sound dies while holding a chord

Shutoku · Post by **Shutoku** » Tue May 13, 2014 6:15 pm

So while I'm over all quite happy with my Kross, on about three occasions over the 2 1/2 weeks since I got it, I have been holding a chord and all at once the sound dies with the keys still depressed.
This is on normally sustained sounds like organ or strings. Polyphony is not the issue since it on at least one of these occasions was the only thing being played.
I'm not sure if it has happened in program mode, but it definitely has in combi mode and now that I think about it, a few times in sequencer mode.

It's pretty random though. Just wondered if others have experienced this. If so I assume it is a software glitch and perhaps will be fixed with an update at some point.

tommymandel · Post by **tommymandel** » Wed May 14, 2014 2:26 pm

I haven't seen that kind of behavior on my Kross. Sounds like an all notes off MIDI message may be being received. Or the sustain pedal may be plugged in to the wrong socket on the back, or set to the wrong polarity in Global, but I think, once again, that I'm not being extremely helpful here, other than to let you know that your post was seen! If there's an unintended midi loop, your Kross may be trying to play double the number of notes that you think it is.

Shutoku · Post by **Shutoku** » Wed May 14, 2014 8:24 pm

Yeah I'm afraid it is none of those. It is most definitely a random glitch.
The only question would be is the source software or the less than fantastic keyboard, but I suspect software.
So far it hasn't been a massive issue, just an occasional annoyance.

iluvchiclets · Post by **iluvchiclets** » Sat May 17, 2014 11:38 am

I was just thinking about this problem.

Someone might have a better understanding about this, but when Korg programs a sound I would assume they are using the standard ASDR parameters. And, when Korg programs an infinite sustain sound, (such as organ, strings) I would assume they would manipulate these ASDR parameters so that Sustain or Decay are at maximum.

Could it be that spidergoalie held the keys of a chord long enough that the maximum sustain time (before the Release parameter) was met, and they notes die off? I would assume there would be a limit to how long a note could be held?

iluvchiclets · Post by **iluvchiclets** » Sat May 17, 2014 11:42 am

(double post)

Shutoku · Post by **Shutoku** » Sun May 18, 2014 9:39 am

Well the only other thing is, I don't necessarily have to hold the chord for a super long time.
I'll give a very specific example.

Here is the original version of a song I was playing.
https://www.youtube.com/watch?v=43jSmHkw-QU

If you go to 2:46 the pipe organ holds a Gm chord while a minimoog does a big portamento glide.
I am holding the pipe organ chord on the Kross with my left hand, playing the minimoog part on my mono/poly with my right hand.
The Kross dropped the chord before I got to the top of the portamento glide, so probably a dotted half note or so in length.

What I'm not sure about is if it is really only sustained sounds, or just more obvious on them, and also I don't know if it is just the oscillators shutting down, or if the reverb also shuts down...as if changing combi's mid chord type of thing.

I did it again tonight on a brass sound, but I'm putting combi's together so it was still usb'd to my mac with the editor on, so it doesn't add any new information to the mystery. I really have to play for a few hours without being wired to the mac and see if that makes a difference.[/url]

Shutoku · Post by **Shutoku** » Mon May 19, 2014 10:25 pm

I think the usb connection may be the culprit.
Last night I played for a couple hours without the usb and did not have even one incident of a chord dropping.
Later working on a combi it did drop on a brass patch. I'm not 100% certain this is the source, but it is definitely looking like it.

tommymandel · Post by **tommymandel** » Tue May 20, 2014 2:50 am

that would make sense: If you play the same note on the mono/poly that you are holding on the Kross, the moment that you let go of that note on the mono/poly, the Kross will get a "note off" event for the same note.

-0- but only if the USB connection is somehow redirecting the MIDI out signal from your Mono/Poly to the MIDI input of the Kross.

Shutoku · Post by **Shutoku** » Mon Jul 21, 2014 3:00 am

My mono/poly is pre-midi (I got it around 1979 or 1980..somewhere around there) and I never got around to getting a retrofit kit.

Anyway with a bit more time I think the problemwas not just from the usb, but it was actually plugged into a sort of multi usb adaptor thing.
I moved things around in my studio a couple weeks back and now plug the usb into my mac keyboard, and have had zero drop out problems.