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All people here who happen to have an iPad: Please load Midi Monitor and test your keybed. It cannot be that only 5 guys here have these problems with sticky / velocity / cutoff problems.

I think this is just a faulty wrongly designed keybed. Or it´s quality is inadequate for a sound engine with 8 velocity layers.

Please look for keys that have 8% to 20% more note on velocity.
(I also see many release velocity errors if I play staccato [around 5 between values of 40+x].)

Please check your boards and don´t let Korg off the hook.

You don't really have to shut up, I just have no issue with my Kronos 61.

now the 61 keyed of the Krome........that's a different story.

I just used my Kontakt midi monitor

(press spanner on an instrument, select "Script Editor", then under presets, select "Factory/Utilities/midi monitor", and make sure Verbose Mode is set)

Edit: All on velocity curve 9

If I place a book across the octave with G4 on and press very lightly,
the entire octave is either 5 or 6

I press a fraction harder and the entire octave is 8, I repeat this a few times and sometimes G4 is 8, other times it's 16 while all the others are still 8

A bit harder and the whole octave is between 18- 20, G4 is 25

I press a bit harder and the whole octave is 30 - 32 and G4 is 38

Pressing harder, octaves between 55 - 56 but G4 is 66

Harder still 77 - 78 but G4 is 89

Even harder, 82 - 84, G4 is 93

Very hard 96 - 98, G4 is 107

As hard as I dare with the book, 108 - 110, but G4 is 113

bearing in mind its impossible for me to press the book down evenly over the octave, so for example sometimes C4 is going to be louder than C5 and other times the opposite will be true as it will always be pressed down at a slight angle one way or the other. Which accounts for the velocity varying by about 3 each time.

Hi,
Ok, i tested this. My velocities are fine. When i play staccato notes, the note off velocity is always at 64(50%), i guess that's normal. My aftertouch is ok, i can go from 1 to 127 smoothly, goes from 2 to 4 to 6, etc. What exactly are you seeing on your end?

Kronos 73 here, one of the first that came in Canada(ordered it on the first day of NAMM 11). Yes, the ones that are supposed to be the worst keybeds mankind ever produced(read the ones the competition always tried to bash all over the internet to try to make Korg look bad because they(the competition) are using their 90's technology in their current workstations...).

But thnaks, nice little app i wasn't aware of. I'm sorry to hear you have problems(boy, i sound like Dan at Korg )

Blink

You can also use "USB Midi Monitor" for Android, or "Midi Monitor" for Windows to check your generated midi or sysex messages.

My X73 keys are ok. I can produce 127 velocitiy on velocity curve 4, but with a real good hit.

I am sure most of you already know that the RH3 keyboard has progressively lighter 'touché' as you go towards higher notes (I guess there are four weight levels across whole keyboard on a 88 keyboard), therefore, you should not expect to get the same velocity value on every key that you assume you hit with a steady force.

One more thing, if I remember right, velocity works like this: there are two electrical contacts on every key which are activated with each press, one registers the initial movement, the second one registers when the key is down all the way. Velocity is then cleverly calculated using the time difference between these two switches' signals. So, unlike aftertouch, I don't think velocity needs calibrating or can exhibit wild aberrations unless a major mechanical problem affects these switches, in which case velocity measurement will cease to function at all.

Anyway, asking you to shut up is nothing I'd ever tell you.

Mine is also good !
But rubber were changed few weeks ago (cutoff problem with the pink ones) !
It seems another keyboard now !

Cheers

Hi: tried with midi monitor, and mine DO NOT reach 127 even in curve 9.

Mine is Kronos 61... what should I do ? ask Korg to re-calibrate it or ask for a rubber change ?

Wheres the poll entry saying "my keybed is s**t"?

To expand on what Rigel was saying, the keybed does not actually measure pressure at all, it measures velocity.

As he points out, there are two contacts per key. When a key is depresessed, the time taken for the key be fully depressed is measured using these two contacts. It's this value that relates to velocity.

For this reason, calibration should not be necessary (unless there was wild variation in the relative positions of the key contacts). Nor should different rubber contacts or levels of resistance make any difference - these factors may make it harder for you to play with the same velocity, but they shouldn't make any difference to the measured velocity.

There's a few things that can affect a keyboards obtainable velocity range. Firstly, as velocity has a finite minimum and maximum, the designers need to choose what velocity levels these correspond to. 128 velocity levels aren't much, so it may be in the case of the KRONOS that you would have to absolutely smash the keys to obtain a reading of 127. A different designer may choose a more common maximum, at the cost of "clipping" the measured value at a certain point.

It's similar to setting digital recording gain - it may be preferable to set the gain high in order to capture more nuances of the performance, at the cost of an increased risk of clipping, versus setting the gain low and losing some clarity, but being able to capture a wider dynamic range.

The other factor that can affect the dynamic range of the keybed is the timing resolution and scan frequency of the switches, which also being finitie can affect the maximum recordable key velocity.

BobTheDog wrote:Wheres the poll entry saying "my keybed is s**t"?

The pool options were just a jest.
But you are right: Some keybeds are shitty.

I am still waiting for Korg to evaluate if "my problem" counts as a design/production/etc fault. I personally think all the keybeds from the first production run must be faulty.

Saxifraga wrote:

BobTheDog wrote:Wheres the poll entry saying "my keybed is s**t"?

The pool options were just a jest.
But you are right: Some keybeds are shitty.

I am still waiting for Korg to evaluate if "my problem" counts as a design/production/etc fault. I personally think all the keybeds from the first production run must be faulty.

In that case, should I replace key rubbers or full keybed ? moreover, guessing I'm buying a new kronos X keybed (to be sure), am I able to calibrate keyboard by my own ?