setIsSitStandStateLocked);
@@ -2161,6 +2161,38 @@ signals:
      */
     void audioListenerModeChanged();
 
+    /**jsdoc
+     * Notifies when the analogPlusWalkSpeed value is changed.
+     * @function MyAvatar.analogPlusWalkSpeedChanged
+     * @param {float} value - the new avatar walk speed
+     * @returns {Signal} 
+     */
+    void analogPlusWalkSpeedChanged(float value);
+
+    /**jsdoc
+     * Notifies when the analogPlusSprintSpeed value is changed.
+     * @function MyAvatar.analogPlusSprintSpeedChanged
+     * @param {float} value - the new avatar sprint speed
+     * @returns {Signal} 
+     */
+    void analogPlusSprintSpeedChanged(float value);
+
+    /**jsdoc
+     * Notifies when the sprintSpeed value is changed.
+     * @function MyAvatar.sprintSpeedChanged
+     * @param {float} value - the new avatar sprint speed
+     * @returns {Signal} 
+     */
+    void sprintSpeedChanged(float value);
+
+    /**jsdoc
+     * Notifies when the walkBackwardSpeed value is changed.
+     * @function MyAvatar.walkBackwardSpeedChanged
+     * @param {float} value - the new avatar walk backward speed
+     * @returns {Signal} 
+     */
+    void walkBackwardSpeedChanged(float value);
+
     /**jsdoc
      * @function MyAvatar.transformChanged
      * @returns {Signal} 
diff --git a/interface/src/scripting/AudioDevices.h b/interface/src/scripting/AudioDevices.h
index 3d12f93113..2ea034d9fe 100644
--- a/interface/src/scripting/AudioDevices.h
+++ b/interface/src/scripting/AudioDevices.h
@@ -80,7 +80,7 @@ public:
 
 class AudioInputDeviceList : public AudioDeviceList {
     Q_OBJECT
-    Q_PROPERTY(bool peakValuesAvailable READ peakValuesAvailable)
+    Q_PROPERTY(bool peakValuesAvailable READ peakValuesAvailable CONSTANT)
     Q_PROPERTY(bool peakValuesEnabled READ peakValuesEnabled WRITE setPeakValuesEnabled NOTIFY peakValuesEnabledChanged)
 
 public:
diff --git a/libraries/shared/src/shared/Camera.h b/libraries/shared/src/shared/Camera.h
index f41183479c..0df83cfb9a 100644
--- a/libraries/shared/src/shared/Camera.h
+++ b/libraries/shared/src/shared/Camera.h
@@ -38,7 +38,7 @@ class Camera : public QObject {
 
     Q_PROPERTY(glm::vec3 position READ getPosition WRITE setPosition)
     Q_PROPERTY(glm::quat orientation READ getOrientation WRITE setOrientation)
-    Q_PROPERTY(QString mode READ getModeString WRITE setModeString)
+    Q_PROPERTY(QString mode READ getModeString WRITE setModeString NOTIFY modeUpdated)
     Q_PROPERTY(QVariantMap frustum READ getViewFrustum CONSTANT)
 
 public: