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Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956127 03/10/20 02:45 PM
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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).


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Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956138 03/10/20 04:09 PM
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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.

God Bless,
David


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Re: CyberGene's DIY hybrid MIDI controller is finally here!
Frédéric L #2956151 03/10/20 05:07 PM
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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 smile It certainly needs some skills and getting used to but is IMO much easier than, say, a real aural tuning of an acoustic piano.

Last edited by CyberGene; 03/10/20 05:10 PM.

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Re: CyberGene's DIY hybrid MIDI controller is finally here!
David B #2956212 03/11/20 12:19 AM
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Originally Posted by David B
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.

Great playing, as usual.

Re: CyberGene's DIY hybrid MIDI controller is finally here!
navindra #2956230 03/11/20 02:10 AM
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Originally Posted by navindra
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.

Last edited by CyberGene; 03/11/20 02:12 AM.

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Currently: Yamaha N1X, DIY hybrid controller -> Garritan CFX
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Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956250 03/11/20 03:55 AM
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Originally Posted by CyberGene
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.

Your playing sounds great, so it doesn't matter.

Re: CyberGene's DIY hybrid MIDI controller is finally here!
johnstaf #2956255 03/11/20 04:25 AM
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Originally Posted by johnstaf
Originally Posted by CyberGene
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.

Your playing sounds great, so it doesn't matter.

Thanks, John! 👍🏻


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Currently: Yamaha N1X, DIY hybrid controller -> Garritan CFX
Previously: NU1X, ES7, MP6, CA63, RD-700SX, CDP-100, FP-5, P90, SP-200
Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956257 03/11/20 04:35 AM
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Good job. Really good job. Whats the price and where do I order? crazy

Re: CyberGene's DIY hybrid MIDI controller is finally here!
spanishbuddha #2956388 03/11/20 01:09 PM
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Originally Posted by spanishbuddha
Good job. Really good job. Whats the price and where do I order? crazy


I'd suspect that being a software developer probably pays better than hand building digital pianos to order laugh


Now learning: Chopin C# minor Nocturne (posth), Mozart Sonata in C K. 545, R. Schumann Fantasy Dance, Joplin The Chrysanthemum
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Re: CyberGene's DIY hybrid MIDI controller is finally here!
Chrispy #2956397 03/11/20 01:27 PM
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Originally Posted by Chrispy
Originally Posted by spanishbuddha
Good job. Really good job. Whats the price and where do I order? crazy


I'd suspect that being a software developer probably pays better than hand building digital pianos to order laugh

Quite true 😌 Seems like I may just share the designs and the code for free.


My YouTube, My Soundcloud
Currently: Yamaha N1X, DIY hybrid controller -> Garritan CFX
Previously: NU1X, ES7, MP6, CA63, RD-700SX, CDP-100, FP-5, P90, SP-200
Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956456 03/11/20 04:10 PM
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Originally Posted by CyberGene

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.

Re: CyberGene's DIY hybrid MIDI controller is finally here!
pold #2956467 03/11/20 04:33 PM
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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.


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Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956474 03/11/20 04:57 PM
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So now, is there anything missing that you want to build in? Soft/sostenuto support? BT Midi for built in page turner? Case and music desk?

Are you going to break out a polyester spraying station or epoxy resin studio?


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Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956477 03/11/20 05:05 PM
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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 😱

Last edited by CyberGene; 03/11/20 05:07 PM.

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Previously: NU1X, ES7, MP6, CA63, RD-700SX, CDP-100, FP-5, P90, SP-200
Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956490 03/11/20 06:01 PM
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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’?

Re: CyberGene's DIY hybrid MIDI controller is finally here!
Pete14 #2956503 03/11/20 07:16 PM
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Originally Posted by Pete14
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.


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Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956510 03/11/20 07:49 PM
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So the belief stands: Yamaha and Kawai hybrids, overpriced! wink

Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2956519 03/11/20 08:51 PM
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Originally Posted by CyberGene
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)


Looks like the 80/20 rule is kicking in. Take a little break then make that final push.

Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2957187 03/14/20 06:23 PM
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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 🤣)


My YouTube, My Soundcloud
Currently: Yamaha N1X, DIY hybrid controller -> Garritan CFX
Previously: NU1X, ES7, MP6, CA63, RD-700SX, CDP-100, FP-5, P90, SP-200
Re: CyberGene's DIY hybrid MIDI controller is finally here!
CyberGene #2957205 03/14/20 07:38 PM
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Originally Posted by CyberGene
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.

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