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Mar 22nd, 2019, 6:19pm


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   Disabling midi messages from a single sensor
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   Author  Topic: Disabling midi messages from a single sensor  (Read 55 times)
boyanmw
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Disabling midi messages from a single sensor
« on: Mar 13th, 2019, 3:34pm »
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Hi everybody,
I own SL88 Studio /Fatar TP100LR keybed with 3 sensors/, not bad controller ,but the distance between the graphite contacts on the rubber strip is too close /they are 3 for each key/ and when I play easy, gentle, I get often midi notes interrupted - short midi note with desired velocity, brief interrupt /caused by slight unintentional move of the hand/, followed by normal length midi note with near zero velocity. And this is only because they placed 3 contacts per key and the key has about 1.5 mm move from off to on. It's terrible.  
 
- My question is- is there a way to isolate the middle 2nd contact, so its midi messages only to be disabled with some kind of mapping?  
 
As far as I know, other manufacturers such as Arturia, Nord, etc. do use the same Fatar keybed, but with 2 sensors enabled only, most likely because of this abnormal short distance between the contacts.  
Thanks in advance for any help Wink
« Last Edit: Mar 13th, 2019, 3:37pm by boyanmw » IP Logged
Breath
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Re:  Disabling midi messages from a single se
« Reply #1 on: Mar 18th, 2019, 9:56pm »
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Hi
that sounds like a faulty keyboard I would take it back for repair if you can.
If not, I would strip it down and make sure things haven't come loose.
 
Although Fatar don't seem to want to make the mechanical details too public, it looks like a standard 2 contact velocity sensing key bed to me.
I couldn't see the third contact from their web pictures.
 
There is not much Midiox can do as it couldn't distinguish between a faulty note and a deliberate staccato.
 
Sorry I can be of more help
Royce
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boyanmw
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Re:  Disabling midi messages from a single se
« Reply #2 on: Mar 19th, 2019, 2:28am »
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Hi, thanks for your answer.
Actually I fixed it.  
And the reason is: sensors are too close; I lifted the circuit board with 1 mm. from the inner side, the distance btw sensors is now increased, no problems anymore; will upload a video at YT soon /I'll post a link here if you are interested/. This is a constructive issue, who can expect...
Edit: About the sensors- I was wrong, they are 3, the first one is off/sus/on; the second is velocity sensing, the third one generates sound. They announced "three sensors  for a key" and I expected a triple sensor system inside like on Casio or Kawai, something advanced and improved. Nothing of the sort. There are three graphite contacts on a single circuit board under the keys.
« Last Edit: Mar 19th, 2019, 2:55am by boyanmw » IP Logged
Breath
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Re:  Disabling midi messages from a single se
« Reply #3 on: Mar 19th, 2019, 9:23pm »
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Hi
Glad you fixed it.
It is not something I have come across before.
I'll look forward to the video
 
All the best
Royce
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