MIDI expert wanted: Continuous Controller Messages

Related to my other thread https://www.steinberg.net/forums/viewtopic.php?f=246&t=133945 I have some questions:

My MIDI keyboard (Behringer U-Control UMX49, connected via USB cable) continuously sends Controller Messages to my computer as you can see in this short log:

22:11:34.657	From UMX 49	Control	1	Brightness	11
22:11:34.663	From UMX 49	Control	1	Reverb Send Level	17
22:11:34.668	From UMX 49	Control	1	Chorus Send Level	22
22:11:34.759	From UMX 49	Control	1	Brightness	19
22:11:35.139	From UMX 49	Control	1	Reverb Send Level	20
22:11:35.255	From UMX 49	Control	1	Brightness	8
22:11:35.355	From UMX 49	Control	1	Attack Time	11
22:11:35.468	From UMX 49	Control	1	Brightness	11
22:11:35.513	From UMX 49	Control	1	Brightness	20
22:11:35.545	From UMX 49	Control	1	Attack Time	18
22:11:35.927	From UMX 49	Control	1	Pan (coarse)	18
22:11:37.081	From UMX 49	Control	1	Brightness	7
22:11:37.219	From UMX 49	Control	1	Attack Time	8
22:11:38.569	From UMX 49	Control	1	Attack Time	10
22:11:38.582	From UMX 49	Control	1	Brightness	11
22:11:38.597	From UMX 49	Control	1	Brightness	19
22:11:38.693	From UMX 49	Control	1	Attack Time	18
22:11:40.085	From UMX 49	Control	1	Brightness	7
22:11:40.339	From UMX 49	Control	1	Brightness	12
22:11:40.605	From UMX 49	Control	1	Pan (coarse)	7
22:11:40.658	From UMX 49	Control	1	Brightness	20
22:11:42.544	From UMX 49	Control	1	Release Time	7
22:11:42.600	From UMX 49	Control	1	Chorus Send Level	12
22:11:42.624	From UMX 49	Control	1	Chorus Send Level	10

Is this a normal behaviour of a MIDI keyboard?

Can these Controller Messages cause changes to the Quick Controllers in HSSE?

Thomas

PS: All rotary controls of the keyboard are set to “0”.

No it’s not normal behaviour.
It should send these controllers only when you move the physical knob/button associated.

You may want to check out this thread about controllers that are generating continuous sysex data
https://www.steinberg.net/forums/viewtopic.php?f=246&t=120457&p=686498&hilit=controller#p686498

Perhaps your situation is related.

I certainly wouldn’t expect a MIDI controller keyboard to send out these messages unless you were actively moving the controls. I think that HALion does respond to some of these controllers so that will be having an effect on playback.

I think there’s two likely reasons for why these messages are being sent. One is that there’s a software glitch in the keyboard, so you could try doing a factory reset on it (hold down ASSIGN and press both OCTAVE SHIFT buttons). The other reason could be that there’s dust in the controls so it’s sending out random messages. Try using a can of compressed air to see if that will blast the dust away.

Doing a factory reset stops the continuous controller messages for a while. But although I don’t touch the keyboard, they start again after a minute or so.

I’ll try cleaning the controls with comprressed air.

Thank you for your advice, Paul.

Thomas

Since it’s CC1 I would pay attention to the mod wheel and maybe massage that a bit :slight_smile:

Check the next column - there’s a variety of controllers including cc10, cc91 and cc73, which suggests problems with a number of controls

Indeed, but oddly random… I’d suspect a bad power supply (wrong voltage?) or bad batteries… or USB Voltage too low… failing that return for replacement…

fratveno,
you‘re right. It was the power supply. Seems, that the keyboard doesn‘t get enough power via USB cable. I applied some batteries and the Controller Messages stopped.

Thank you,

Thomas