diff --git a/libs/ardour/midi_diskstream.cc b/libs/ardour/midi_diskstream.cc
index e916fef263..52b93015c8 100644
--- a/libs/ardour/midi_diskstream.cc
+++ b/libs/ardour/midi_diskstream.cc
@@ -750,9 +750,6 @@ MidiDiskstream::read (framepos_t& start, nframes_t dur, bool reversed)
 				// Synthesize LoopEvent here, because the next events
 				// written will have non-monotonic timestamps.
 				_playback_buf->write(loop_end - 1, LoopEventType, sizeof (framepos_t), (uint8_t *) &loop_start);
-				cout << "Pushing LoopEvent ts=" << loop_end-1
-				     << " start+this_read " << start+this_read << endl;
-
 				start = loop_start;
 			} else {
 				start += this_read;
diff --git a/libs/ardour/midi_ring_buffer.cc b/libs/ardour/midi_ring_buffer.cc
index 4c89cbcf4c..eb83d41645 100644
--- a/libs/ardour/midi_ring_buffer.cc
+++ b/libs/ardour/midi_ring_buffer.cc
@@ -27,7 +27,7 @@ using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-/** Read a block of MIDI events from buffer into a MidiBuffer.
+/** Read a block of MIDI events from this buffer into a MidiBuffer.
  *
  * Timestamps of events returned are relative to start (i.e. event with stamp 0
  * occurred at start), with offset added.
@@ -96,9 +96,7 @@ MidiRingBuffer<T>::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes
 
 		// This event marks a loop end (i.e. the next event's timestamp will be non-monotonic)
 		if (ev_type == LoopEventType) {
-			cerr << "MRB loop boundary @ " << ev_time << endl;
-			
-			assert (ev_size == sizeof (nframes_t));
+			assert (ev_size == sizeof (framepos_t));
 			nframes_t loop_start;
 			read_contents (ev_size, (uint8_t *) &loop_start);