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93

OB-X8 User’s Guide

Appendix E: Alternative Tunings

29. John Chalmers JI-1, Based loosely on Wronski’s and simi-

lar JI scales, May 2, 1997.

(Chalmer’s book “Divisions of the Tetrachord” is a late 20th century

masterwork, exploring the mathematical underpinnings of just tunings.)

6 0 = Cents 0. Ratio: 1/1 (JUST)
61 = Cents +104.95541 Ratio: 17/16 (JUST)
62 = Cents +203.910002 Ratio: 9/8 (JUST)
63 = Cents +297.513016 Ratio: 19/16 (JUST)
64 = Cents +386.313714 Ratio: 5/4 (JUST)
65 = Cents +498.044999 Ratio: 4/3 (JUST)
66 = Cents +603.000409 Ratio: 17/12 (JUST)
67 = Cents +701.955001 Ratio: 3/2 (JUST)
68 = Cents +795.558015 Ratio: 19/12 (JUST)
69 = Cents +884.358713 Ratio: 5/3 (JUST)
70 = Cents +999.468017 Ratio: 57/32 (JUST)
71 = Cents +1088.268715 Ratio: 15/8 (JUST)
72 = Cents +1200. Ratio: 2/1 (JUST)

30. John Chalmers JI-3, 15 16 17 18 19 20 21 on 1/1, 15-20 on

3/2, May 2, 1997.

60 = Cents 0. Ratio: 1/1 (JUST)
61 = Cents +111.731285 Ratio: 16/15 (JUST)
62 = Cents +216.686695 Ratio: 17/15 (JUST)
63 = Cents +315.641287 Ratio: 6/5 (JUST)
64 = Cents +409.244301 Ratio: 19/15 (JUST)
65 = Cents +498.044999 Ratio: 4/3 (JUST)
66 = Cents +582.512193 Ratio: 7/5 (JUST)
67 = Cents +701.955001 Ratio: 3/2 (JUST)
68 = Cents +813.686286 Ratio: 8/5 (JUST)
69 = Cents +918.641696 Ratio: 17/10 (JUST)
70 = Cents +1017.596288 Ratio: 9/5 (JUST)
71 = Cents +1111.199302 Ratio: 19/10 (JUST)
72 = Cents +1200. Ratio: 2/1 (JUST)

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Summary of Contents for OB-X8

Page 1: ...USER S GUIDE www oberheim com ...

Page 2: ...s Hector Tony Karavidas Mark Kono Justin Labrecque Andy Lambert Karl Lee Michelle Marshall Andrew McGowan Joanne McGowan Julio Ortiz Steve Starkweather Brian Tester and Gabby Wen OB X8 SOUND DESIGN Marcus Ryle Drew Neumann Francis Preve GilAssayas Huston Singletary James Terris J3PO Julian Pollack Kurt Kurasaki Matia Simovich Paul Schilling Peter Dyer Robert Rich ...

Page 3: ...User s Guide Version 1 2 May 2023 Oberheim 1527 Stockton Street 3rd Floor San Francisco CA 94133 USA 2023 Oberheim www oberheim com ...

Page 4: ...ent the socket outlet must be installed near the equipment and must be easily accessible For Technical Support email support oberheim com This device is to be serviced by an Oberheim qualified technician only Service technician must exercise due caution when opening the device to avoid electric shock and the device being unsecured when open CALIFORNIA PROP 65 WARNING This product may expose you to...

Page 5: ...n Edited Program to its Original State 8 To disable the compare function and return to the edited sound turn off the global switch 8 Manual Mode 8 Creating a Program from Scratch 9 Saving a Program 10 Canceling Save 11 Exploring the OB X8 12 Chapter 2 OB X8 Controls 13 Global Settings 13 Oscillators 19 Oscillator Parameters 21 Filter 23 Filter Controls 24 Envelopes 26 Filter Envelope Controls 28 V...

Page 6: ...s 42 Pitch Lever 43 Mod Lever 44 About Lever Box Mode Keyboard and Module 45 Mod Mode 46 Arp Mode 47 Arpeggiator Controls 47 Hidden Arp Features 49 Chapter 3 Page 2 Parameters 50 Chapter 4 Creating Sounds 63 Synth Bass 63 Creating Synth Brass 66 Turning Synth Brass into a String Pad 67 Creating a Hard Sync Lead 68 A Final Word 69 Appendix A Troubleshooting and Support 70 Troubleshooting 70 ...

