userfriendly's MegaDrum build

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Re: userfriendly's MegaDrum build

Postby dmitri » Wed May 27, 2009 9:50 pm

userfriendly wrote:I'm just confused that it sends the chick note on/off when the pedal moves up and not when it moves down. :|

This is the first time you mention the chick. Describe exactly how you get the chick.
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Re: userfriendly's MegaDrum build

Postby userfriendly » Thu May 28, 2009 3:10 am

dmitri wrote:
userfriendly wrote:I'm just confused that it sends the chick note on/off when the pedal moves up and not when it moves down. :|

This is the first time you mention the chick. Describe exactly how you get the chick.

I put the foot on the pedal and press it, then depress it again - the chick note is sent when the pedal has almost completely returned to its depressed state, at the end of the up motion.
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Re: userfriendly's MegaDrum build

Postby dmitri » Thu May 28, 2009 8:49 am

userfriendly wrote:
dmitri wrote:
userfriendly wrote:I'm just confused that it sends the chick note on/off when the pedal moves up and not when it moves down. :|

This is the first time you mention the chick. Describe exactly how you get the chick.

I put the foot on the pedal and press it, then depress it again - the chick note is sent when the pedal has almost completely returned to its depressed state, at the end of the up motion.

Please, make a screenshot of MIDI-OX when doing this.
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Re: userfriendly's MegaDrum build

Postby userfriendly » Thu May 28, 2009 1:03 pm

dmitri wrote:
userfriendly wrote:I put the foot on the pedal and press it, then depress it again - the chick note is sent when the pedal has almost completely returned to its depressed state, at the end of the up motion.

Please, make a screenshot of MIDI-OX when doing this.


Gladly. Here goes:

Image
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Re: userfriendly's MegaDrum build

Postby gastric » Thu May 28, 2009 1:19 pm

Press the pedal, goes back to 127, foot off the pedal, goes to 0.


That's exactly how it's supposed to work. And you'll get the chick trigger near CC#4 = 127.

In your MIDIOX screenshot it's doing just that. The MIDI shows the pedal starting closed (pedal closed, CC#4=127), you taking your foot off the pedal (pedal open, CC#4=0), then pressing the pedal again (pedal closed, CC#4=127). The foot chick is triggering exactly as it should.

But verbally you're saying you get the chick when you take your foot OFF the pedal. If that's true, then I'd think you have the pedal polarity switched. And your hat triggering would be completely ass backwards in addition to the foot chick being at the wrong end of the pedal travel. You'd trigger closed hat sounds with the pedal open and strike the hihat, and full open hihat sounds when you press the pedal and strike the hihat.

Note we've only talked about your pedal and MD. The other end of things is your VST, many of which have their own foot chick triggering algorithm, such as BFD.
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Re: userfriendly's MegaDrum build

Postby userfriendly » Thu May 28, 2009 1:26 pm

gastric wrote:But verbally you're saying you get the chick when you take your foot OFF the pedal. If that's true, then I'd think you have the pedal polarity switched. And your hat triggering would be completely ass backwards in addition to the foot chick being at the wrong end of the pedal travel. You'd trigger closed hat sounds with the pedal open and strike the hihat, and full open hihat sounds when you press the pedal and strike the hihat.

Precisely. I guess my question is, how do I switch pedal polarity back again?
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Re: userfriendly's MegaDrum build

Postby dmitri » Thu May 28, 2009 1:32 pm

If the signal is read on the tip, swap the ring and the sleeve.
If the signal is read on the ring, swap the tip and the sleeve.
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Re: userfriendly's MegaDrum build

Postby userfriendly » Thu May 28, 2009 1:44 pm

dmitri wrote:If the signal is read on the tip, swap the ring and the sleeve.
If the signal is read on the ring, swap the tip and the sleeve.

Now I'm confused again. I thought this was, like the kick drum jack, a mono input? I don't have the ring connected to anything at the moment, after reading gastric's comment on page 2:
gastric wrote:I believe that's how it should be, and is how I have wired all of my pedals. Tip-sleeve, standard for a mono device. Sleeve is the ground.

According to my multimeter, the variable impedance of the controller is only measured between tip and sleeve.
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Re: userfriendly's MegaDrum build

Postby dmitri » Thu May 28, 2009 2:18 pm

userfriendly wrote:
dmitri wrote:If the signal is read on the tip, swap the ring and the sleeve.
If the signal is read on the ring, swap the tip and the sleeve.

Now I'm confused again. I thought this was, like the kick drum jack, a mono input? I don't have the ring connected to anything at the moment, after reading gastric's comment on page 2:
gastric wrote:I believe that's how it should be, and is how I have wired all of my pedals. Tip-sleeve, standard for a mono device. Sleeve is the ground.

According to my multimeter, the variable impedance of the controller is only measured between tip and sleeve.

Is there a switch on the pedal?
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Re: userfriendly's MegaDrum build

Postby userfriendly » Thu May 28, 2009 2:27 pm

Nope, I just checked. It's not quite a pedal, it's this controller from Jobeky:
Image
Works out of the box with Roland modules, for example.

Also, just in order for me to recap, the input is mono, right? So only tip and sleeve are connected. I can switch polarity between those two all I want, since a resistor doesn't have polarity it won't do anything. The other thing I could switch around are the high and low impedance inputs, but that doesn't have much to do with polarity either. I don't know what I could have possibly done wrong with the jumper board. I've done it so that it I can switch stuff as shown here:
Image
Not much to get wrong here as it simply provides the switchage for both aforementioned switch possibilities.
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