Crosstrigging weird error

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Crosstrigging weird error

Postby slayer666 » Wed Apr 16, 2008 7:30 pm

If I gently tap the crash cymbal I get crosstrigging on hihat channel. But not when I strike the cymbal, then it's normal.
This is what I get in midi-ox. First some gentle tapping on the crash and at the end 1 hard hit on the crash and a choke at the end.
55901 2 -- 153 26 4 10 D 1 Note On
55902 2 -- 153 49 4 10 C# 3 Note On
56126 2 -- 153 26 0 10 D 1 Note Off
56127 2 -- 153 49 0 10 C# 3 Note Off
56158 2 -- 153 26 4 10 D 1 Note On
56382 2 -- 153 26 0 10 D 1 Note Off
56853 2 -- 153 49 16 10 C# 3 Note On
56858 2 -- 153 26 11 10 D 1 Note On
57079 2 -- 153 49 0 10 C# 3 Note Off
57083 2 -- 153 26 0 10 D 1 Note Off
57942 2 -- 153 26 11 10 D 1 Note On
57957 2 -- 153 49 4 10 C# 3 Note On
58168 2 -- 153 26 0 10 D 1 Note Off
58181 2 -- 153 49 0 10 C# 3 Note Off
58544 2 -- 153 26 11 10 D 1 Note On
58769 2 -- 153 26 0 10 D 1 Note Off
59060 2 -- 153 49 12 10 C# 3 Note On
59074 2 -- 153 26 9 10 D 1 Note On
59285 2 -- 153 49 0 10 C# 3 Note Off
59297 2 -- 153 26 0 10 D 1 Note Off
59581 2 -- 153 49 9 10 C# 3 Note On
59595 2 -- 153 26 9 10 D 1 Note On
59805 2 -- 153 49 0 10 C# 3 Note Off
59818 2 -- 153 26 0 10 D 1 Note Off
60124 2 -- 153 26 9 10 D 1 Note On
60125 2 -- 153 49 11 10 C# 3 Note On
60348 2 -- 153 26 0 10 D 1 Note Off
60349 2 -- 153 49 0 10 C# 3 Note Off
60578 2 -- 153 49 19 10 C# 3 Note On
60610 2 -- 153 26 11 10 D 1 Note On
60804 2 -- 153 49 0 10 C# 3 Note Off
60834 2 -- 153 26 0 10 D 1 Note Off
61395 2 -- 153 49 104 10 C# 3 Note On
61631 2 -- 153 49 0 10 C# 3 Note Off

63345 2 -- 153 49 127 10 C# 3 Note On
63582 2 -- 153 49 0 10 C# 3 Note Off

72810 2 -- 169 49 127 10 C# 3 Key Aftertouch
72811 2 -- 169 49 127 10 C# 3 Key Aftertouch
73062 2 -- 169 49 0 10 C# 3 Key Aftertouch
73062 2 -- 169 49 0 10 C# 3 Key Aftertouch

I can't figure out why the hihat trigs on crash. It's not vibrations from the stand. I happens even when I hold the crash in my hand with no contact to anything else.
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Re: Crosstrigging weird error

Postby elrules » Wed Apr 16, 2008 7:39 pm

maybe some current flows to that channel inyour circuit. bad connection or something else..
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Re: Crosstrigging weird error

Postby slayer666 » Wed Apr 16, 2008 8:20 pm

Did some more testing and I found that it only occurs when the hihat pedal is fully open, and not when it's closed.
I don't think it's a bad connection. Maybe a bad pedal pot or pedal cable.
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Re: Crosstrigging weird error

Postby dmitri » Wed Apr 16, 2008 9:55 pm

What MUXers do you have? Mine are 4051's and I cannot reproduce the issue but can guess where it comes from.
Can you add 100-470 Ohm resistor on the Pedal input? Does it fix the problem?
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Re: Crosstrigging weird error

Postby dmitri » Wed Apr 16, 2008 10:05 pm

Also, I guess you don't see the issue after a strong hit because crosstalk suppression kicks in. I suspect if you disable crosstalk suppression on HiHat input (set it to 0) you'll get a signal after a strong hit as well.
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Re: Crosstrigging weird error

Postby slayer666 » Fri Apr 18, 2008 7:54 am

dmitri wrote:Also, I guess you don't see the issue after a strong hit because crosstalk suppression kicks in. I suspect if you disable crosstalk suppression on HiHat input (set it to 0) you'll get a signal after a strong hit as well.

You were right about the crosstalk settings.
I mounted a resistor on the hihat pedal input (220R) but it didn't make any difference.
But......
I got rid of the problem by setting the Roland CY5 edge to switch.
I can't understand why it behaved like that. Weird to say the least....

Thanx Dmitri. :)
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Re: Crosstrigging weird error

Postby dmitri » Fri Apr 18, 2008 8:51 am

slayer666 wrote:
dmitri wrote:Also, I guess you don't see the issue after a strong hit because crosstalk suppression kicks in. I suspect if you disable crosstalk suppression on HiHat input (set it to 0) you'll get a signal after a strong hit as well.

You were right about the crosstalk settings.
I mounted a resistor on the hihat pedal input (220R) but it didn't make any difference.
But......
I got rid of the problem by setting the Roland CY5 edge to switch.
I can't understand why it behaved like that. Weird to say the least....

Thanx Dmitri. :)

What MUXers do you have? Can you try 1k resistor on the pedal input?
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Re: Crosstrigging weird error

Postby slayer666 » Fri Apr 18, 2008 12:17 pm

dmitri wrote:What MUXers do you have? Can you try 1k resistor on the pedal input?

I have both types of Muxes. It's the same problem with both of them.
I'll try a 1k resistor.
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Re: Crosstrigging weird error

Postby dmitri » Tue Apr 22, 2008 3:42 pm

slayer666 wrote:
dmitri wrote:What MUXers do you have? Can you try 1k resistor on the pedal input?

I have both types of Muxes. It's the same problem with both of them.
I'll try a 1k resistor.

Did you try it?
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Re: Crosstrigging weird error

Postby slayer666 » Tue Apr 22, 2008 4:18 pm

dmitri wrote:
slayer666 wrote:
dmitri wrote:What MUXers do you have? Can you try 1k resistor on the pedal input?

I have both types of Muxes. It's the same problem with both of them.
I'll try a 1k resistor.

Did you try it?


No, I will try it as soon as I get the time to do it. I've been quite busy. ;)

btw. I'm still having trouble finding the right settings for my pads. Too much double triggering. I've tried Admirs latest firmware on my Edrum ( also with dynamic threshold) and that works alot better for my pads.
I don't know which algoritm he used but he said something about mp3 compression inspired him. A strong hit masking a weak.

Can you make some experimental firmwares for me to try and see which one works best? I'm using Atmega644 now
Great work so far :)
\m/ slayer666
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