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Phantom Midi messages

PostPosted: Thu Apr 24, 2014 7:19 pm
by Nwagod
Before I get into my issue, I would like to first of all give you kudos Dmitri. This truly is an amazing module. It's almost a year since I purchased my megadrum, and I haven't regretted it. I have tweaked it to the point of being satisfied with the results, and it's no doubt a TD20 alternative. There are a few issues I haven't yet figured out and I'm hoping someone could offer assistance.

I am getting phantom notes in my megadrum that come out of no where. its a flood of midi messages that last for about 10 to 20 seconds at a time. its been happening since I got it. I've tried everything I know to try, but the problem still persist. It seems like the frequency at which it's occuring is increasing to point that I can't rely on it for recording sessions.

Any thoughts on this? I can post a video to show what's happening

Re: Phantom Midi messages

PostPosted: Thu Apr 24, 2014 8:22 pm
by dmitri
What are those MIDI messages?
When it happens?

Re: Phantom Midi messages

PostPosted: Thu Apr 24, 2014 11:48 pm
by Nwagod
here is a video of what's happening.

https://plus.google.com/u/1/11780975446 ... s?hl=en_US

Re: Phantom Midi messages

PostPosted: Fri Apr 25, 2014 4:53 am
by BiggerNoise
That's a bit like an issue that I had with a tom input. The fix was raising the threshold on the input. If you haven't already tried that, you might give it a go.

Re: Phantom Midi messages

PostPosted: Fri Apr 25, 2014 6:58 am
by airflamesred
What other bits of equipment are you using, and are they earthed? This is where I would look and also un plug and re plug evcerything in.

Re: Phantom Midi messages

PostPosted: Fri Apr 25, 2014 9:25 am
by ignotus
Whenever I've had similar problems it was always because of grounding issues - not because of other equipment but because a ground wire had become slightly unattached anywhere between the piezo itself and the module. Sometimes it was where it is soldered to the piezo and others it was because a header had loosened a bit in the module. Does the same pad trigger randomly when you plug it into another input? If so I'd check the piezo.

Re: Phantom Midi messages

PostPosted: Thu May 01, 2014 4:56 pm
by Nwagod
Hi Guys, thanks for all the valuable information. I just realized that it might be cable related. Initially was going to build my own cables, but due to money constraints I decided use mp3 aux cables with adapters. It seemed to work out at first. I'm just now realizing that it might be the root cause of all the intermittent seemingly random midi messages. I'll try upgrading my cables and see if it fixes this issue.