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The soundboard is about 4x as thick as a harpsichord soundboard. You might be able to buy a spruce piece for making guitar tops. You might try forgoing the nuts altogether and go directly from the pins to bridges. That's the way English virginals work and so they are much louder than you'd expect from a small instrument. Thoreau was an idiot? Was that serious?

What I would love to see is a frequency response from your setup without any piezo disc in line. Output of your buffer directly connected to the input of the other buffer. That would show the "quality" of your measure devices. Otherwise thanks for your work! Kind regards, keep making sounds.

Jones Matthew Jackson Jason Lopez Sharon

Great video. As Gloria Gaynor said, I will subscribe! Id like to make one but quite a bit bigger. Possibly out of metal. Do you know how one might plan out the resonant frequency ahead of time?

love it!

D and I watched just now with great pleasure. It is wonderful to see you again, old friend. And of course it also warms the cockles to see you take your crackpottery to the Nth power. You are a truly unique soul. We must hang out!

This project is outstanding! Also, the transition thing killed me.

Is the robot also a part of your feedback loop or are you a part of the robot's feedback loop? :)

Another brilliant evolution on your (can’t recall how to spell it) harp! I experiment with instrument making myself and your work is super inspiring and interesting to me. Thanks for sharing!

I enjoy you delving into the more philosophical/conceptual things, alongside the technical aspects.

This clearly a robot! Great content and what perseverance to get it to this stage! Great work!

Wow, that is amazing. I loved the collab at the end; Mini-Mike nailed it BTW.👍 So... what happens if the harp listens to... itself? Does anything interesting happen? Or maybe if it listens to a processed sound of itself that you can control and even add to?

The random triads remind me of a Brian Eno composition. Great project M I'm looking forward to your next upload.

pls spanish... for Peru xD

I forgot to say please buy some contact mics from me I am broke! Subscribe to my other channel @metalmarshmallowllc to find out how I accidentally dyed my hands blue

You answered some questions that would have cost some money in trials.. thanks

👏🏻👏🏻👏🏻👏🏻👏🏻

Great stuff man. This has been a dream project of mine for some time. Just started to sketch designs myself, so glad to see I'm not the only crazy one out there. I assume you've seen Look Mum No Computers videos on his Pipe organ rescue?

A better question could be "how do we maximise sound quality when using a contact mic?".

Whenever the crew of the Starship Enterprise landed on a mysterious planet , someone had preceeded them and hidden an aeolian harp behind a nearby rock. Strangely, the crew never commented on this

How can i build a robot like it? Could you share the project, please?

It should be possible to get much better, actually understandable results-witness phoneme synths from the 1970s! I'd have to dig into your methods to make any real suggestions tho... One obvious one might be a richer excitation waveform.

Surprising that app still works on such an ancient iTouch!

So you're using the spectrum of your allophones to filter the raw wavetable?

You put tape between the two piezo elements, which would affect the sound. I'm actually not sure how to attach them together without affecting the sound to some degree. There would be muffling even if they were taped only on the outside. Then there's whatever effects the mounting, the container, the AD and DA converters introduce. Finally, to make generalizations about _all_ piezo discs, you'd need to have a much bigger sample size than just two discs.

Excellent work, my friend! I'm sure you've heard of Paul Vo who developed Electromagnetic Sustainer products for Moog. His newer efforts are of interest as they use microprocessors to tune the driving frequency so as to resonate at target harmonics on a given analog oscillator. ruclips.net/video/4uDC9Xov44U/видео.html I've given thought to installing an output coil on a Vibraphone Bar and Tibetan Singing Bowls. You're clearly well developed in your experiments. Well done!

And they say the aztec death whistle is the scariest instrument

I use piezos a lot. They are great for a lot of creative applications but obviously no substitute for a microphone going through a preamp.

Beautiful! Maybe there is hope yet for the 8 string guitar I foolishly bought that I never play because it hurts my hand (and brain) to do so. Just curious, have you thought of, or is it even possible, to adjust the voltages (ie: magnetic strength) on each sustainer? Clearly different gauge strings will spring to life more enthusiastically than others. I'm currently in the process of putting a sustainer in a fretless baritone electric guitar, but sometimes it's too strong of an attack on the wound strings. I'd like to be able to adjust the voltage with a simple potentiometer on the front of the guitar.

Consider going all the way with software and digitally control the individual sustainers. Instead of having a closed feedback loop in each one, just have an amplifier (maybe a programmable gain amp) sending the input signal to the MCU, then have the MCU listen to that with its ADC and send whatever square wave you want back down into the output transducer amplifier. Ideally you’d have an STFT running on each string, and you’d choose which harmonics to amplify in real time, but 12 concurrent STFTs is getting pretty expensive. Maybe a parallax propellor can do it, if not it would be SBC territory.

