TubeOhm Jeannie User manual

Jeannie
POLYPHONIC DIY SYNTHESIZER
User manual
Firmware V2.19
Jeannie is an 8-voice polyphonic open source synthesizer kit with digital sound synthesis and digital
ilters based on a ast ARM Cortex-M7 processor with 1MByte Ram.
For sound generation, the user has a variety o classic and band-limited wave orms at his disposal, as
well as a polyphonic multi-saw. A pool o 15 wave orm banks with 63 di erent wave orms each o er
plenty o space or sound experiments. A waveshaper with di erent characteristics provides or gentle
to vicious sounding distortions. To tame the wave orms, there are three digital ilters. The 1st ilter is a
12dB state variable ilter with TP/HP/BP unction. The 2nd ilter is a 24dB ladder low pass ilter. The 3rd
ilter is located at the internal sum output. It is a 12dB high pass ilter with adjustable cut-o requency
rom 20Hz - 2000Hz. A 24Bit DSP e ect module with adjustable parameters rounds o the sound
synthesis. An integrated polyphonic step sequencer provides or the play ulness o the small
synthesizer.
A total o 2048 sound programmes rom 15 banks can be loaded and stored via an integrated SD card.
A colour 1.8 inch TFT display allows a clear menu structure and easy operation o the synthesiser. The
parameters are entered via our rotary knobs below the display as well as an encoder or selecting the
sound programmes and switching to the menu unctions. In addition, six keys are available or
operating special unctions o the synthesiser.
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Inhaltsverzeichnis
Operatin manual ..........................................1
Table o contents ..................................................2
Prologue ...............................................................3
Special thanks ......................................................3
The development team .........................................3
Firmware ...............................................................3
The assemblies ...............................................4
Block diagram .......................................................5
Jeannie Synthesizer .............................................6
Speci ications .......................................................7
Controls and connections ...........................8
Front .....................................................................8
Connections on the back ......................................8
Power supply connection .....................................9
Power supply ........................................................9
Power ON .............................................................9
SD Card ............................................................10
Folder and ile structure ......................................10
Operatin concept .......................................11
DATA ...................................................................11
Poti ......................................................................11
Switches..............................................................11
Volume.................................................................12
Display.................................................................12
Menuestructure ..................................................13
Menu pa es.....................................................14
Selecting a Sound Program................................14
Showing the unction parameters........................14
Oscillator.........................................................14
Selecting a wave orm..........................................14
Pitch setting.........................................................15
Glide....................................................................15
Oscillator Level ...................................................15
Oscillator Mixer ...................................................15
Pulse width modulation.......................................15
Quadsaw ............................................................16
SawMix and spread ............................................16
Detune.................................................................16
Oscillator submenu ....................................17
Wave Shaper ......................................................17
Gain ....................................................................17
Sync ....................................................................17
Transpose............................................................17
Tune ...................................................................17
Noise ..................................................................17
Oscillator modulation ..........................................17
Filter..................................................................18
Cuto / Resonanz................................................18
Resonanz ...........................................................18
Envelope .............................................................18
SVF Typ ..............................................................18
Filter submenu...............................................18
Keytraking ..........................................................18
Velocity ...............................................................18
LFO .....................................................................18
Filter submenu 2 ..........................................19
Cuto / Resonanz ...............................................19
Filter switching ....................................................19
Envelopes........................................................20
Attack, Decay, Sustain, Release ........................20
Envelope submenu .......................................20
Curve ..................................................................20
Velocity ...............................................................20
LFO.....................................................................21
Shape, Rate, AMT, SYN .....................................21
Velocity ...............................................................21
LFO submenu..................................................21
Mode, Fade-In, Fade-Out, Curve .......................21
Modulation.......................................................22
Slot 1 - 24 ....................................................22 - 23
FxDSP menu....................................................24
Parameter adjustment ........................................24
SEQUENCER ..................................................25
STEP ..................................................................25
PITCH .................................................................25
BPM ....................................................................25
DIV ......................................................................25
SEQUENCER submenu ...............................25
LEN .....................................................................25
TIME ...................................................................25
DIR .....................................................................26
MODE .................................................................26
Sequenzer Pattern .......................................27
Loading and saving a sequencer pattern............27
SYSTEM menu ...............................................28
Midi cannel..........................................................28
Velocity curve......................................................28
Pickup unktion....................................................28
MIDI-Clock...........................................................28
Program change..................................................28
parameter Pot 1 - Pot 4.......................................28
SYSEX DUMP .................................................29
Parameter settings .............................................29
Receiving and sending SysEx data.....................29
Save Sound Pro ram....................................30
Create Init Program ............................................30
Appendix .........................................................31
Tipps & Tricks .....................................................31
Start problem ......................................................31
SD card is not recognised ..................................31
Tutorial 1 : programing sounds....................31 – 33
Midi Controller Messa es .........................34
Midi Controller Messages (0 – 31) .....................34
Midi Controller Messages (32 – 63) ...................35
Midi Controller Messages (64 – 95) ...................36
Midi Controller Messages (96 – 127) .................37
Technical data...............................................38
Copyright ............................................................39
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Prolo ue
Thank you or purchasing the polyphonic synthesizer kit "Jeannie" rom TubeOhm Instruments.
