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Hello, on my Novus 5 the volume from the "Damper-Noise" is very different.
According to the manual, the volume should depend on the speed with which the pedal is pressed. That would make sense, but with my Novus the volume varies (at constant pedaling speed) from not audible to loud.
A technician who was there on behalf of Kawai told me that the manual is wrong on that point and that the volume is determined by a random generator. I find this very, very hard to believe. So "Damper-Noise" is completely unusable.
Of course, I can turn the noise off completely, but that's not the point. It was not like that with my other electric pianos (also from Kawai). How is this with your pianos?

I recorded this behavior with the internal recorder on a USB stick. I alternately struck a note and then pressed the damper pedal. The volume of the damper noise was set to max. so that you can hear it better. What is important is the big difference in volume. Sometimes the noise is much louder.


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It should definitely not be random, that’s nonsense. Just tried with my NV10 and it is not random. But: The difference in pedal speed between (almost) no noise and loud noise is a small window. And there‘s not much room for „medium“ noise. So it’s not like slow gives no noise, slightly faster gives a little noise, medium fast gives medium noise, faster yet gives even more noise and maximum speed gives loud noise. It’s more like slow to medium all gives (almost) no noise, a bit faster gives a little noise, even faster up to maximum gives full noise.


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I'll wait for experts here to weigh in about the damper noise, but dear Lord, that tone is so warm and absolutely wonderful!


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On my NV5 there is no random volume on damper noise. It gets louder depending how fast i'm pressing the pedal.


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I would monitor the MIDI commands sent when pressing the pedal at different speeds. I would think there will be random jumps between values and that would explain the noted behaviour. If so, the damper pedal could be faulty


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Thanks for your assessments. I tried to view the midi signals. For this I used Bome`s midi translater. When I pressed the pedal slowly, the values 0F to 7F changed. I did not notice anything special. Whether there were outliers I could not recognize, for that it went too fast. Maybe it works better with another program?



During the test, I noticed that the damper noise is sometimes particularly loud when pedaling slowly. You can see it well on the following short video. This time I made the recording with the cell phone. The volume on the Kawai was about 60% and the setting for Damper-Noise on maximum. By the way, you can hear quite well how loud the mechanical noises are when stepping on the pedal, is that normal?


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Definitely not normal!!

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It seems there is too much tension on the damper mechanism. The creaking noise is definitely not normal and should be reviewed by a technician. I had a similar issue on the NV10 before. If the mechanism isn't properly regulated, it causes a weird behavior because the distance between triggering/not triggering the sustain switch is smaller. The NV10 was awkward to play because of this until i fixed it by myself.


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No, that doesn’t seem normal. I would require a technician to look at that, and without any nonsense about this noise happening randomly.


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Welcome to the club. That drove me insane. It was so distracting I would just rather turn it compeltely off. The most annoying thing is that it still randomly gets played even when set to off. Setting the line-in volume to -10 db (the lowest) further reduces it getting played. But I don't seem to be able to completely disable it.

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I think Tyr is right and it is a mechanical problem: if the pedal does not move evenly, but jumps or jolts a tiniy bit when pedaling slowly, for short moments it will move temporarily faster than it actually should. The sensors should then interpret such a small jerk as a fast pedaling and then cause loud electronic damper noise ...

I would therefore assume that a little lubrication in the right place and/or a better setting of the spring tension will lead to an even pedal movement and the annoying malfunction of the damper noise can then no longer occur.

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manbutexi, I don't believe this is normal.

Please seek assistance from your dealer and/or Kawai Europe.

Kind regards,
James
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I have already reported the problem to Kawai. The technician who came fixed a (different) error and greased the linkage of the damper pedal in two places.
On the second visit, the spring of the pedal was replaced with a weaker one (from NV10). The DamperNoise problem (which was not there on the first visit) was heard by the technician and passed on to Kawai.
On the third visit, another technician was with me. He didn't change anything, but promised to talk to Kawai about the problems and then get back to me. But that was already two weeks ago.

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So in the begining there was no damper noise problem, the problem was introduced by the replacement with a weaker pedal spring, right? Sounds reasonable, cause too less tension could expose a small but uneven friction in the pedal mechanics, which in the beginning was compensated by a stronger spring...

Last edited by Kammerklang; 03/10/21 09:39 AM.
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Unfortunately the quality of latest Kawai pianos seems to be hit or miss...


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I'm glad my NV5 is working flawlessly. (except the small regulation issue on the action which was fixed) wink

Last edited by Tyr; 03/10/21 12:11 PM.

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Originally Posted by CyberGene
Unfortunately the quality of latest Kawai pianos seems to be hit or miss...

Yes. So far I have not had any build quality, sound or key action issues. The only issues I had were all related to software. I thought I could live with the workarounds. But even those workarounds don't seem to workaround consistently. For example the unit behaves differently when manually turning power off, and when it automatically powers off.

I have opened negotiation with my local dealer on their trade up program. They're being kind and trying to persuade me to give it some more time and also with hopes of a firmware upgrade. Since the unit is outside the returns window, I am not able to return it. But they've put me on the waitlist for either the CLP-745 or CVP-805 - topic for another thread - I'm just a little disappointed and demotivated to write my story.

I guess I've had enough. For simplicity sake, let's assume it's me, not Kawai. This is me, eating humble pie.

Apologies, OP, for hijacking your thread.


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I do not believe that there is a connection to the replaced spring, because the Dampernoise error already occurred before the exchange.
The spring was replaced because I had complained about the very stiff pedal (it took more than 5 kg force to press down the pedal) and because there was hope that the mechanical noise would be reduced. After the replacement just under 5 kg force is needed to press down the pedal, but that is still almost twice as much as for the other two pedals. However, the technician has a feeling that this is normal.

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Originally Posted by manbutexi
...The DamperNoise problem (which was not there on the first visit...
Originally Posted by manbutexi
...On the second visit, the spring of the pedal was replaced...
Originally Posted by manbutexi
...the Dampernoise error already occurred before the exchange...

??? So then the Dampernoise error was introduced at the first visit by "The technician who came fixed a (different) error and greased the linkage of the damper pedal in two places. " ???

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He probably meant that although the issue was there before the first technician’s visit, it couldn’t be reproduced by the technician, supposedly because it’s an intermittent issue. At least that’s how I got it. Maybe it’s possible that the first technician somehow created the problem?

Last edited by CyberGene; 03/11/21 08:07 AM.

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