Page 7: ...oard only 74 Resetting the Global Parameters 74 Appendix C Exporting and Importing Programs and Banks 75 Importing Programs and Banks 76 Appendix D Factory Sounds List 78 OB X8 78 OB 8 79 OB Xa 80 OB SX 80 OB X 81 SPLIT 81 G1 81 G2 81 DOUBLE 81 Appendix E Alternative Tunings 82 OB X8 MIDI Implementation 112 MIDI Messages 113 NRPN Messages 119 SysEx Messages 124 Packed Data Format 127 ...

Page 8: ...viii Oberheim ...

Page 9: ...s resulted in the synth which now sits in front of you the OB X8 Along the way the crew at Sequential and Oberheim alumni such as Marcus Ryle who co designed the OB X8 breathed new life into the original OB concept and created an instrument that has captured and embodied the heart soul and every nuance of the original OB series synths More importantly it combines the voice architectures of the ori...

Page 10: ...the best of all worlds and all OB poly synths The OB X8 is first and foremost a performance instrument Most of the sound shaping controls are immediately accessible on its front panel packing a tremendous amount of power and versatility into a compact easy to use format This chapter of your user s guide provides an overview of essential tasks such as how to make basic audio connections and how to ...

Page 11: ...a computer The OB X8 is a Class Compliant USB device and does not require additional drivers when used with Mac OS or Windows See Using USB on page 3 for more information 4 MIDI In Out Thru Standard 5 pin MIDI DIN connectors for commu nicating with MIDI equipped devices 5 Sustain Accepts a momentary normally open or normally closed footswitch to control sustain 6 Volume This connector accepts a st...

Page 12: ...r single cable mono operation 10 Headphone Output not shown inch stereo headphone jack Headphone volume is controlled by the master volume knob on the front of the OB X8 below the lever box Using USB The OB X8 s USB 2 0 port enables bidirectional MIDI communication with a computer A MIDI interface and MIDI cables are not necessary just a USB cable The OB X8 is a Class Compliant USB device It does ...

Page 13: ...tting Up the OB X8 Here s how to get your OB X8 up and running 1 Plug the power cable into the AC power connector on the back panel of the OB X8 2 If you have an expression pedal connect it to volume for volume or filter for filter cutoff on the back of the OB X8 If you have a sustain pedal connect it to the sustain jack 3 If you have purchased the OB X8 Module connect a MIDI controller using a MI...

Page 14: ...gain To calibrate the pitch of the oscillators 1 Press the tune button The program select button LEDs begin flash ing in sequence and the display indicates the tuning sequence while the OB X8 performs its auto calibration procedure 2 When finished the front panel controls return to normal and you can play the OB X8 To fully calibrate the oscillators filters and VCAs 1 Press the global button and s...

Page 15: ... X8 bank filled with original presets that take advantage of the OB X8 s capabilities The original OB series synths used buttons labeled A B C and D to select their Group It s not necessary to pay any attention to the letters but they can come in handy if you are looking for a specific preset like OB 8 C7 Appendix E lists all of the original OB series factory presets There are also 128 Split progr...

Page 16: ...Doubles in each bank When a program is selected the individual presets of the pair can be edited by pressing the upper or lower switch Editing Programs Because all of the sound shaping controls of the OB X8 appear on the front panel editing an existing program is simple just turn a knob and listen to its effect Keep turning knobs and pressing buttons and if you like what you ve created save the pr...

Page 17: ...are an edited program to its saved version 1 Edit a program by changing something obvious i e cutoff or pitch 2 Press the WRITE switch It starts flashing 3 Press the global switch The LED on the global switch lights up and the display indicates compare mode 4 Play the keyboard to hear the saved version of the sound To disable the compare function and return to the edited sound turn off the global ...

Page 18: ...w sound from scratch The OB X8 makes this easy by providing a Basic Program that you can quickly recall at any time This preset is very simple with a single oscillator as its basis Recalling the Basic Program is equivalent to editing all of the settings to this simple setting and does not overwrite an existing program unless you save it To recall the Basic Program 1 Hold down the manual button 2 P...

Page 19: ...write but once you press a program switch 1 8 the WRITE command is executed and the program at that location is overwritten To save a program to a different Group and or Bank location 1 Press the write button Its LED begins blinking 2 Turn the bank encoder to move through Banks to choose the desired bank location 3 Turn the group encoder to choose one of the 16 Group locations 4 Press a program sw...

