Diki,

you make some interesting points

i THOUGHT this was a software thing,
and just as you can split the arranger, LH, RH,
i would think you can split the zone for aftertouch , on arrangers at least.

didn't know it was hardware, ribbon related, etc..
so it's ALL or nothing from what you say
but will still try it on my G-70

so i guess things can't always be as WE want them

thanks for clearing things up

But...aftertouch can be turned on or off for each part...so...that should not be a problem...

[This message has been edited by Fran Carango (edited 09-09-2010).]

With Yamaha keyboards, you have an option of turning on or off the left, right1 and right2 and on some models, touch sensitivity for the style. I cannot remember which ones had the style sensitivity setting, though.

I would think someone that is very knowledgeable with Ketron products would have this information at their fingertips.

Good Luck,

Gary

Diki,
Excellent post/answer!

No, Fran... if you actually WANT the aftertouch possibilities for your RH (you want to impart vibrato with pressure from the RH) you can't stop the pressure in the LH from triggering it. All you can do is turn down the sensitivity until it takes more force than your LH is imparting to activate the effects. I usually set any aftertouch I use to it's lowest setting, so that this problem is unnoticeable as much as possible.

Lee, I imagine that setting your Velocity sensitivity fairly low (so that you don't NEED a lot of force in your LH to trigger what you want) on your LH sounds will help you to avoid this problem, along with setting the aftertouch sensitivity as low as possible (so you need a fair bit of force to activate it) will keep this problem from being too noticeable. Plus, as others have suggested, turning OFF the aftertouch reception for Parts you don't actually want it on.

If I were you, I'd spend a fair bit of time with the manual investigating how to control and scale both aftertouch and velocity (and, as you have the module version - correct? - the aftertouch and velocity capabilities of your controllers as well) before you get too worried about things...

Agreed, that's how AT works on Tyros too. Lean too hard on the left hand for too long and it can trigger AT across the whole keyboard.
On Tyros it doesn't make any difference to the issue if you have AT disabled to the left. The right voice AT's will still be triggered by the sensor (if they are enabled.)
[Could disable them temporarily if you wish and try "overplaying" the left hand again just to prove the point.]

john

Originally posted on the Ketron forum in answer to the question.

After Touch is normally monophonic, (A single pressure bar covers all the keys) thus pressing another key harder will affect any voice that is using pressure control. (Vibrato etc)

Very few keyboards of any description are polyphonic due to the mechanical complexity of reliably implementing it.

Before anybody mentions that dynamics of a keyboard are polyphonic, dynamics is easier to control, as it is calculated by how fast any key goes from off to on. (It’s not a constant like pressure)

Bill

I just tested my Yammie PSR S710 in the manner you suggested. No problem! This is interesting as it uses much of the same technology as the TYROS 2, and I can't get it to duplicate the sound problem you describe.

I just put my Yamaha PSR S710 through the routine you suggested, and there were no problems.

This is curious as much of the technology in the S710 is identical to the TYROS 2, and you said that it had the same problem.

Your PsrS710 does not have aftertouch! Neither does the S910.
That's why you can not duplicate the same effect.

[This message has been edited by hitman (edited 09-10-2010).]