Jeannie

mail: kontakt@tubeohm.com

TubeOhm Jeannie - the TubeOhm Synth

you are not only buying a synthesizer but also the experience of building your own musical instrument

YOUTUBE Video , click on the picture

Filter FM , Filter LFO

Overview

You will be directed to Youtube/Soundcloud via an advanced privacy setting. Or with a direct link.

If you klick on the video you leave TubeOhm.com and go to Youtube.

By clicking on the following demosounds you will be redirected to soundcloud. The Soundcloud privacy policy applies .

Be an artist of your sounds

click !!

BUY Jeannie - go to the shop

TubeOhm - Jeannie (Polyphonic Synth)

Jeannie is an brandnew 8-voice polyphonic DIY synthesizer by TubeOhm. We really took our time to develop it during the past few years and now here is it, currently released in small batches. If it is out of stock, it will come back soon after.

Jeannie features 2 Oscillators, Noise, 2 Envelopes, a Multimode Filter, 10 different Waveshaper, 2 LFOs, Ring Modulator, FM, XOR, OR, and a Step Sequencer. The Oscillators can run independently or synced and feature the impressive amount of 945 different waveforms each! 2048 sounds programs can be stored on the SD Card.

New to the latest firmware is an adjustable Waveshaper per voice. Unlike in many other synths, the Waveshaper is located after the filter, what gives extremely interesting timbres and has its advantages.

The synth contains a digital effect processor with 14 different, adjustable effects.

TubeOhm are constantly improving the firmware at the moment, so you can expect updates and new features during the near future.

This is definitely an extremely interesting DIY project with a high price/performance ratio. Hopefully a little community will grow over time around that nice piece of gear.

To get an impression what Jeannie is capable of, please check out this Amazona article including a video sound demo and also read the detailed manual - it’s worth it!

The TubeOhm website is the resource for some sound demos, building instructions, manuals, firmware updates etc. Please download all that stuff there.

Infos also here :

https://www.amazona.de/tubeohm-jeannie-8-stimmiger-diy-synthesizer

https://www.synthanatomy.com/2021/11/tubeohm-jeannie-diy-8-voice-poly-synthesizer-is-out-now-full-details.html

You additionally need:

• Power supply 12V DC, min. 1A with 5,5/2,1mm center positive

• Micro SD RAM card 8 to 16 GB

This is a Do-It-Yourself kit, not an assembled module. SMD parts are pre-soldered, rest to solder.

DIY level: medium/advanced.

Building instructions can be downloaded here.

How to build Jeannie :

Here are all files you need to build Jeannie. Manuals are in german and english.

DIY Manual (do it yourselfe) V 1.05 - 08.04.22

Bill of material for the Motherboard , FX Board and Case

User manual: New for firmware V 2.xx

Jeannie, Bedienungsanleitung deutsch V 2.xx
Jeannie, user manual english V2.xx

Technical info / schematics

Jeannie, schematics / Schaltplan
Jeannie FX Board schematics /Schaltplan
Case zusammenbau
Housing Assembly
Tips and Tricks for Jeannie Kit 1 and 2
Drilling template for people who want to build their own enclosure. PDF is 1:1

Firmware / sound and seq files

The latest firmware for Jeannie , sounds and some helpful tools can be found on the following >firmware< website.

Jeannie Firmware V 2.xx

Jeannie on github

https://github.com/rolfdegen/Jeannie-Open-source-Synthesizer

Jeannie Forum here :

You can also speak english

On Facebook:

https://www.facebook.com/groups/1504610116590934

Copy and paste it into your browser This is not a direct link.

old Forum on Sequencer.de

https://www.sequencer.de/synthesizer/threads/avr-synthesizer-wave-1-de-generator.87599/page-29

new Forum only for jeannie (german/english ) here :

https://www.sequencer.de/synthesizer/threads/jeannie-polyphonic-diy-synthesizer.160564/