The synthesiser is desi ned as a kit and is aimed at customers with basic
knowled e of electronics and some experience with di ital or analo ue
synthesizers.
Some mechanical experience is required, as solderin and the assembly of a
cabinet are necessary.
This synthesiser combines di erent types o sound synthesis and is thus a great playground or sound
tinkerers. A graphic 1.8-inch TFT display or visual representation o the wave orms and a simple menu
structure acilitate operation.
Special thanks to
Paul Sto regen, https://www.pjrc.com/
ElectroTechnique, https://electrotechnique.cc/
and to all those who have been orgotten here.
The development team
Hardware Andre’ Laska, Rol Degen
Designe: Andre’ Laska tubeohm.com
So tware: Rol Degen github.com
Firmware: V2.19 Januar 2023
Download: tubeohm.com
Jeannie DIY Block: sequencer.de
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The assemblies
The kit consists o a total o our boards, whereby the Teensy 4.1 board and the PCM5102A board are
supplied already assembled and are simply plugged into the existing contact strips on the back o the
panel board.
The panel board contains all the controls and a 160x128 pixel colour TFT display. The FxDSP board is
equipped with an FV-1 reverb IC rom Spin Semiconductor and is responsible or the sound e ects.
Panel Board (SMD bereits bestückt)
Teensy 4.1 Board (fertig bestückt) PCM5102A Board (fertig bestückt)
Fx DSP Board (SMD bereits bestückt)
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Block dia ram
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Jeannie
Jeannie is a digital synthesiser. The sound generation o Jeannie is based on an ARM Cortex-M7
processor with a clock requency o 720 MHz and 1 MB RAM. With this, eight voices can be generated.
Two digital oscillators with a selection o over 900 wave orms are available or each voice. These
include classic to band-limited wave orms and a multisaw. In addition, a noise generator with white and
pink noise is available. There is a digital multimode ilter with 12 dB slope, which can be operated as
low-pass, band-pass or high-pass. In addition, the multimode ilter can be switched to a ladder low-pass
ilter with 24 dB slope. At the sum output, an adjustable high-pass ilter attenuates the low tones.
Downstream o the ilter is a waveshaper with di erent characteristics, which can be used to distort the
sound rom light to strong. Two ADSR envelopes and three LFOs are available or modulation. A 24-bit
DSP e ect module based on the FV-1 processor rom Spin Semiconductor rounds o the sound
synthesis. A polyphonic sequencer with 16 steps provides or urther play ulness.
DCO / Noise / Modulation / Waveshaper
Two oscillators are available or each voice and can generate di erent oscillation orms simultaneously.
For the pulse oscillation orm, the pulse width or each oscillator can be varied manually, by its own LFO
or via an ADSR generator. Both oscillators can be switched on or o . Stepless mixing o both oscillators
is also possible. In addition, white or pink noise can be added i desired. The pitch can be adjusted up
or down over 2 octaves. In addition, there is a pitch envelope that can a ect both oscillators separately.
The oscillators can modulate each other with the modes XOR, XMOD, MOD, AND, Phase and FM. A
waveshaper with di erent characteristics and adjustable gain provides gentle to vicious sounding
distortions behind the ilter.
Filter
Jeannie has three digital ilters, which have di erent settings. In the ilter menu you can choose
between a controllable 12dB state variable ilter (TP / HP / BP) or a 24dB ladder ilter (TP). At the sum
output there is a 12dB high-pass ilter with a requency rom 20Hz to 2000Hz. For each ilter the
requency and resonance can be adjusted. The ladder ilter also has a drive parameter.
Envelope / LFO
An ADSR envelope generator is available or both the ilter and the VCA. The attack phase can be set
rom linear to exponential. Decay and release are always exponential. The adjustable rise and all times
range rom 0.3ms - 12sec. Jeannie has three LFOs that are permanently assigned. LFO1 modulates
the pitch o oscillator1+2. LFO2 modulates the requency o the ilter (cuto ). LFO3 modulates the VCA
and e ect parameters in the FX DSP. Each LFO also has an adjustable ade-in and ade-out unction.
This allows you to create small delays or decay e ects in the LFO modulation.
Effekte
Jeannie is equipped with a programmable e ects module. The module is based on a 24bit FV-1 reverb
chip rom Spin Semiconductor. There are 15 e ects to choose rom. Each e ect can be changed by
modi iable parameters such as reverb time, eedback or pitch. With the LFO3, each e ect parameter
(P1-P3) and the Fx volume can be modulated.
