ARRANGERMAN Posted October 6, 2015 Share Posted October 6, 2015 This problem is already been submitted to the Facebook Casio PX-5S Discussion group and is being discussed there as well. This entry is submitted at the request of a technician at Casio Technical Services Help Desk.Casio PX-5S Stage Piano with OS 1.13. When I use my new Casio PX-5S to control my Roland BK-7m Arranger Module, I almost always get a sticking note on the L hand part of the BK-7m. The note plays through the remainder of the song and can only be shut off by turning the BK-7m and re-starting it. The Facebook discussion group was helpful. Per group advise I checked all MIDI connections and turned off the PX-5S's high resolution mode. Turning off the PX-5S's high resolution mode reduced the incidence of the L part sticking notes by 50 to 75%, but just playing for a while longer ALWAYS results in another sticky L part note. The problem can be resolved in both these unsatisfactory ways: 1. Using any other MIDI keyboard I own as the controller of the BK-7m, including a KORG PA2X Arranger. 2. Placing a Roland MC-50 Sequencer inbetween the PX-5S and the BK-7m. Apparently the MC-50, by some fluke, acts as a filter for the rogue MIDI message that is being sent out by the PX-5S. After many hours of using the PX-5S with the MC-50 between it and the BK-7m, I have not experienced a single stuck note. The cure is totally effective even without bothering to turn off the PX-5S's high resolution setting. The problem, of course, is that I do not want to have to take the Roland MC-50 Sequencer, extra MIDI cables, and the power supply for the MC-50 when I am playing out. Is there some setting I can change anywhere to fix the problem directly?Will re-flashing OS 1.13 help?Is the PX-5S defective and needs to be exchanged by the dealer?Is this a design flaw that means that even if I were given a new PX-5S, I would experience the same thing? This is such as astonishly great piano that I could not ever give it up, even if I have to carry an MC-50 with me everywere I go. Thanks for your consideration! Kerry WynneMember, Facebook Discussion Group, PX-5S Quote Link to comment Share on other sites More sharing options...
Display Name Posted October 6, 2015 Share Posted October 6, 2015 Hi Kerry. Where are we in the way of getting a MIDI monitor program or app to see if the PX-5S is sending different data in those two operational modes? There are several free ones out there. That is really the only way to see what is going on. Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted October 6, 2015 Share Posted October 6, 2015 ^^ This ^^. Really need to see what's being sent. Quote Link to comment Share on other sites More sharing options...
Choppin Posted October 7, 2015 Share Posted October 7, 2015 ^^^ As Above ^^^ but I like to speculate: Often, well maybe more in the past, midi instruments wouldn't receive a NOTE OFF event but rather a NOTE ON event with a 0 velocity. Depending on a few things, this could lead to notes being sustained (the note off never gets read properly). Taking a quick peek at the bk-7m midi spec., it can receive both a NOTE OFF status byte and a NOTE ON status byte with a 0 velocity as a NOTE OFF event. There are several settings for RX (midi receive). You should check through these to make sure it is set up to receive the correct information from the PX-5s. I'm pretty sure the PX transmits both a note on and a note off set of status bytes. The PX doesn't transfer a NOTE ON with a 0 velocity as it's note off signal - it actually transmits a NOTE OFF. Another thing to check on the bk-7m is whether or not it is receiving on the same channel. The PX will transmit on different channels depending on the zone. One other thing to check, is the clock mode. A incorrectly synced clock can also cause notes to sustain. Make sure the PX is the master and the bk-7m is the slave and the bk-7m is set to external clock or sync. Quote Link to comment Share on other sites More sharing options...
ARRANGERMAN Posted October 8, 2015 Author Share Posted October 8, 2015 Exciting news! The L Part sticky note problem with the Roland BK-7m has been solved with information received from several of you. It appears, as Choppin (above) said, that a lack of clock syncing might be causing the note off message to be lost. Here are the settings I had to each instrument to fix the problem: ON THE PX-5s High Resolution Mode OFFSync Mode MASTERBasic Channel: 01 (Set to this channel by default. Was not necessary to change it.) ON THE ROLAND BK-7m ARRANGER MODULE Note: The Module's receive channel was set to 12. Go to the Menu Mode to Edit to Midi to EDIT SYSTEMSet Sync RX to ONSet Mode to REMOTESet STL CLOCK to ON (Almost certainly "style" clock.)Set MIDI RX CHANNEL to Channel 01 to match the PX-5s' Transmit Channel. It would appear, as Choppin theorized, that the MIDI message to turn the L part note to OFF was sometmes being lost in transmission because the devices were not synced in time, the direction of communication for the commands was not specified, and the commands were not even travelling over the same channel. It is a wonder that I did not have worse problems. I experimented with the HIGH RESOLUTION setting. Even if all the other settings are correct, the L part sticky note problem still happens unless it is turned to OFF. The problem was with the user and not with either device. Thanks again, everyone. Kerry 1 Quote Link to comment Share on other sites More sharing options...
Display Name Posted October 8, 2015 Share Posted October 8, 2015 Were you running the arpeggiator on the PX-5S when the "stuck" notes happened? 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.