fixing check box issues

interface/resources/qml/hifi/audio/Audio.qml

@@ -129,7 +129,7 @@ Rectangle {
                     id: stereoMic
                     spacing: muteMic.spacing;
                     text: qsTr("Use stereo for stereo devices");
-                    checked: false;
+                    checked: AudioScriptingInterface.isStereoEnabled();
                     onClicked: {
                         var success = AudioScriptingInterface.setStereoInput(checked);
                         if (!success) {

libraries/audio-client/src/AudioClient.h

@@ -193,6 +193,7 @@ public slots:
     bool isMuted() { return _muted; }
 
     virtual bool setIsStereoInput(bool stereo) override;
+    virtual bool isStereoEnabled() override { return _isStereoInput; }
 
     void setNoiseReduction(bool isNoiseGateEnabled);
     bool isNoiseReductionEnabled() const { return _isNoiseGateEnabled; }

libraries/audio/src/AbstractAudioInterface.h

@@ -42,6 +42,8 @@ public slots:
     virtual bool shouldLoopbackInjectors() { return false; }
 
     virtual bool setIsStereoInput(bool stereo) = 0;
+
+    virtual bool isStereoEnabled() = 0;
 };
 
 Q_DECLARE_METATYPE(AbstractAudioInterface*)

libraries/script-engine/src/AudioScriptingInterface.cpp

@@ -67,3 +67,11 @@ bool AudioScriptingInterface::setStereoInput(bool stereo) {
     }
     return stereoInputChanged;
 }
+
+bool AudioScriptingInterface::isStereoEnabled() {
+    bool stereoEnabled = false;
+    if (_localAudioInterface) {
+        stereoEnabled = _localAudioInterface->isStereoEnabled();
+    }
+    return stereoEnabled;
+}

libraries/script-engine/src/AudioScriptingInterface.h

@@ -36,6 +36,7 @@ protected:
     Q_INVOKABLE ScriptAudioInjector* playSystemSound(SharedSoundPointer sound, const QVector3D& position);
 
     Q_INVOKABLE bool setStereoInput(bool stereo);
+    Q_INVOKABLE bool isStereoEnabled();
 
 signals:
     void mutedByMixer(); /// the client has been muted by the mixer