Page 20: ...e it 1 Get ready to save by pressing the WRITE switch It starts flashing 2 Press the global switch The LED on the switch lights up indicating compare mode 3 Use the Bank and Group knobs and the Program buttons to navigate to the sound you want to compare then play the keyboard to hear the sound 4 To disable the compare function and go back to the edited sound turn off the global switch You can t s...

Page 21: ... get out of it First read Global Settings on page 13 There are useful settings and functions found in the Global menu that will affect the overall behavior of your OB X8 In particular read about Pot Modes and determine which works best for you when you re editing sounds Finally be on the lookout for tips and notes scattered throughout this manual to gain a better working knowledge of the OB X8 We ...

Page 22: ...encoder Settings are made with the group value encoder 1 Master Tune Note 12 12 Master tune control Steps in semitones up to one octave up 12 or down 12 0 is centered and equals A 440 standard pitch 2 Master Tune Fine Module only 127 127 Fine control over Master Tune which replaces the Master Tune pot on the OB X8 keyboard s top panel 3 Local Control All Off Keys Levers Off On When on the default ...

Page 23: ...s to parameters can be made without the parameter jumping to the current knob position This was the only edit mode available on the original OB series units so it is the default mode for the OB X8 In Passthru mode turning the pot has no effect until after the edited value equals the preset value that is until the edited value passes through the stored value Jump mode uses an absolute value based u...

Page 24: ...MIDI DIN Clock MIDI USB Clock Sets the port Arp MIDI DIN or USB by which Arpeggiator clock is received When set to Internal the rate pot on the Lever Box sets the Arp tempo When Clock Input is selected a control voltage trigger or clock signal sent to the rear panel Arp jack will control the arp clock If arp clock is set to anything except internal the Arpeggiator won t function unless it receives...

Page 25: ...a new preset is selected and are not stored with a preset when Writing the preset 17 Box Mod Params Global Per Preset The Mod parameters in the Lever Box can be stored and recalled with each preset when in Per Preset mode If set to Global these parameters are left unchanged each time a new preset is selected and are not stored with a preset when Writing the preset 18 Sustain Pedal Mode Normal Rele...

Page 26: ...e panning settings of a program 22 Pitch Lever Direction Normal Reversed Sets the operation of the Pitch Lever In Normal default mode the pitch is raised when the lever is pulled toward you and lowered when it is pushed away from you Reversed mode sets the opposite directionality for the lever 23 MIDI Param Send Off CC NRPN Changes to the values of front panel controls are transmitted via MIDI as ...

Page 27: ... MIDI Output Pressing the write switch performs the operation This is useful for archiving your OB X8 programs 30 Reset Prgm To Factory Preset Group Bank All Use this command to set the currently selected program group bank or all of the synth s presets including Splits Doubles back to factory default All programs will be reset to the corresponding factory versions 31 Screen Saver On Off The OB X8...

Page 28: ... Each discrete oscillator generates sawtooth pulse and triangle waves The square wave can be set to match OB X Xa or OB 8 level characteristics using Page 2 You can vary the pulse width of both pulse waves simultane ously using the pulse width knob or the LFO from the Modulation section You can set the individual pulse widths for Osc 1 and 2 by holding the Osc 1 or Osc 2 pulse switch and turning t...

Page 29: ... the oscillators section press the pulse switch to combine a pulse wave with the sawtooth wave 5 Press the saw switch once to generate only a pulse wave saw will be off Note that when turning the pulse width knob it s possible to make the pulse width so narrow that the sound disappears With both wave form switches off the oscillator will generate a triangle waveform 6 Turn up the level of Oscillat...

Page 30: ... 13 for more information The osc 2 detune knob affects the pitch of Oscillator 2 Pulse Width The pulse width control knob produces a square wave 50 duty cycle when at zero and reaches 100 duty cycle of off at maximum Although the initial pulse width setting cannot be below 50 modulation of the pulse width is bipolar and can range from 0 to 100 More on this in the LFO section The pulse width knob c...

Page 31: ...ages X Mod Oscillator 2 s sawtooth wave will now modulate Oscillator 1 s frequency As in the original OB X there s no way to vary the amount of modulation and the effect will vary from voice to voice Press the mod switch again and the red LED will light This engages F Env or filter envelope modulation This routes the filter envelope to the frequency of Oscillator 2 as found on the OB Xa and OB 8 T...

Page 32: ... also used a CEM3320 for its 2 pole and 4 pole filter All of these are available from the OB X8 s front panel The Filter section To hear the effect of the OB X8 filter 1 Recall the basic preset by holding down write and pressing manual The X filter is selected by default Switch to the Xa 2 pole by press ing the type switch once Switch to the Xa 4 pole by pressing the type switch a second time 2 In...

