Pad settings...the meaning of each?

[dschrammie]

Glad you got it working. I have used MCT several times with that module.

Hey J -
Yeah, I had set up the MIDI settings in MCT as going through my Layla card...seemed to make sense to me. That's my MIDI I/O, MCT wants to know MIDI settings, it must mean that I tell it the Layla card right? Well, apparently the answer to that is no. Once I changed it to "USB Audio Device" it transmitted info.

I'd still love to get an explanation of the graphs that are on the pads settings page, the ones for CompLevel and Level Shift.
And the others questions that I wrote up regarding MinScan and DualMidWidth. I still don't know what "Positional 1, 2, or 3" means under positional sensing. While on that particular screen I was tapping just outside the center (so I wouldn't be directly on the piezo) and the cursor on the MD LCD was all over the place...didn't have any consistency at all. I'm sure it's an error on my part, I just don't know what.

[dmitri]

Glad you got it working. I have used MCT several times with that module.

Hey J -
Yeah, I had set up the MIDI settings in MCT as going through my Layla card...seemed to make sense to me. That's my MIDI I/O, MCT wants to know MIDI settings, it must mean that I tell it the Layla card right? Well, apparently the answer to that is no. Once I changed it to "USB Audio Device" it transmitted info.

I'd still love to get an explanation of the graphs that are on the pads settings page, the ones for CompLevel and Level Shift.
And the others questions that I wrote up regarding MinScan and DualMidWidth. I still don't know what "Positional 1, 2, or 3" means under positional sensing.

3 variations of the algorithm for Positional sensing. For different pads different variations of the algorithm may work better. It is explained in https://www.megadrum.info/~megadrum/con ... s-settings

While on that particular screen I was tapping just outside the center (so I wouldn't be directly on the piezo) and the cursor on the MD LCD was all over the place...didn't have any consistency at all. I'm sure it's an error on my part, I just don't know what.

Have you read viewtopic.php?f=3&t=1215? This link is given in MegaDrum firmware change log for version the 20100516 when Positional sensing was introduced.

[dschrammie]

3 variations of the algorithm for Positional sensing. For different pads different variations of the algorithm may work better. It is explained in https://www.megadrum.info/~megadrum/con ... s-settings

Okay, so it's 3 different algorithms and we just experiment to determine which seems to work best. I've read the explanation over and over many times, even before I had a MegaDrum to start with. Honestly, I'm sure it makes perfect sense to you, but the explanation still has me scratching my head over and over...it's just written in a way that confuses me.

Have you read viewtopic.php?f=3&t=1215? This link is given in MegaDrum firmware change log for version the 20100516 when Positional sensing was introduced.

Yep, I've read that thread a few times as well. I'll have to check what firmware it says it has when I get home and can fire it up. Jman had said that he loaded whatever was the most recent firmware prior to when the protected bootloader was introduced. And to be completely honest, since Jman did the loading of the firmware, I actually don't even know how to load firmware on this (since it doesn't have the protected bootloader chip thingy).
I'll also have to check on the wiring that I have on my piezos. Off the top of my head I think I have the opposite of the Beatnik...I don't know/understand what "negative first half wave" means, but I guess if my piezos are wired in the opposite way then that could have something to do with it. I have absolutely no desire to have to build a precision recitifier.
In your demonstration video of the positional sensing there are 3 sets of two-digit numbers that are constantly changing with each strike. Is it explained somewhere what those numbers mean? If so, I missed it.

And finally, I do believe that I probably need to add a trimpot to my snare head input...I meant to do that but got distracted and didn't get around to it.

I think what I'll probably do is add the trimpot and then take a quick little video of what I have going on and then maybe someone can give me some direction. Honestly, I do the best I can to read through this stuff and really try to comprehend it...but unfortunately some of the info just doesn't seem to be sinking in for me and as a result I have to ask a lot of questions that are probably very elementary to some people.

[dmitri]

3 variations of the algorithm for Positional sensing. For different pads different variations of the algorithm may work better. It is explained in https://www.megadrum.info/~megadrum/con ... s-settings

Okay, so it's 3 different algorithms and we just experiment to determine which seems to work best. I've read the explanation over and over many times, even before I had a MegaDrum to start with. Honestly, I'm sure it makes perfect sense to you, but the explanation still has me scratching my head over and over...it's just written in a way that confuses me.

Have you read viewtopic.php?f=3&t=1215? This link is given in MegaDrum firmware change log for version the 20100516 when Positional sensing was introduced.

Yep, I've read that thread a few times as well.

I pointed you to the topic because I was sure you didn't look at it.

I'll have to check what firmware it says it has when I get home and can fire it up. Jman had said that he loaded whatever was the most recent firmware prior to when the protected bootloader was introduced. And to be completely honest, since Jman did the loading of the firmware, I actually don't even know how to load firmware on this (since it doesn't have the protected bootloader chip thingy).
I'll also have to check on the wiring that I have on my piezos. Off the top of my head I think I have the opposite of the Beatnik...I don't know/understand what "negative first half wave" means, but I guess if my piezos are wired in the opposite way then that could have something to do with it. I have absolutely no desire to have to build a precision recitifier.
In your demonstration video of the positional sensing there are 3 sets of two-digit numbers that are constantly changing with each strike. Is it explained somewhere what those numbers mean? If so, I missed it.

Yes, it is explained in https://www.megadrum.info/ - it is a "calculated PS value of the hit for currently selected PS algorithm (1, 2 or 3) which you should use for setting PositionalLow and PositionalHi properly"

And finally, I do believe that I probably need to add a trimpot to my snare head input...I meant to do that but got distracted and didn't get around to it.

I think what I'll probably do is add the trimpot and then take a quick little video of what I have going on and then maybe someone can give me some direction. Honestly, I do the best I can to read through this stuff and really try to comprehend it...but unfortunately some of the info just doesn't seem to be sinking in for me and as a result I have to ask a lot of questions that are probably very elementary to some people.

Well, I might be not the best documents writer so if the question is something like "I don't understand anything" I will have to explain all over again and it will most likely be written in the same language as the documentation which is already there. Seems like a pointless exercise. On the other hand, if the question is something like "I have a 14" Drumtec snare, it is not too hot. My settings for snare are ... (list of settings). I set PositionalLv to x, PositionalLow to y PositionalHigh to z but all my hits are detected as centre hits, why?" then I'll have some starting data to look at a problem/issue/misunderstanding. I tried to highlight it in viewtopic.php?f=3&t=352