Now EQ will resume as normal after waking up from sleep

Source/AppDelegate.mm

@@ -23,6 +23,7 @@ NSPopover *settingsPopover;
 NSPopover *eqPopover;
 NSEvent *eqPopoverTransiencyMonitor;
 NSEvent *settingsPopoverTransiencyMonitor;
+NSTimer *deviceWatcher;
 
 
 @implementation AppDelegate
@@ -96,7 +97,14 @@ NSEvent *settingsPopoverTransiencyMonitor;
     [API startPinging];
     [API sendPresets];
     
-    [Utilities executeBlock:^{
+    [self startWatchingDevices];
+    
+    [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(goToSleep) name:NSWorkspaceWillSleepNotification object:NULL];
+    [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(wakeUpFromSleep) name:NSWorkspaceDidWakeNotification object:NULL];
+}
+
+-(void)startWatchingDevices{
+    deviceWatcher = [Utilities executeBlock:^{
         AudioDeviceID selectedDeviceID = [Devices getCurrentDeviceID];
         if(selectedDeviceID != [EQHost getPassthroughDeviceID]){
             [EQHost createEQEngineWithOutputDevice: selectedDeviceID];
@@ -104,6 +112,23 @@ NSEvent *settingsPopoverTransiencyMonitor;
     } every:1];
 }
 
+-(void)goToSleep{
+    [deviceWatcher invalidate];
+    deviceWatcher = nil;
+    [EQHost deleteEQEngine];
+    [Devices switchToDeviceWithID:[EQHost getSelectedOutputDeviceID]];
+    [EQHost detectAndRemoveRoguePassthroughDevice];
+}
+
+-(void)wakeUpFromSleep{
+    [self goToSleep]; //just in case
+    
+    //delay the start a little so os has time to catchup with the Audio Processing
+    [Utilities executeBlock:^{
+        [self startWatchingDevices];
+    } after:3];
+}
+
 -(void)checkAndInstallDriver{
     if([Devices legacyDriverInstalled]){
         if(![Devices eqMacDriverInstalled]){

Source/Common/EQHost/EQHost.mm

@@ -198,7 +198,7 @@ static NSDate *runStart;
     AudioObjectGetPropertyDataSize(pluginID, &pluginAOPA, 0, NULL, &outDataSize);
     
     AudioObjectGetPropertyData(pluginID, &pluginAOPA, 0, NULL, &outDataSize, &ID);
-    
+    passthroughDeviceID = 0;
     return;
 }