Great, you made my day man. I was ducking around with one string sustainers a while, but now you have put me on the right path. Thank you very much! In principle I want to build the same instrument, so 1 full octave, but with the option to make the strings playable via a roller system, so to speak "slide-guitar-ish", but one adjustable roller per string, that can be fixed on every point you wish on that string. Then picking up the signals via pickups (a 1 pole pickup per string) and send it to a amplification, through adjustable volume and tone and optional effects such as reverb, delay, phaser, etc. Think that would be pretty cool. Again: thanks man!

Honestly, for whipping up a board, an electronics guru friend of mine encouraged me for a while to just make my own, and it's been incredibly convenient for these one-off type boards... like you need. You don't need the ferric chloride and stuff.. just get some HCL from your local pool supply, and some hydrogen peroxide (normal 3% works but I now have the higher strength stuff.. doesn't matter much), and your copper boards... and a laser printer. The HCL+Cu ends up being reusable, as it refreshes itself with oxygen to dissolve more, so one bottle can last you yearrrsss. Apparently toner transfer paper works best, but otherwise people use glossy magazine-type paper for printing on, then ironing that onto the board -- I've been using some old clay-based inkjet paper (not the gelatin stuff.. although I've not tried that). Regarding toner: It's *possible* some odd toner doesn't resist the HCL, but I think it's uncommon (without any foundation except my own just works.. and stats: I've not seen many people saying theirs didn't). So anyway: 1. Whip the thing up in kicad (or your favorite circuit design software), 2. Laser print, 3. Clean copper pcb with soap and water and I use a brillo pad to remove oxidation and scratch up its surface nice and fine, 4. Iron onto board (laser toner is plastic! Scary stuff!), 5. Soak in water to soften and remove paper carefully, 6. Put on some goggles because you're new and splashy maybe, and be ready with water and baking soda or whatever (I do it outside with goggles and my hose nearby), 6b. Don't breath the stinky stuff. On hot days the chlorine is more volatile. Could hardly smell it in winter even when .. trying. 7. Put some hcl into your favorite food-grade plastic container, add some H2O2, 8. Drop board in, 9. Watch it slowly eat away the exposed copper over 30 minutes because cold winter night. Much faster on a warm day. Can learn things like using some brush to gently rub the thing in spots that got uneven from finger oils resisting the hcl+peroxide, etc. This lets me prototype boards and print and have a PCB within minutes to hours.. even multiple revisions. It's quite dandy. You can see a tiny board I made, here soaking in water so I could remove my paper: ruclips.net/video/u8GrlC4H7hE/видео.html

Nice dude! I seriously appreciate these videos.

Amazing! The soft onset is beautiful, its a shame it is so unpredictable. The surface transducer is a great idea, especially since the sympathetic nature of the vibrations means you might be able to sneak in some sounds in hard-to-hear low sine waves to get the thing shaking. Your idea of the picks actually made me think of how you could have a muting system that touches felts down, for the same effort, and possibly, the felts lifting off the string could probably agitate a string enough to get it moving on its own. especially if you lift off the felts at an angle, so it brushes the string on its way up. Great video!

have you seen the Moog guitar? it was like 10-15 years ago it had a polyphonic sustainer system with an envelope and it was bonkers, I think you can find a lot of inspiration in it regarding this topic :) great project!

Awesome work!! sounds so good

I can't remember : did you try to "trigger" a string from another with a sustainer ? (useless ? certainly ! :) )

I'd like to see it controlled by WIFI signal traffic somehow... kind of like digital wind.

Thats a great job thanks for sharing!

you can use just transducer to feed sound/signal from electric guitar to Fulgorian Harp if put it under the part where string have contact with top

dude, this is becoing awesome. miss u <3

For getting the strings going, maybe it could be possible to just excite them electromagnetically? Since you already have coils above you could try sending an initial spike, maybe from a capacitor discharge, or maybe just a square/sine fed into the exciter externally, could potentially help out a decent bit on getting the note on to be a bit faster.

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You’re a gem And well underrated, I hope someone sees the genius in you and your channel gets many more views. Your brilliance is lost in a sea of mundane selfie humans, a juicy morsel just waiting to be seen in the darkness of the unlit depths of RUclips.

I love your presentation of explaining DSP.

As an ex real pipe organ builder I'm very impressed with what you have achieved there. Somewhat crude, in organ building terms, but it works and the tone of the pipes is surprisingly good.

Why use a magnet on the output coil? Would'nt a metal core inside the coil might work even better?

thank you for this explanation

Nevermind any relevant discussion on impedance matching. The Piezo is a super high Z device. It needs a ten meg input circuit, you are using much less than that. No wonder their is no bottom end. A JFET buffer with a 10 Mega ohm input resistor will work pretty good.

very nice content, good job