Fix mod meters in PA/RT

audiohandler.h

@@ -113,7 +113,7 @@ private:
     volatile bool ready = false;
     audioPacket tempBuf;
     quint16 currentLatency;
-    float amplitude;
+    float amplitude=0.0;
     qreal volume = 1.0;
 
     audioSetup setup;

pahandler.cpp

@@ -313,5 +313,5 @@ int paHandler::getLatency()
 
 quint16 paHandler::getAmplitude()
 {
-	return amplitude;
+	return static_cast<quint16>(amplitude * 255.0);
 }

pahandler.h

@@ -80,7 +80,7 @@ private:
     quint32         lastSentSeq = 0;
 
     quint16 currentLatency;
-    quint16 amplitude = 0;
+    float amplitude=0.0;
     qreal volume = 1.0;
 
     audioSetup setup;

rthandler.cpp

@@ -334,5 +334,5 @@ int rtHandler::getLatency()
 
 quint16 rtHandler::getAmplitude()
 {
-	return amplitude;
+	return static_cast<quint16>(amplitude * 255.0);
 }

rthandler.h

@@ -96,7 +96,7 @@ private:
     quint32         lastSentSeq = 0;
 
     quint16 currentLatency;
-    quint16 amplitude = 0;
+    float amplitude = 0.0;
     qreal volume = 1.0;
 
     audioSetup setup;