SGX-2 and odd sustain pedal behavior

jsarlo · Post by **jsarlo** » Sun Feb 21, 2016 4:03 am

This seems like a bug:

0) Select a program that uses SGX-2 engine
1) Depress sustain pedal
2) Play any note with a relatively high velocity
3) Play same note with significantly less velocity, but keep key depressed
4) While continuing to hold down key, release sustain pedal

The amplitude drops to the level of the second key strike.

I would expect no change in the amplitude for the note played so long as the key remains depressed when the sustain pedal is released (other than dampening of the sympathetic resonance.)

Does everyone's Kronos do this??

//
Kronos 73-key -- v3.0.4

voip · Post by **voip** » Sun Feb 21, 2016 10:58 am

At first sight, this made perfect sense, and has matched my expectations of the sustain behaviour of many synth type sounds, but it is not how a proper piano would behave so, yes, a bug it is, then.

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jsarlo · Post by **jsarlo** » Sun Feb 21, 2016 5:09 pm

Do you know if Korg has a bug reporting system?

voip · Post by **voip** » Sun Feb 21, 2016 6:25 pm

I'm not aware of a specific ticketing-type bug-reporting system at Korg, but they do encourage contact. Here's a statement from their website:

"We are always happy to hear from our customers and encourage feedback from anyone with comments on us, our products or what we do or don't do."

US:
http://www.korg.com/us/support/contact/

UK:
http://www.korg.com/uk/support/contact/

Please mention here if you have successfully contacted Korg.

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DeltaJockey · Post by **DeltaJockey** » Mon Feb 22, 2016 6:05 am

I've tried to replicate this, and I think I've followed your steps, but can't seem to get it to happen...however, I've experienced something similar with some of the Kapro symphonic programs. Particularly you mention the striking at high velocity, then having low level notes happen at similarly high velocities. I had wondered in my example if it is related to the aftertouch calibration. For me the problem is reset when selecting another program and going back to the first. I don't think the aftertouch function is enabled on the SGX2 pianos, so maybe not the same problem, but just a thought.
The aftertouch is used in the programs I have noticed this effect happens with, and the velocities of all the notes are lower fro some time until I reset the program.

Chris

voxg · Post by **voxg** » Mon Feb 22, 2016 3:59 pm

I was able to replicate this unexpected behavior, and opened a support case with Korg. I'll post back to this thread if anything interesting comes of it.

Thoraldus · Post by **Thoraldus** » Mon Feb 22, 2016 4:17 pm

I was also able to replicate this issue on my K2 Ver 3.0.4

Thoraldus · Post by **Thoraldus** » Mon Feb 22, 2016 4:37 pm

Information passed on to Eric at KORG.

jsarlo · Post by **jsarlo** » Wed Feb 24, 2016 5:11 am

I submitted the issue to Korg US support. Hopefully I'll hear back.