Page 33: ... controls the amount of positive modulation that the Filter Envelope will have on the filter frequency This same control also determines the amount of positive filter envelope modulation on Oscillator 2 if the F Env function is on Type The type switch is used to select between the three different filter modes The switch has two LEDs so that the three states can be indi cated The yellow LED on the ...

Page 34: ... OB X8 keeps the simple on off switches on the front panel but provides continuous level control for each oscillator on Page 2 with a range of 0 off to 127 max and the same level as the original instruments on position The equiva lent level of Oscillator 2 s Half switch can be achieved by setting the Page 2 Oscillator 2 level to 49 Similarly the Half level for Noise which was only available on the...

Page 35: ...ed to their destinations The Envelopes This is one of the most important aspects of a synthesized sound With out an envelope the filter would be static and unchanging It would stay open or closed by a fixed amount that wouldn t change over the duration of a sound That s not very expressive or interesting to listen to and it s not how most real world instruments behave In general sounds produced by...

Page 36: ...eresting sonically and it s not typi cally how instruments behave in the real world To give you a real world example the main difference between the sound of the wind and the sound of a snare drum is that they have very different volume envelopes Otherwise they are essentially both white noise Wind has a relatively slow attack a long sustain and a long decay and release A snare drum has a sharp at...

Page 37: ...The higher the setting the longer the decay Percussive sounds such as synth bass typically have shorter decays and a generous amount of filter resonance Sustain Sets the filter cutoff frequency for the sustained portion of the sound The sound will stay at this filter frequency for as long as a note is held on the keyboard Release Sets the release time of the envelope This controls how quickly the ...

Page 38: ...o to hear its effect first set the Volume Envelope s Release value to 60 10 Now repeatedly strike and release a note on the keyboard as you turn the Filter Envelope s release knob clockwise and counterclockwise Notice how the note fades out faster or slower as you change the Release value 11 Continue experimenting with various Filter Envelope settings while you adjust the Filter Envelope s Modulat...

Page 39: ...ed To hear the effect of the Volume Envelope 1 Recall the basic program by holding down write and pressing manual 2 Repeatedly strike a note on the keyboard as you turn the Volume Enve lope s attack knob clockwise Notice how the attack becomes slower and more gradual the further you turn the knob 3 Reset the attack knob to zero 4 Next repeatedly strike a note on the keyboard as you turn the Volume...

Page 40: ...main panel An additional LFO Vibrato LFO is controlled in the Lever Box and is described in another section The front panel parameters allow the selection of one of five waveforms Sine Square S H sample hold Saw Up pressing Sine and Square and Saw Down pressing Square and S H Pressing any individual Waveform switch should turn off the other two Waveform switches regardless of the previous selectio...

Page 41: ... 8 and different phases the OB X Xa square wave is negative going while the OB 8 is positive As a bonus all of the many new modulation features added to the OB 8 such as the additional waveforms triggered LFO delayed modulation quantized modulation and so on can be applied to the OB X Xa LFO mode allowing for a wider range of modulation possibilities than were available on any of the three legacy ...

Page 42: ...e Destination 1 bus any of the destinations or any combination of them may be selected simultaneously Depth 2 Sets the overall modulation depth for the following three modulation destinations PWM 1 Routes the Modulation LFO to Pulse Width of Oscillator 1 PWM 2 Routes the Modulation LFO to Pulse Width of Oscillator 2 Volume Routes the Modulation LFO to the final VCA where voices are summed The effe...

Page 43: ... Volume Master Volume is a global control for the overall volume It controls the volume level for the Left Mono and Right rear panel outputs as well as the front headphone jack Vol Balance This has two functions depending on whether Split or Double is engaged When neither Split nor Double are engaged when using a single preset Vol Balance functions as a programmable volume control for each preset ...

Page 44: ... now latched until the hold switch is pressed again the LED will turn off If fewer than 8 notes were latched you can continue to play these free voices while the held notes sustain indefinitely You can play a new note or series of notes while previous notes are latched as above and hit hold once The LED will stay lit and the previ ously held notes are released and the new note or notes are now lat...

Page 45: ...ions as a monophonic keyboard would i e with low note priority playing the held chord Any notes played above the lowest note or any notes played above the range enabled for the Chord feature will play normally with any remaining available voices Chord Hold Additionally the chord can be made to latch i e continue to sustain the held notes at the transposed note after the key is released To activate...

