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More than 127 levels internally can be useful. The timer to MIDI level function is not a linear function, then we can have some precision lost depending of the slope.
The higher the MIDI level, the higher the timer resolution will have to be if we want a given relative precision. (If MIDI levels are the logarithm of the time or something related, the relative precision can be the important parameter).
http://www.sinerj.org/ http://humeur-synthe.sinerj.org/ Yamaha N1X, Bechstein Digital Grand, Garritan CFX, Ivory II pianos, Galaxy pianos, EWQL Pianos, Native-Instrument The Definitive Piano Collection, Soniccouture Hammersmith, Truekeys, Pianoteq
I'm not sure I have the aptitude to do something like this. I definitely don't have the desire. Bravo for seeing it through. Your hard work and dedication to this project is inspiring.
I wasn’t clear. I use the highest possible internal precision. But I translate that to regular MIDI and don’t see any reason whatsoever to use high-res MIDI.
Originally Posted by Frédéric L
About the video, thanks a lot !!
How do the sensors measure a velocity ? Two sensors per hammer (and an other to switch the note off), or a single sensor which measure multiple values (and we start a timer at an analog value and stop it at an other).
On the top of the sensors, I see 5 weldings. A common (ground), two led emitters and two light sensors ? I am right ? I suppose the timers have to be adjusted to the geometry (it is hard two have two notes with the sensors at the same distance precisely... and even more near the fulcrum of the hammer where the precision matters).
I use CNY70, it’s a 4-connector device (a LED and a phototransistor). The fifth thing is a SMD resistor.
So, I measure multiple values with the same sensor. I set them through trim pots. This may seem like too difficult but it isn’t actually. One point is hammers at the stop rail. I have a software service routine that would turn on the LED when the distance is reached. So I hold the hammer at rail and turn the trimpot until the LED is turned on. I use spacers for the other distances. After that it’s pretty good and will need just a touch up. I’ve already worked out a routine for setting the two points very precisely. It’s a manual labor and needs aural “tuning” (like comparing how bright the sound becomes of two adjacent keys through trills or fast triple repetitions, etc) but heck, that’s how it works and why it’s so cheap It certainly needs some skills and getting used to but is IMO much easier than, say, a real aural tuning of an acoustic piano.
I'm not sure I have the aptitude to do something like this. I definitely don't have the desire. Bravo for seeing it through. Your hard work and dedication to this project is inspiring.
Indeed, I'm impressed the project was completed at all, especially after acquiring the N1X... that ought to have been the death knell.
Amazing dedication!
Btw, maybe it's just me, but CG's pinky seems to bend the wrong way in that video. At least as a beginner, my teacher always says to keep the fingers curved inwards and fairly stiff, and not be allowed to flex outwards.
Btw, maybe it's just me, but CG's pinky seems to bend the wrong way in that video. At least as a beginner, my teacher always says to keep the fingers curved inwards and fairly stiff, and not be allowed to flex outwards.
Great playing, as usual.
Yes, this is an old bad habit. The risks of self-education 😟 My mother in law (a piano teacher) thinks it’s too late to try to fix it now and that attempting it can even affect my playing in a bad way.
Yes, this is an old bad habit. The risks of self-education 😟 My mother in law (a piano teacher) thinks it’s too late to try to fix it now and that attempting it can even affect my playing in a bad way.
Yes, this is an old bad habit. The risks of self-education 😟 My mother in law (a piano teacher) thinks it’s too late to try to fix it now and that attempting it can even affect my playing in a bad way.
Quite true 😌 Seems like I may just share the designs and the code for free.
or you can find a partnership with a brand, for example kawai mass produces the grand actions, and you sell the kits to us with all the instructions on how assemble them.
Kawai will not want to do this, they have AnyTime technology, if they were interested in selling a controller with real action, they would not need anyone's help. By the way, Petrof used to sell a grand piano action MIDI controller.
I have the triple pedal unit from my ES7 (with more realistic hard springs) that I will integrate when I also make a cabinet.
For some reason I’m so exhausted after proving to myself I could do the hardest job, I kind of lost interest in finalizing it (cabinet, etc) and so it might be another two years but at least it’s a perfectly playable piano right now, albeit with only 85 keys and a very soft (but continuous) sustain pedal 😁
It has its quirks though. If I switch off the main supply first (and keep the Teensy, i.e. the main controller that sends MIDI, switched on to the computer through the USB cable and since it’s powered through the USB) it would make a sudden screech of death: it will play all the 85 keys at once with a value of 127 to scare the sh*t out of you 😱
Can we agree on the fact that building the ‘Cybrid’ was not an easy/cheap task? If so, should we re-examine the long-standing belief that Yamaha and Kawai hybrids are ‘overpriced’?
Can we agree on the fact that building the ‘Cybrid’ was not an easy/cheap task? If so, should we re-examine the long-standing belief that Yamaha and Kawai hybrids are ‘overpriced’?
Can't speak to easy, but didn't CyberGene say the action cost $1000 and all of the other parts to make it work cost $50?
Of course, it's not a polished production product and BOM alone doesn't account for the cost/time he put into it, but for someone who really wants an acoustic action, and can source the action, this might be a real cost-effective option if they're willing to get their hands dirty.
Have you heard a piece called Naima by John Coltrane? Well, OK. But I'd bet you don't know CoroNaima 😛
Testing the dynamics of the Cybrid on a rainy day after Bulgarian gov declared a state of emergency with people having to stay at their homes. (Not that I used not to stay at home all the time anyway 🤣)
Have you heard a piece called Naima by John Coltrane? Well, OK. But I'd bet you don't know CoroNaima 😛
Testing the dynamics of the Cybrid on a rainy day after Bulgarian gov declared a state of emergency with people having to stay at their homes. (Not that I used not to stay at home all the time anyway 🤣)
the sound of those bass notes was really THICK, pro quality.
It certainly needs some skills and getting used to but is IMO much easier than, say, a real aural tuning of an acoustic piano. 