Sequencer
An integrated polyphonic sequencer with 16 steps ensures playability. A maximum o 4 notes can be
entered per step. The notes can be recorded and edited directly in the sequencer editor using a midi
keyboard. The volume o the notes (velocity) is also recorded. It is displayed in the orm o coloured
steps.
Memory
The synthesiser has an internal SD card on which a total o 2048 sound programmes can be stored.
Individual programmes or banks can be loaded or saved via USB using the SysEx protocol.
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Specifications
- 8-voice polyphonic DIY synthesizer
- ARM Cortex-M7 processor 720MHz with 1MByte Ram
- two digital oscillators per voice
- 15 wave orm banks with a total o 945 wave orms and MultiSaw
- 12 standard wave orms, some o them band-limited
- Noise generator (white and pink noise)
- Oscillator modulation (XOR, XMOD, MOD, AND, PHA, FM)
- Waveshaper with di erent wave orms
- 3 LFOs with 64 wave orms or pitch, ilter, AMP and e ect modulation
- 2 PWM LFO rom 0.04Hz - 25Hz
- digital ilters
12dB state variable ilter with resonance LP/HP/BP per voice
24dB low pass ladder ilter with resonance, gain and saturation per voice
12dB global high pass ilter 20Hz - 2000Hz with resonance at sum output
- 2 ADSR generators 0.3ms - 12s with linear and exponential wave orms
- 24Bit DSP e ect module with 15 e ects and adjustable parameters
- Polyphonic sequencer with 16 steps
- SD cards or loading and saving a maximum o 2048 sound programmes
- USB SYSEX protocol or trans erring sound programmes
- colour 1.8 inch display with a resolution o 160x128 pixels
- Volume control
- Bass boost unction
- 4 potentiometers or parameter input
- Rotary encoder or menu control and sound selection
- 6 unction keys
- Midi In and Midi Out /Midi True
- stereo audio output jack 6.3mm
- USB 2.0 Midi inter ace
- Easy irmware update via USB
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Controls and connections
Front
1SOUND PATCH / MENÜ 8SHIFT FUNcTION 15 FX CLIP LED
2PARAMETER pot 9LOAD / SAVE 16 FX ON / OFF LED
3PARAMETER pot 10 SEQUENCER 17 UNISONO MODE LED
4PARAMETER pot 11 MUTE / PANIC 18 TEMPO LED
5PARAMETER pot 12 VOLUME 19 BASSBOOST ON / OFF
6UNISONO 13 DISPLAY
7BASSBOOST 14 MIDI LED
Connections on the back
20 12V DC POWER SUPPLY CONNECTION
21 Power switch
22 STEREO OUTPUT
23 MIDI OUT / MIDI THRU
24 MIDI IN
25 USB CONNECTION ( or irmware update)
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Power supply connector
The synthesiser is powered by an external 12V DC power supply at the power supply connector (20).
The power supply must be rated or a current load o at least 500 mA or more. The power switch (21) is
used to turn the synthesiser on and o . Make sure that all peripheral devices such as active speakers
or ampli iers are switched o and turn down the volume on the volume control (12).
Power supply unit
The synthesiser is supplied without a power supply unit. We recommend using a switching power
supply with 12 volts DC and 1000mA load. The power supply should have a 5.5 mm / 2.1 mm spar
connector and a positive polarity o the inner conductor as shown in the illustration.
PIN Spannung
1 + 12V DC
2 Ground
Switch on
A ter switching on, the system parameters or initialising the synthesiser are loaded rom the internal SD
card located in the Teensy 4.1 board. During this time the start screen with the TubeOhm logo is
displayed. The necessary system olders and iles must be present on the SD card, otherwise an error
message will appear.
A detailed description o the required system olders and iles can be ound on the ollowing page.
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SD-Card
The synthesiser is supplied without an SD card. Micro SDHC cards o the type Class 10-UHS I rom 8 -
64GB can be used as shown in the illustration.
microSDHC Karten Class 10-UHS I Teensy 4.1 mit SD-Karte
All required olders and iles can be downloaded as a ZIP ile rom the download section o the
tubeohm.com website. SD cards up to 32GB must be ormatted as FAT32, SD cards up to 64GB as
exFAT. Please copy the contents o the unzipped ZIP ile completely onto the SD card (see below).
Folder and file structure on the SD card
The olders A - P contain the stored sound programmes. Sound programmes are numbered rom 1 to
128. An exchange o iles and olders is possible at any time, as long as the numbering and designation
matches the original.
The PIC older contains the start screen and other picture elements. The SEQ older contains the saved
sequencer patterns. A sequencer pattern can be saved as individual iles in the sequencer editor. The
pattern iles are numbered rom 1-128.
Up to 128 sequencer patterns can be saved and loaded in the Sequencer Editor. I you are outside the
Sequencer Editor and save a sound programme, the current sequencer pattern is saved as part o a
sound programme.
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