Page 46: ...e display as well The Chord Limit parameter is also available on Page 2 Master Tune Keyboard only This knob is used to globally tune the synth up or down one semitone center 440Hz On the Module Master Tune is found in the Global menu Control Section The Control section contains overall parameters that can affect a preset Since Control parameters are saved per preset Doubles or Splits can have diff...

Page 47: ...e synthesizers The OB Xa had over 150 trim pots that had to be calibrated by a technician Since the OB X8 is able to automate all of the calibration to a high degree of precision to impart the same flavor to the OB X8 the Vintage knob lets you dial in progressively more of this calibration and compo nent variation as you go from very stable with the control at minimum to a highly variable state wi...

Page 48: ...modulation This control allows for more expressive sounds On the Module Velocity is found in the Page 2 menu Touch Keyboard only Touch or aftertouch is a performance feature that allows you to add modulation to a sound by applying additional pressure to a key after the key is already pressed The greater the pres sure that s applied the more modulation will result The OB X8 provides monophonic or c...

Page 49: ...hat one note can be powered by as many as eight voices depending on how many you choose to use With up to 16 oscillators powering a single note 2 oscillators per voice x 8 voices you can create some very dense speaker rattling sounds Unison gives you control over how many voices to stack as well as the amount of detuning between the oscillators To use Unison 1 Press the unison switch Unison mode i...

Page 50: ... detune is applied the associated LED will light When the parameter is at the center of its range no Detune applied the LED will be off Lever Box Keyboard only The Keyboard s Lever Box contains most of the OB X8 performance controls including the pitch and modulation levers It also contains an arpeggiator and an independent LFO dedicated to pitch vibrato It is good to note that many of the Lever B...

Page 51: ...and upper buttons independently assign the Mod or Arp to the Lower or Upper sections when in Split or Double All other Lever Box functions operate in the same manner regardless of the mode switch setting Using the Pitch and Mod Levers The OB X8 has a Pitch lever and a Mod lever You can use these controls to enhance live performance by bending notes and adding modulation in real time as you play In...

Page 52: ...ng preference The range is up to 12 semitones 1 octave Many musicians use a range of 2 semitones a whole step since this is the bend range of many acoustic instruments For guitar whammy bar effects you many wish to set a wider range When the up amount switch is off the pitch lever bend range is always 2 semitones up down a whole step But you can set the bend range to a different interval When the ...

Page 53: ...ge this to other waveshapes square saw up sample and hold saw down noise using the Page 2 vibrato lfo wave parameter Note that because several of the controls in the Lever Box are used for both modulation and the arpeggiator you need to use the mode switch to select mod in order to set up modulation rate depth and destination for the Vibrato LFO The depth knob in the Lever Box controls the initial...

Page 54: ...ob to locate the vibrato lfo wave parameter 3 Use the value knob to select the desired waveshape 4 Press the page 2 switch again to exit About Lever Box Mode Keyboard and Module The mode switch determines which set of controls Mod or Arp are active via the shared Lever Box controls Lever Box Mode Switch The mode switch can be pressed at any time to enter either of the Lever Box modes Mod or Arp so...

Page 55: ...OSC 2 ONLY Selects Osc 2 as the sole destination for Pitch Lever bends Osc 1 is not affected by the Pitch lever AMOUNT This switch is used to set and activate a custom bend inter val By default the Pitch lever has a bend range of one whole step up and down when the amount switch is off and one octave up and down when the amount switch is on However by holding down the amount switch and pressing an...

Page 56: ...te of the Arpeggiator indepen dently from Mod Rate ARPEGGIATE The arpeggiate switch starts the arpeggiator If no keys are held no arpeggiation will be heard Arp Mode defaults to the following settings arpeggiate off direction up play mode kbd keyed only HOLD This switch allows the voices that are latched by the master hold switch to be arpeggiated To use this feature hold a selection of keys to be...

Page 57: ...n lit the held or latched notes will arpeggiate in the order they were played DOWN UP both engaged With both the down and up switches pressed both LEDs lit the arpeggiated notes will cycle between forward and reverse order DOWN Up both OFF When lit Arpeggiator will play the arpeg giated notes in random order TRANSPOSE DOWN Press to transpose any played or held arpeg gio down one octave TRANSPOSE U...

Page 58: ...iate switches together and press up to 5 keys on the keyboard Each pressed key will sequentially set the transposition for the Arp Transpose Select setting If fewer than 5 notes are played while mode and arp are held the remaining transposi tions are unaffected The transpose amounts are always upward relative to the lowest note C0 To set to the default values Hold the mode and arpeggiate switches ...

Page 59: ...es in addition to the Page 2 display The Page 2 switch accesses Page 2 parameters 1 Osc 1 Level The Osc 1 level control allows you to set the specific volume level for Oscillator 1 when the osc 1 panel switch in the Filter section is engaged The default level value is 127 which matches the only level provided on the original OB synths 2 Osc 2 Level The Osc 2 level control allows you to set the spe...

Page 60: ...r 2 s sawtooth wave Both forms of X Mod can be used simultane ously 8 Voice Detune Range This parameter detunes voices relative to one another by a fixed amount The amount of shift is the same for Osc 1 and Osc 2 and does not affect the octave tracking i e if a voice is 20 cents sharp both oscillators over the entire range of the keyboard will be 20 cents sharp 9 Unison Voices The original OB synt...

Page 61: ...ter outputs Available types are OB X SEM 2 Pole Low pass SEM 2 Pole High pass SEM 2 Pole Band pass SEM 2 Pole Notch OB Xa 8 2 Pole Low pass OB Xa 8 4 Pole Low pass 12 Filter Keybd Track Although the original Oberheim poly synths only allowed for on off keyboard tracking of filter frequency the OB X8 allows adjustment of keyboard tracking from 0 127 or 0 100 or 0 1V Octave 13 Envelope Type This par...

Page 62: ...resent the most common user settings of the OB 8 pan pots 4L 4R voices 1 4 panned hard left voices 5 8 panned hard right PingPong voices 1 3 5 7 hard left 2 4 6 8 hard right Splayed voice 1 hard left voice 8 hard right voices 2 7 gradually moving from left to right Spread alternates voices L R with them gradually increasing the distance of L R and Mono all voices center 16 Pan Width The Pan Width ...

Page 63: ...O continues to freerun the retriggering is independent for voices 1 4 and 5 8 The trigger point of the waveform is at its beginning of each waveform if the lfo trig point parameter is set to zero When the lfo trig point is set to maximum the LFO waveform will retrigger at the 50 point of its cycle Since the S H and Sampled Vib LFO settings sample on the falling edge of the square wave LFO it is ne...

Page 64: ... for voices 1 4 and 5 8 will no longer be synchronized 23 Vibrato LFO Wave This parameter allows selection of the Vibrato LFO waveform as found on the Lever Box Available waveforms are Triangle Square Saw Up Sample and Hold Saw Down Noise The OB 8 was also able to select these vibrato waveforms but through a cumbersome method of holding the pitch bend lever while pulling up on the Depth knob 24 Mo...

Page 65: ...llows for fade out rather than fade in modulation enve lope shapes 32 Mod 2 Quantize This parameter will allow the Mod 2 path to be quantized to semitones For non pitched destinations such as pulse width this is the equivalent of quantizing the modulation to 1 12 of a volt steps 33 Osc 1 Mod 2 Invert Sets LFO to OSC 1 pulsewidth 180 degrees out of phase relative to OSC 2 pulsewidth mod 34 Mod 2 En...

Page 66: ...des In Equal Time mode portamento is linear but adjusts time automatically to be the same regardless of interval When Portamento speed is at max the time is about 2 4 seconds At 12 o clock on the knob the speed is about 0 4 seconds Mutually exclusive with bend and exponential modes Portamento Bend mode functions as though the interval that the porta mento is moving from is always the same In use i...

Page 67: ...y in which the held chord is only played when a key is played on the keyboard If set to Infinite then the held Chord will continue to sound even after the key is released 41 Bend Lever Amount Use this parameter to limit the range of the Bend lever from to 12 semitones This parameter can also be set by holding the AMOUNT switch in the Lever Box and pressing a key from C0 to C1 42 Velocity Off Amp F...

Page 68: ...nd Lower and pressing the desired key 4 Upper Transpose As above allows transposition of the upper preset by three octaves The Upper preset can also be transposed downward or upward relative to C2 by pressing and holding Split and Upper and pressing the desired key 5 Lower Detune Allows the Lower preset to be Detuned against the Upper preset by 50 cents The Lower Detune can also be set by hold ing...

Page 69: ... parameters are available when Split or Double is enabled and Upper and Lower deselected in the Lever Box 1 Balance Allows for adjustment to the volume balance between the Upper and Lower presets used in the Double program 2 Lower Transpose Allows the Lower preset to be transposed by three octaves in semitones The Lower preset can also be transposed upward relative to C0 by pressing and holding Sp...

