I'm planning to make one of these! I'm hoping to use the guts from an A3 scanner rather than discrete IR receptors though, so I can handle both 65 and 88 note rolls... I love the idea of using the original gearing and leaving the air motor in place, I have a couple of spares so I'll do that too!
Hello, I have a player piano and I have the idea of changing MIDI files onto a paper roll using solenoids. The idea I think sounds simple, but any information or ideas you may have would be appreciated.
This is an easy task 'software speaking', but not an easy one regarding electromechanical parts machining.. I mean alligning around 90 solenoids in a row to make them simultaneously punch what's coming in on the MIDI input connector.. not possible as a design. There are around 6 holes per inch (0.4233 cm/hole) so you will need some kind of solenoid spacings wizardry to accomplish all the punching. One way would be to place the solenoids in 'delayed' rows (one solenoid every 6-7 holes and placed on around 6-7 rows to punch ONE line) that would punch all the holes but with help of a software that would calculate 'when' each solenoid will punch while the blank paper is rolling.
I never used Arduino stuff. Always started from scratch using PIC MPLAB-X anc raw C code. You can check my C code in the link above and try to translate my approach to Arduino.. Good Luck !
My 69 Strat tone stayed the same after the installation. I'm very picky on that believe me.. No change ! I still play with this kit installed. Very good move I did.. And this is not destructive in any way. I could have it removed with no harms on the guitar.
Rik, I'm happy you enjoyed my video. Thank You ! What you call the 'MIDI scanner part' involves around 6 months of work and tweaking.. And this job needs an identical paper roller/brass tracker bar unit as the one I found and used which is very hard to achieve here.. I would not have the patience anyway to get back to the very start of this demanding design. Sorry, but again thank you for the interest you have for my project. I do appreciate !
Le défi, la passion, la nostalgie sont tous des éléments qui nous guident vers un futur. C'est toujours un plaisir de découvrir la passion des gens. L'idée de créer une "machine" qui peut lire, convertir en MIDI, les vieux rouleaux des pianos, sans les endommager, est magnifique.
After all those interesting questions, answers and discussions and success reports after some design steps in the sdiy group it is nice to see that you made a perfect working Piano Roll Player out of it - and the design of the wooden cabinet with the old motor and the piano roll storage is very very nice!!! Congratulations!
In fact what you hear in this video is a small internal MIDI sampler card with piano samples --> added with an external MIDI connected Yamaha synthesizer with a 'Bells' preset sound selected. 2 sounds overall. The beauty here is that with a MIDI output like I use you can select whatever sound you want mixed along.
Super demonstration I bought one I've had this pedal for almost 5 days... I love this pedal Great output choice for stereo or mono... It is essential for Stereo guitar... Thanks a lot
When I was going to Berklee, we had synth class. ARP was big with Berklee, being in Mass. We learned on the Odyssey and 2600. So when the Avatar came out I had to have one. I ordered it for $1600.00, if I remember correctly ( Big Money in those days). I waited 6 months ( listened to this recording everyday), it never came in to the store! Money was refunded , ARP closed its doors and that was that. I now own many Guitar Synths and Keyboard Synths , it still kills me that I never got to own this. Yes, I know of the terrible tracking issues and the problems with the hexaphonic pickup. I wasn’t going to screw it in to the top of the guitar. I worked out a system where the pickup would attach to the pickup ring.
Behringer just announced that they *might* make a clone of this and sell it for $499, with an enhanced pickup/input, FYI... So you might be able to finally get it!
@@ChunterInfo That’s because Tony used the ARP Quadra, which had this Avatar /Odyssey as part of the complete Synth! The Avatar is basically an Odyssey without a keyboard.
I just purchased one of Jean-Pierre's stereo to mono preamps... I absolutely love it! The preamp works just as I was hoping, giving me the flexibility of playing my stereo Gibson guitar through a mono amp when the situation arises... without any loss of volume or tone using all the different pickup combinations. Fantastic! It also works great with the stereo outputs for the times when I do want to use two amps. Such a useful accessory to have for Stereo guitar owners.
Bonjour Jean, I recently tumbled across an eBay seller selling a couple of these and I had the same idea as you. I saw that you sold the first and have no intention of making more, but would you be willing to correspond and help me in building my own? Your website is very detailed and I think I have most of it down, I'd just like to rack your brain a bit about assembling the pcb and the wiring. This is a great a video and your other projects are neat, glad I found your channel.
@@jpdesroc Jean do you still have any PCBs left? I have a scanner here that I bought a while ago with the intent to make one of these but life got in the way and I never contacted you. Thanks.
@@talhabulic3189 Here are all the info about this project.. schematics + PCB artwork + software code..: www.arcenson.com/projects/Hammond_Scanner_Chorus_Vibrato_Effect/
Some folks called Analog Outfitters sold a few, I have #19 but it is not going on the market anytime soon and they cost a rocket besides. It has a few basic controls and you can dial up some variables.
