Відео

I don't think I'm following you. I'm not recording any sound. I take the sound from the silent system and than amplify them with the two trancducers. So the hammers get stopped just before the strings with a stop rail and the sound is a digital piano projected on the soundboard. Don''t expect to much from it though. It's not a massive sound. It's just a way to get the volumes between playing softly acoustic and complete silence. Great if you want to practice in the evening but don't like headphones.

@@CoenvanDongen oh! Here is what I thought you were doing: Playing. In real time a computer is recording with microphone. And in real time sending back what you are playing to the transducers, but in inverse wave form - directly to the soundboard. That’s how noise cancelling headphones work. It cancels out the vibration. That’s what I thought you are doing. But now i understand what you are actually doing haha. Much more simple than what i imagined.

@@FlyWithNoam This does sound like a really cool concept to try! Any progress?

You don't need to say sorry to say. I completely agree with you. Downweight does not tell much about the playability. And factorys in general do a pretty good job making good playing instruments. And yes a good balance between the hammerweight and Ratio has the biggest share in a good playing instrument. The point of the experiment was that it is impossible to make two matching grand pianos with a different lead pattern. And also probably impossible to say if one is better than the other. I think there will be a matter of taste involved with this. The experiment did point out that there is a difference between lead in the front and lead in the back. So when calibrating the keys I think the placing of the lead should be as regularly as possible. Putting the lead regularly in the front or in the back would be fine also. As long as it is regularly. The lead pattern method I show is imo a great way to achieve this. I've also seen other good ways. So Yes, placing of the lead, and balance weight is just a little piece of the bigger puzzle. But I think it is great to take every little piece of the puzzle (at least) in consideration when balancing an action.

@ perhaps it’s best to decide where the leads to go, by weighing the entire key? And by making sure the keys from a0 to c8 reduce in over all weight evenly and in a linear way? Have you graphed the key weights after installing your leads? The entire key, on a scale. As a whole, with the back check and capstan etc. I’m just thinking. I don’t know. I don’t have the answer to the leads :) Pianos are very annoying. Nothing too much is good. Nothing too little is good. Always some golden middle zone where things are nice. So max inertia is probably not good. Minimal inertia is not good. The question is simple. Lots of weight near the center or less weight near the end. I would have done the experiment in a more extreme way. Put a huge amount of weight extremely close to the center. I can imagine that with this scenario, any acceleration such as pressing down on the key from the up resting position would have minimal resistance to change. Also the change of direction as the key returns up would be quicker. But the felt under the key in the center will be much more compressed, because the key is so heavy as a whole. And perhaps this compressed felt would give a lazy feeling to the key.

I used black dye with french polish

It's a Bahco scraper

@@CoenvanDongen Thank you!

Hoewel ik het vervelend vind dat je geplaagd wordt door tinnitus, moet ik toegeven dat ik het fijn vind iemand te treffen met hetzelfde probleem. Ik heb sinds een aantal jaar tinnitus klachten en speel piano. Ik wist niet dat een schelle piano en met name geluidsniveau boven 80 dB hieraan bij kan dragen. Mijn piano is erg hard, al van alles geprobeerd. Intoneren, eiermatjes erachter en zelfs het aanpassen van de inrichting. Ik heb nooit het geluid gemeten van mijn vriend, maar zal het zeker eens doen. Ik vind het zo jammer dat het mijn spel beïnvloedt, met name gebruik van pedaal is soms op de gok. Tonen stromen door elkaar heen en worden samen één brei van geluid. Ik baal er stevig van, maar het is wat het is.. Ik heb ook een elektrische staan. Daarbij hoor ik nog minder goed wat ik speel, tenzij ik mijn koptelefoon gebruik. Dan is het de meest gunstige situatie. Maar minder leuk spelen. Tja, het is een beetje zoeken. Wat je oppert klinkt interessant. Zou best het eindresultaat willen weten. Hou je ons op de hoogte? Ik hoop het, dank je wel ☺️

@@FoodieFit Ik maakte een kommentaar op jouw reaktie. Maar die wordt gecensureerd. Nochtans geen websites in vermeld... In ieder geval indien deze video blijft zet ik er het resultaat van mijn volumebegrenzing en intonatie bij (binnen enkele maanden). Herinner mij er regelmatig aan aub ;-)

@@PaPyRene doe ik, dank je wel ☺️

I have a customer who did it with pretty good result. He hung a paper under his grand piano and with crayon he drawed the outlines of the beams. So he had a paper with al the forms of the holes that needed to be filled. He gave them to a company that can cut the isolation precisely. He did 6cm thick polypress and on all sides 2mm extra so it fits firm in the holes.

Thank you very much!

2.5 meters

@@CoenvanDongen WOW

I'm not sure how much time this was but I estimate 3 days of work excluding drying times of steam and glue offcourse.

@@CoenvanDongen thank you so much for replying I'm starting in my country in Latin America I am learning by myself and I wonder if I am charging too little I wish I could know

@@CoenvanDongen I Love you work and I love the professional listen you put into everything

I bought it at Jahn Pianoteile in Germany. I know most piano suppliers have these. I don't know the name.

Nope, That was not necessary. It ws a fairly modern D with no cracks.

@@CoenvanDongenthen why scrape and refinish the soundboard at all, then? Why not leave it alone?

@@pearlshark1 Cosmetic reasons, The original varnish had little cracks. The client wanted to have it look like new so I renewed the varnish.

@@CoenvanDongenthank you for your explanation. During the sanding process, is much spruce material removed from the board?

@@pearlshark1 Just enough to get al the old varnish out.

I agree that it can be an important piece of a restoration. But in this case the pins were tight and they did not show any signs of false beats. They were happy there so I kept them there ;) The filing was just for shiny reasons.

But then.. what is a proper alignment. Is it straight? Knowing action ratio has small changes and ask for different blow distances? Or would you adjust them in the key depth? So many questions haha. But seriously I always set the final blow distance in the piano itself by measuring the aftertouch in the key. I agree an uneven line might confuse some people ;)

Ik vind het moeilijk om daar een uitspraak over te doen. Bij de meeste Kawai dealers zijn deze modellen samen te beluisteren en te vergelijken.

Yes! Those are very difficult blocks to copy because of the double height. Good luck!

@@CoenvanDongen I've seen many, but other techs copied them in two separated layers, like the original, but in America there are multiple choice with block wooden materials and thickness. In Europe we are a little limited. Did you choose delignit? And for caps under brass plates? I appreciate your work of precision, I live in Italy and here there are very few expert technicians. Many turners, but not really "rebuilders"...

Depends on your location. Find a local pianotechnician. He can probably tell you more about the possibilities in your area.

Dank voor de tip! Aangepast.

That is different with every piano and also... The result of the decibels reduction is relative to how much decibels the piano is. 3 dB less from 100dB is much more than 3dB from 99dB. Let's say it will reduce between 10 to 30% of the existing volume.

@@CoenvanDongen thanks! I will give it a try with my new Petrof P125. It goes fairly loud…..

@@jaycee_nl Those are great pianos, but yeah also load. Let me know how it turnes out!

Indeed it makes the Petrof noticable more quiet, but it is still quite loud for my apartment….

All my details are on my website ;)

You'll be fine with a few layers of spray putty and spray cans with antique gold.