Page 70: ... or Double program both presets 8 Lever Box Params Selects saved Lever Box settings from either the Upper Lower or Double program both presets 9 Arp Params Selects saved Arpeggiator settings from either the Upper Lower or Double program 10 Arp Assign Off Lower Upper Lower Upper Sets which layer of a Double program Lower Upper or Lower Upper that the Arpeggiator affects Defaults to Lower Upper 11 M...

Page 71: ...et to bend up one octave 4 OSC 1 2 pulse width Hold oscillator 1 or 2 pulse and turn pw to set width of pulse on each oscillator 5 Chord Keyboard Range Hold chord and press a key on the keyboard to set the highest note for chord playback Keys above can be played independently of chord 6 Bend Box Pitch Bend Amount With lever box mode set to mod hold amount and press a key C0 C1 to set pitch bend am...

Page 72: ...on a synth Many great synth bass sounds consist of a single oscillator a bit of filter resonance the proper envelope and that s it So start with the Basic Program and go from there Short Version To create a classic synth bass 1 Recall the basic program by holding down write and pressing manual 2 Press down in the transpose section to lower to overall pitch 3 Set filter cutoff to 25 4 Set filter re...

Page 73: ...square wave is a good starting point too but sounds differ ent than the sawtooth because of its different harmonic content The sawtooth has even and odd numbered harmonics and the square wave has odd numbered harmonics Perform a web search on this if you want to learn more The triangle wave both waveform switches off has very few harmon ics It s useful used alone for its pure tone or in combinatio...

Page 74: ...ou can open the filter wider using the Filter modulation knob so you don t have to turn the cutoff knob by hand To adjust the filter envelope 1 In the Filter section turn the Filter s modulation knob to a value of 70 2 Play a low note on the keyboard Instant synth bass Notice how the sound has changed The Filter Envelope is controlling filter cutoff by the amount you set with the modulation knob 3...

Page 75: ...ck all eight of the OB X8 s voices Now you know how to create a simple synth bass program using the most essential synthesizer components of the OB X8 the oscillators the filters and the envelopes Using just these three things you can create an enormous variety of sounds Keep experimenting with them and if you like what you ve created save the programs in one of the user banks See Saving a Program...

Page 76: ...exact shape of the Filter Envelope determines the rise and fall of the frequency This create the slight pitch variation at the beginning of the sound the pitch blip 3 Set Filter modulation to somewhere between 40 and 50 4 In the filter envelope section experiment with different values for the decay parameter The controls how quickly the pitch falls 5 Play some notes in the upper range of the keybo...

Page 77: ...sing manual Oscillator 1 is set to sawtooth by default 2 In the Oscillator section press the sync switch 3 Set Oscillator 2 frequency to 4 This will allow for a wide range of pitch modulation 4 In the Oscillator section press f env This enables modulation of Oscil lator 2 by the Filter Envelope 5 In the filter section set the cutoff to 70 and resonance to 30 6 Set the Filter modulation amount to 8...

Page 78: ...gine what you can create by experimenting more with the oscillators filter envelopes LFOs and modulation It s often useful to start with a simple sound and make it progressively more complex saving edited versions as you go so that you can retrace your steps and branch off at different points in the sound design process if you want Enjoy exploring the OB X8 ...

Page 79: ...pped running Check the arp clock setting in global to ensure the OB X8 is set to internal Or if set to clock input midi din clock or midi usb clock make sure the OB X8 is receiving external clock If some of the programs sound different than usual In the Global menu check alt tuning scale and make sure it s set to equal temperament Also check the Mod Box depth position The Mod Box vibrato LFO could...

Page 80: ...pond to its controls Make sure local control is on in the global menu If MIDI System Exclusive data is not transmitted received Make sure that the midi sysex cable setting in the global menu is set to usb or midi depending on which you are using to transmit or receive MIDI messages If the OB X8 plays out of tune Check the master tune parameter in the global menu to make sure it s set to 0 You may ...

Page 81: ... scroll knob to select reset globals then press write Globals are reset You can now can play the OB X8 again Contacting Technical Support If you are still having a problem with the OB X8 contact Technical Support at support oberheim com Please include the purchase date of your OB X8 its serial number and the operating system version Press the global button to see this at the top right of the main ...