Here is the technical details of the main PCB from the author: This stereo encoder is a halfway between analogue and digital processing. It combines the best from both domains to provide high-quality and easy to build device. The sampling frequency used in this stereo encoder is 97 times (!!!) higher than the pilot tone frequency. This makes very easy to reject all spectral residues around the sampling frequency without affecting the main signal characteristics. Using of a microcontroller allows to build this stereo encoder with reduced part count and get excellent results in real operation. This stereo encoder advisedly does not contain any preemphasis circuit. Remember the key fact: a compressor/limiter/clipper device must be always present between the preemphasis circuit and the stereo encoder or modulator. Only this configuration ensures loud sound without exceeding the maximum frequency deviation limit (75 kHz). The stereo encoder is designed to provide really good sound. This always needs to use the compressor/limiter/clipper device where the preemphasis is precisely assured. The Pira CZ Compressor/Limiter/Clipper is highly suitable for this task.
Techniquement, l'enregistrement laisse à désirer mais en ce qui concerne l'interprétation cette chanson de Richard Desjardins, c'est un bonheur à écouter.
I was wondering about the function of the transistor for sensing / sending signal between the looper switch and the MCU pin. Is this to compensate for internal pull up in the PIC MCU? Using AVR for various interfaces emulating hardware switches like keyboards etc, I never needed an active component.
The 2N3904 NPN transistor acts here as a pull-down switch simulating the actual 3 posssible foot actions on the original pedal. This transistor does not sense anything. It just receive pulses from the PIC CPU to activate the Donner looper. Thanks for the comment.
Thank you for the answer. OK. So the transistor simulates the switch. The Donner input pin is normally pulled up as reads "1", and when the foot switch is pressed, closing to ground, the pin reads "0". The transistor normally blocks the flow from collector to ground, and when voltage is high on base, it connects this sensing pin to ground, which also reads "0" in Donner. So the transistor acts as an isolation layer between the two IC. But they should operate on similar voltage (5 or 3.3v). And wouldn't the same effect be achieved without the transistor? Normally, you write HIGH to the PIC GPIO5 (or configure it as pull-up read), which indicates the "switch" is open. When you write LOW to GPIO5, it would be the same as connecting the pin line to ground, and indicate the switch pressed state. Is it too risky to skip the transistor?
@@tub8r >And wouldn't the same effect be achieved without the transistor? No, because the Donner CPU works on 3,3vdc and the PIC works on +5vdc so a HIGH output level from the PIC would 'overload' the Donner's CPU switch input and could damage it. The 2N3904 isolates both VCC voltages from each other and pull down the Donner's switch correctly for that.
@@tub8r By the way, I'm thinking of selling a small board with a programmed PIC that would read the 3 switches and send the 3 sets of pulses on any 'one switch looper' to make it work with 3 switches since it's (to me) more natural.. Thanks for your comments !
As a Hammond player and a guitar player for decades, I always wondered what a Vib. Scanner would sound like on guitar. It sounds a bit choppy and harsh as compared to on the tone wheel organ. If you could add a Dwell function, perhaps by syncing adjustable opto-isolators to taper the rise and fall of the audio signal's modulation, that would be perfect. Check out the (NSHOS ) *NORTH* *SUBURBAN* *HAMMOND* *ORGAN* *SOCIETY* site- *WURLITZER* *4600* *article* . Look at the VIBRATO page of the article. The 1953-1963 Wurlitzer Electrostatic Reed organs (Hammond's closest relative) use a *PHASE* *type* *vibrato* , that is purely electronic (not electromechanical). The NSHOS site has amazing animated, and thorough studies of the 1935-1975 HAMMOND TONE WHEEL ORGAN, the 1953-1963 Wurlitzer 4600 Electrostatic Reed organ , and the 1967-1972 HAMMOND X-66 (like on my avatar). I own a 1971 X-66. They only made 1,000 X-66's. I also own and play on my channel's opening video, the Wurlitzer 4600's spinet version (less keys/pedals) Electrostatic Reed organ- the 1956' model 4410.
This sounds great! I have a Leslie rotary effect pedal and a Motion Sound AR-112, but this unit sounds better by far. I would like to buy one. johnrack@aol.com
Hi John, I only built one unit of this. I was not considering selling it but let me think about that.. First I will need to actually recall the overall cost in parts and time I put in it.. I'll be back to you. BTW you can PM me directly ?
jpdesroc My wife is a Hammond organist, and owns three B3’s. I’m am very familiar with them. As a guitarist I own several rotary effects pedals and a Motion Sound AR-112 rotary speaker unit, but they are all more suited for live shows that the studio. I also have several Strats and a Vibro King amp, which is very similar to your gear. So I’m confident I would get a similar sound.
Nice job,my friend! i am a keyboardplayer, and i aim to "rebuild/reprogram" a chorus pedal to a somewhat leslielike effect to my keyboard, the real thing is to expensive..(took a peek at your pics, quite a job..)
