Myrk membranes

[AKA Wayne]

Hey Doug

Does your myrk work with the edrumin?

[AKA Wayne]

Here is my switch on my hi hat.

https://flic.kr/p/2irQVPp

[AKA Wayne]

That’s unfortunate. It works fine with my td12. I know a lot of people use these for diy.

Could it be an issue with my 1/8 to 1/4 adapter cord?

Is it possible to an an option to disable the test?

I don't think there is any compatibility issues with using membrane switches. I suspect there's an issue with your particular membrane switch. Do you have a multi meter? If you set it to the 200k Ohm range and measure the resistance across from the ring to the sleeve of your cable, you should read open-loop (open circuit). I suspect you'll find the resistance you get is close to 150k Ohms, which indicates a problem.

Might be the adapter, might be a faulty cable, might be the way you've soldered wires to the membrane, and it might be the way you attached the membrane to the pad. If you have an unused Myrk membrane, it would be helpful to measure it's resistance before it's installed and has wires soldered to it.

Does it make sense that it would still work on my td12? It works fine there.

[AKA Wayne]

I’ve verified it still works on my td12.

Sorry for the accidental multi posts on the phone

[dsteinschneider]

Here is my switch on my hi hat.

https://flic.kr/p/2irQVPp

Thanks for the photo - a picture is worth a thousand words! I wasn't really understanding it until I saw it - very simple.

BTW, one of the two cymbals I assembled at the same time in a very careful way is acting funny. It goes into a mode where every hit is immediately choked. If I press on the leads it temporarily stops doing it. I've taken that one off the set and am going to investigate but I have to say, the soldering was done the same exact way on both cymbals which makes me wonder if there is something wrong with the membrane switch itself.

Will test both with the eDrumin tomorrow night

[Rob]

Membrane switches aren't designed to be directly hit with hard wooden sticks and that has likely damaged it. I can't even be sure if a damaged switch membrane will work properly with the eDRUMin circuitry even if you get around the safety check. You can get around the safety check and find out by following this procedure.

1. Plug in the eDRUMin.
2. Connect the TRS cable to the input you would like to use (pad not connected).
3. Set the pad type to dual zone cymbal.
4. Connect the pad.

[AKA Wayne]

Membrane switches aren't designed to be directly hit with hard wooden sticks and that has likely damaged it. I can't even be sure if a damaged switch membrane will work properly with the eDRUMin circuitry even if you get around the safety check. You can get around the safety check and find out by following this procedure.

1. Plug in the eDRUMin.
2. Connect the TRS cable to the input you would like to use (pad not connected).
3. Set the pad type to dual zone cymbal.
4. Connect the pad.

My switch is covered by a foam tape strip and rubber trim. It was installed like Mr Myrk suggested and since it is functioning on the roland adequately I have to assume that it is functional. Here is the finished pic of it. https://flic.kr/p/2irPurP

I tried what you said and it got the cymbal working. However the switch is too sensitive. I know it functions properly because when I hit it directly it gives an edge note and when I pinch it I get the choke note. But I also get false triggers when playing anything over light hit on the bow. Direct hits to the bow piezo trigger the bow so it is correct. Is there a way to add a feature to reduce the rim gain or sensitivity? It works fine on the roland so I know it’s possible. I want to use the edrumin for the hall sensor so this is key for me. Thanks Rob!

[Rob]

At this point I think your best bet would to be to fix your membrane. I think you will find that there's too much pressure on it, causing it to be in a half closed state.

[AKA Wayne]

At this point I think your best bet would to be to fix your membrane. I think you will find that there's too much pressure on it, causing it to be in a half closed state.

Hey Rob. Thanks for the help. I took the trim completely off and I was still getting false triggers from the rim when striking the bow. At this point there is zero pressure on the switch so must be triggered by vibration alone. This leads me to believe that the software is too sensitive to the switch. I know it workS because it’s fine on the roland. A main reason I got the edrumin was for the hall sensor so I really want to get this hi hat working. Thanks!

[AKA Wayne]

Here’s an update. I contacted rob through tech support to help me out and he delivered. He pegged it as a hardware issue right away. He thought it was a faulty switch causing the error. I figured out with his help and a multimeter that the switch was good. He then suspected it was a current path between the ring and tip. Some investigating with the multimeter led me to the terminals on the jack. Turns out the ring terminal was in contact with the tip of the male end of my cable when it was inserted in the jack. I bent the ring tab a bit and now it works perfect. I’m back on track. No errors and edge switch is functioning perfectly.

Thanks Rob for a fantastic product and great customer service!