Motherboard

Jeannie - DIY Synthesizer , technical data

Power supply unit 12 V DC -minimum 1 A , plug 5.5 - 2.1 centre positive
micro SD RAM Karte 8..16 GB
Power consumption 3.6 Watt
8 Voices polyphonic
multimode Filter
2x ADSR
2x LFO
10 different Waveshaper
945 different waveforms per oscillator
2 Oszillatoren pro voice
xor, xmod, modulo, and, or and FM
Step Sequencer - 4 Voice poly - in the latest firmware
8-fold unison mode with up to 16 oscillators / one voice
FX with Reverb, Chorus, Delay , Pitchshifter...../ external modul
adjustable clock frequency for the FX DSP - dirty effects
2048 programmes can be stored on micro SD card
graphic LCD display
Teensy 4.1
DIY friendly

FX Board

Jeannie - DIY Synthesizer FX Board

___________Factory effects
clock rate ajustable 10...60 khz
low noise output
Chorus 1
Flanger
Tremolo
Pitch shift
pitch shift/echo
Reverb 1
Reverb 2
__________Tubeohm new effects
X-Delay
Chorus 2 /5 stage
Tonator
Phaser
Flangerator
Distorter
Stereo Echo/Rev
Gate

The FX board is based on a Spinsemi FV-1. At first we wanted to switch off the built-in effects programmes, but some of them are quite usable. We have also programmed 8 new effects.

The audio output

Jeannie uses the PCM 5102A stereo 24 bit converter for audio output,
actual output is limited to 16 bits
Ready to use , no soldering required
you can buy it direct from Amazon. but it is also in the complete kit

DIY ready build FX board

The FX board

Here you can see the soldered FX board. The effort is limited to the three SMD components.

The board with soldered SMD components can be ordered from TubeOhm.

*** Attention, 16.09.21. Due to the shortage of components, the FV-1s will not be available again until January 2022, according to the European distributor. I have not had good experiences with FV-1s from the spot market. Therefore, the board will be offered without the FV-1 for the time being.

It's like real life, at the beginning of the year there were still hundreds of them, but when you need them there's nothing to be had.

But Jeannie works without the effects for now.

If the FV-1 is available again, mad can simply install the FX board and plug it into the Jeannie - done.

*** A full kit contains also the FV-1.However, we have received only a limited number of the FV-1 ICs .

Frontside:

you see the LCD, encoder, pots and switches.

Backside:

On the right side at the back the Teeny 4.1 is plugged in. On the right side in front of it is the plug-in digital-analogue converter.

In the middle is the FX board . This is simply plugged onto the motherboard

Thus Jeannie consists of :

the DIY motherboard which already has the complete and functional synthesizer. 160x100 mm
a DSP extension board (also DIY) if you want to have effects like reverb,echo,chorus, pitchshifter......***a DSP module is not necessary for the function ... but it sounds much better !
the housing
Power Supply 12V minimum 1A

The technology

Jeannie is based on the Teensy 4.1

DAC output is 16 bit stereo .

The unit can be freely programmed with 4 potentiometers, one encoder and 6 switches. An color 1,8 TFT 160x128 display provides visual feedback and displays all parameters in

And yes, we used 6 SMD components because space was limited.

However, we made sure that the footprint of the SMD components was enlarged so that the components can be soldered easily.

But we will also offer boards where the SMD components are already soldered on.

So, the coolest thing is the easy plug-in DSP board with the FV-1 and an EE-Prom.

EE-Prom . So you can - if you can - also write your own effect programmes.

You can also operate Jeannie without the DSP board at first, i.e. with the sound without effects. Then you buy the board, plug it into the board from below .... Well, your ears will be surprised ......

Look to Facebook for the latest Info

Facebook >>>> Tubeohm.TubeOhm instrumenrts

Here is the case:

Side parts black and the panel dark blue transparent

The plexiglas case is a new development compared to the Shruthi Case . Due to the structure, plugged and additionally screwed with the spacers of the board, it is much more stable. The additional side panels serve as design elements and tilt the device slightly so that the display is more visible. Special allen screws are used for the optics.

The scope of delivery includes: