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-rw-r--r--libs/ardour/midi_port.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/libs/ardour/midi_port.cc b/libs/ardour/midi_port.cc
index b12999cc9f..ccd6e9848b 100644
--- a/libs/ardour/midi_port.cc
+++ b/libs/ardour/midi_port.cc
@@ -117,6 +117,10 @@ MidiPort::get_midi_buffer (pframes_t nframes)
if (buf[0] == 0xfe) {
/* throw away active sensing */
continue;
+ } if (buf[0] == 0x90 && buf[2] == 0) {
+ /* normalize note on with velocity 0 to proper note off */
+ buf[0] = 0x80; /* note off */
+ buf[2] = 0x40; /* default velocity */
}
/* check that the event is in the acceptable time range */