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Sunbo - it sounds like a physical vibration, possibly from a loose screw or something that is not secured responding to that particular frequency. If anyone comes out to check your piano, that's the first thing I would suggest checking (tighten all screws for example) and make sure nothing is on or near the piano that could vibrate to create that sound (lightbulbs are the worst!)

The easiest way to diagnose that theory is to see if you can duplicate the sound with headphones.

Great advice!

Try it with headphones Sunbo and let us know if you still hear the vibration/hiss.

God Bless,
David

I agree that might be physical vibration from the upper middle speaker. But it is inside the cabinet. Outside is all clear. When use headphones, it is fine. So it is not from the sample. I call the local technician second time today. He seems take the job, but he need to figure out what is going on first before come.

The guy from the dealership said he talked to Yamaha guy. He suggested that do the system reboot and check the firmware. I tried several times to reboot but failed. The firmware shows “b”. I don’t know what is that mean. Also I didn’t find N1X firmware on Yamaha website.

Just in case somebody interested how to reboot, I just copy his email here. I didn’t get through, the display shows nothing. And if you hold the 3 keys too long, the method will mute the 3 keys. Turn off and on the piano will solve this. This is the email:

“I spoke to my Yamaha digital piano specialist, and he suggested trying a master reboot of your N1X. Here's how to do that:

master reset
test mode
Turn off the N1X
Press and hold c#2, F2, and G#2 keys at the same time, then turn on the N1X
"TST" should appear in the control panel
use + and - buttons to go through different test modes
go to 2nd to last test mode, "T43"
press arrow/pause button, "PRS" should appear on LED; press arrow/pause again
clears anything in memory in piano
will reset piano to factory settings

Give that a try and let me know if that helps to clear out the hiss.”

This is how I did it. But no “TST” on screen.




Both guys from the local and dealership arguing with me this is software problem. I think they just want to eliminate the possibility of the software problem, then will sent people here.

Are you pressing the correct keys? It does not look like c#2 or g#2... It looks like you are pressing c2, f2, g2.

Thank you. I will find the right keys and try this again tomorrow. I actually don’t know the notes and keys at all.

Just tried again, it is the same thing, nothing shows on screen. If you hold the 3 keys long enough, they got muted. Update the clip here:

https://youtube.com/shorts/JM5ygJTEX0s?feature=share

Some companies call middle C as c3 and some as c4. If yamaha uses c3, then you are pressing the wrong keys. Try again one octave higher (or read the n1x manual... Never hurts).

C4 is the most common notation for the middle C. It is the Scientific pitch notation (or SPN, also known as American standard pitch notation (ASPN) and international pitch notation (IPN)). (According to Wikipedia).

But the Yamaha manual uses C3. UVI Workstation uses it too.

Looked up user manual, found the right keys and entered teat mode successfully, eventually the display shows “T.4.3.” Then all keys are muted. It doesn’t help the hiss noise issue. Don’t know what does that mean. Just emailed to the guy asked me to try this.

https://youtube.com/shorts/ybYkf7N9Tck?feature=share

Sunbo - you don't need to reboot or recalibrate anything. It's clearly not a software issue, it's a mechanical issue. You can stop trying to fix it and let the tech take care of it when they come out to tighten something and fix the mechanical vibration.

@Jeff Bauer: I think you're right. But once a thread goes off on a tangent it flies into outer space ... only returning to earth when sage advice (like yours) is offered and accepted.

We'll soon see ...

Jeff, you are right. I know this from very beginning. It seems a typical procedure to eliminate the software issue possibility before they send technician. I just did this to ask them send people ASAP.

The guy from local Yamaha service shop called me said he ordered a mainboard from Yamaha. He doesn’t think this is the problem from the upper middle speaker, because this syndrome is not in the service handbook. The motherboard is on back order, it will arrive in 4-6 weeks according to him.

The dealership guy said he passed the case to Yamaha, the service will contact me soon. Hope somebody will come here to diagnose before they “test” to replace the motherboard. Since nowadays product are designed and produced as modular, technician seems more good at “replace the components” than “fix” and “calibration”.

BTW, I ordered the piano a month ago from a dealer had it in stock at that time. It took almost a month for Pilot Freight(it gets horrible reviews on Google) ship it from PA to MI. I found the issue second day after I received it. Other than waiting for repairs, what else I can do? I mean if this is a portable digital piano, I will return it as a defective item right away, won’t do these hassles.

Sunbo,

You're doing the right thing. You have to let the dealer/technician sort it out. It's under warranty. It's a hassle and hopefully it will be resolved quickly.

Personally, if I were in your situation and the technician could not come out immediately (within a week) and fix it, I'd have no problem opening the N1X up to try and figure out what is vibrating. It's very simple to take the top off. I'm not suggesting you do that. It's probably better for you to wait. I'm just weird and despise paying people to do things I can do myself, or in your case, waiting for someone to do something that I might be able to do.

Keep us updated and let's hope for a timely resolution.

God Bless,
David

As @David and @Jeff said.

Sorry if I wasn't following the thread correctly: @Sunbo, you can still play with headphones on correct, with absolutely no problems? Or did the test mode pretty much render the instrument mute?

@David, thank you for all the supports. I actually like to fix things but just feel uncomfortable to do any fix on a brand new piano after paying a couple of thousand.

If this is falling board noise issue, I think I will just do it myself won’t bother anybody. And just post here for record.

Before buying, except the falling board issue I knew that some of the keys weight probably 5-10grams different, one of guy’s had several keys out of tune, when the piano is on there is a subtle background noise. Since there are only around 40-50 N1Xs here, I won’t call it rare that this piano model gets problems.

@mmathew, there no hiss noise when use headphones. Once it enters test mode, the display shows” tst” all the keys are muted temporarily. After turn off and turn off the piano, it is back to normal.

Since I just figured out the keys, just clarify the issue here again: hiss noise(like broken string or loose vibration) from upper middle speaker when hit some keys hard.
On Sound “1” CFX : Key D2 (hiss is very subtle), A4.
On sound “8” Vintage E. Piano: key G0, D1, D2, A4.
No noise on headphone. The hiss is more obvious on sound ”8” than”1”.

The noise actually doesn’t bother us right now, since the kids just started to learn the notes. It just annoyed that get a high priced defective stuff, and it seems will take more than a month to fix it.

Hi guys can anyone help?

Running VSL Yamaha CFX VST through Reason Intro 10, and my sost. & soft pedal are not registering from the N1X! Why would this be?

I’ve searched the web to no avail! Both pedals are registering inputs in Reason but the VSL plugin doesn’t register. I can’t record with anything but the sustain pedal.

Try the free Pianoteq demo instead of VSL CFX. It has a MIDI event viewer. (Options button, then MIDI tab).

Then you will see if Reason filter or alter anything.

Okay Frederic,

I have it installed and running in Reason, but the two pedals will not show on the midi event viewer. Mapped to controller 66 for sostenuto and 67 for soft. I’m so confused! It’s got to be a simple switch or setting but I can’t find it.

The MIDI event viewer of Pianoteq shows what Pianoteq received... understood (mapped to a Pianoteq function) or not. If pressing a pedal doesn’t display anything, I would guess there is a filter in Reason. I have not this software, then it would be difficult for me to help, but the issue is on the Reason side.

Frederic,

Even in just the piano teq trial software outside of Reason it will not register…

Also I just calibrated my velocity curve and I got a notification afterwards that my piano does not send note off velocities therefore it couldn’t add those. I thought the N1X had note off sensors?