diff --git a/src/minidexed.cpp b/src/minidexed.cpp
index 0240ea5..328eab4 100644
--- a/src/minidexed.cpp
+++ b/src/minidexed.cpp
@@ -948,13 +948,7 @@ void CMiniDexed::ProcessSound (void)
 
 		assert (CConfig::ToneGenerators == 8);
 
-		// swap stereo channels if needed
 		uint8_t indexL=0, indexR=1;
-		if (m_bChannelsSwapped)
-		{
-			indexL=1;
-			indexR=0;
-		}
 		
 		// BEGIN TG mixing
 		float32_t tmp_float[nFrames*2];
@@ -1003,6 +997,13 @@ void CMiniDexed::ProcessSound (void)
 			}
 			// END adding reverb
 	
+			// swap stereo channels if needed prior to writing back out
+			if (m_bChannelsSwapped)
+			{
+				indexL=1;
+				indexR=0;
+			}
+
 			// Convert dual float array (left, right) to single int16 array (left/right)
 			for(uint16_t i=0; i<nFrames;i++)
 			{
diff --git a/src/serialmididevice.cpp b/src/serialmididevice.cpp
index 186efc3..883fd4d 100644
--- a/src/serialmididevice.cpp
+++ b/src/serialmididevice.cpp
@@ -98,7 +98,13 @@ void CSerialMIDIDevice::Process (void)
 			continue;
 		}
 
-		if(m_nSysEx > 0)
+		// System Real Time messages may appear anywhere in the byte stream, so handle them specially
+		if(uchData == 0xF8 || uchData == 0xFA || uchData == 0xFB || uchData == 0xFC || uchData == 0xFE || uchData == 0xFF)
+		{
+			MIDIMessageHandler (&uchData, 1);
+			continue;
+		}
+		else if(m_nSysEx > 0)
 		{
 			m_SerialMessage[m_nSysEx++]=uchData;
 			if ((uchData & 0x80) == 0x80 || m_nSysEx >= MAX_MIDI_MESSAGE)