Members Prog Posted February 25, 2008 Members Share Posted February 25, 2008 A guy was showing me how his Roland keyboard was resulting in duplicate notes when sent to the Cakewalk sequencer. Sure enough, when a single quarter note was played, it appeared in Cakewalk with TWO staves on the note. Upon playback, it sounded the note twice. Only the MIDI OUT of the Roland is being used. It was a Roland rompler from about 1997, so there shouldn't be any ancient MIDI problem (I guess). I recall reading something about this a few years back. Anyone recall a problem with Roland's MIDI data producing duplicate notes? Is it something to do with Note Off commands, maybe? Link to comment Share on other sites More sharing options...
Members shambler Posted February 25, 2008 Members Share Posted February 25, 2008 I don't know about Cakewalk but in Cubase this problem is caused by the midi interface and using/not using emulated ports. Link to comment Share on other sites More sharing options...
Members Jeff Irok Posted February 25, 2008 Members Share Posted February 25, 2008 I think it's Roland showing off its new position as a Cakewalk majority shareholder.... Link to comment Share on other sites More sharing options...
Members jchas Posted February 25, 2008 Members Share Posted February 25, 2008 Is it possible that Roland is set up with undefined Layers or Splits and both Layers/Splits are sending identical Channel info? Link to comment Share on other sites More sharing options...
Members Prog Posted February 25, 2008 Author Members Share Posted February 25, 2008 Thanks for the help. Some further info: The keyboard was swapped with an Ensoniq and an Ion: no problem occurred. Finale software was used instead: SAME problem. Only a single layer was active, and only one MIDI channel was set up to record. The interface is a MidiSport 2x2 via USB. I know I read something about this a few years back, but I can't remember what the reason was. Note Offs are being sent as a zero velocity notes (hence, two notes)? I don't know about Cakewalk but in Cubase this problem is caused by the midi interface and using/not using emulated ports.I'll look into this kind of thing. Perhaps if a soft-MIDI Thru is engaged or not? The 2x2 only has 1 port. Link to comment Share on other sites More sharing options...
Members jchas Posted February 25, 2008 Members Share Posted February 25, 2008 I know I read something about this a few years back, but I can't remember what the reason was. Note Offs are being sent as a zero velocity notes (hence, two notes)? I'll look into this kind of thing. Perhaps if a soft-MIDI Thru is engaged or not? QUOTE] I don't think it's a note-off command as you would see it as different note-start times in the sequencer. If the notes start times are identical (or off by 1 clock-tick) it would have to be either a CC (like velocity or AT) being mis-interpreted as Note-On, or more than likely, a Soft-Thru switch within the Roland sending original and Echoed data. Try playing a note and applying a CC like pitch-bend and see if it is duplicated as well. That would definately point towards soft-thru. Link to comment Share on other sites More sharing options...
Members noguud Posted February 25, 2008 Members Share Posted February 25, 2008 I use a version of cakewalk for a sequencer and will hear notes twice if MIDI echo is turned on, but I don't think I've even seen it capture an event twice.... Link to comment Share on other sites More sharing options...
Members Prog Posted February 25, 2008 Author Members Share Posted February 25, 2008 Interesting. It is odd that it is only a result of a Roland keyboard, and no other brand. Link to comment Share on other sites More sharing options...
Members poumtschak Posted February 25, 2008 Members Share Posted February 25, 2008 Since its a Wintel computer, why don't you use MIDIOX to monitor what the synth is sending, realtime? Roland keyboard ROMpler, circa 1997? XP-60/80? Link to comment Share on other sites More sharing options...
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