Page 82: ...course of action for getting your OB X8 repaired For your own protection as well as ours please do not return any product to Oberheim without a return authorization RA number To issue an RA number Technical Support needs Your name Your return address Your email address A phone number where you can be reached Your OB X8 s serial number The date of purchase and where purchased If you need to return ...

Page 83: ...normal and you can play the OB X8 again Calibrating the Levers Keyboard only To calibrate the Pitch and Mod levers 1 Press the global button 2 Use the select knob to locate the lever calibration command then follow the instructions in the display 3 When finished the Global menu is automatically exited Resetting the Global Parameters If you re trying to track down a problem it s sometimes a good id...

Page 84: ...mputer using a USB cable 2 Open your MIDI librarian software SysEx Librarian etc and config ure it to receive SysEx messages 3 Press the global button on the OB X8 4 Use the scroll knob to select MIDI Preset Change Use the value knob to select Transmit Only or Transmit Receive 5 Use the scroll knob to select midi sysex cable then use the value knob to choose usb 6 Use the scroll knob to select sen...

Page 85: ...group or bank is exported to the other OB X8 Dumped programs will load back into the same bank and program location in memory when received by the OB X8 via MIDI Importing Programs and Banks You can use a MIDI librarian application such as such as SysEx Librar ian for Macintosh or MIDI OX for Windows to transmit exported program or banks back into your OB X8 You will need a computer and an appropr...

Page 86: ...ian open the programs and or banks you want to send 7 Transmit the programs The OB X8 should load them They will replace any existing programs in those same memory locations on the synth Programs will load back into the same bank and program locations from which they were originally exported ...

Page 87: ... 8 P 4 SEM Sizzle G 8 P 5 Delayed Flight G 8 P 6 Running Plucks G 8 P 7 BlowOut Bass G 8 P 8 Comes a Knockin G 9 P 1 Voyet Sqrx G 9 P 2 Slide Home G 9 P 3 Pong G 9 P 4 June Gloom G 9 P 5 Blenderizer G 9 P 6 Strummer G 9 P 7 Pedal Harp G 9 P 8 Thick Xa Bass G 10 P 1 Fountaysia G 10 P 2 NotchyWash G 10 P 3 Rossum8or G 10 P 4 Mallet Plonk G 10 P 5 Sparkle Plenty G 10 P 6 LittleSequence G 10 P 7 Body ...

Page 88: ... 6 P 7 Long Chimes G 6 P 8 Percussive Solo G 7 P 1 Comp Horns G 7 P 2 Bells G 7 P 3 Four Pole Strings 2 G 7 P 4 Soft Piano G 7 P 5 Birds G 7 P 6 Vocal Wow G 7 P 7 Marimbas G 7 P 8 Rock Unison G 8 P 1 Delayed Octave G 8 P 2 Trig Pulse Width G 8 P 3 Poly Portamento G 8 P 4 Steel Drums G 8 P 5 Square Mod G 8 P 6 Comp Synth G 8 P 7 Unison Portamento G 8 P 8 Delay Mod G 9 P 1 Swell Horns G 9 P 2 Sitar ...

Page 89: ...Organ G 2 P 6 OB SX Choir G 2 P 7 Harp G 2 P 8 Calliope G 3 P 1 Calculator G 3 P 2 Mellow Wow G 3 P 3 Fiddle G 3 P 4 Reed Piano G 3 P 5 Double Reed G 3 P 6 Sax G 3 P 7 Marimba G 3 P 8 PW Rezz G 4 P 1 Trumpets G 4 P 2 Pop Organ G 4 P 3 Slow Strings G 4 P 4 Rezz Sweep G 4 P 5 Combo Organ G 4 P 6 SX 6 G 4 P 7 SX 7 G 4 P 8 SX 8 G 5 P 1 Ensemble Trmpets G 5 P 2 Poly Portamento G 5 P 3 Strings G 5 P 4 A...

Page 90: ...G 3 P 6 Narrow Vib G 3 P 7 Farr s Funk G 3 P 8 Stab Lead G 4 P 1 Trumpet G 4 P 2 Sample and Hold G 4 P 3 Poly Portamento G 4 P 4 Metal Percussion G 4 P 5 Windy G 4 P 6 Square Wave Mod G 4 P 7 Slow Glide G 4 P 8 Spacey Xmod SPLIT Airhorn Split Buzzbomb Split Oberheim Split Moody Split Mallet Split Drums Split Steppy Wurli Split Mellow Split Progrock Split C avinete Split Fountasy Split Vocalize Spl...

Page 91: ...d on the twelfth root of two 2 Harmonic Series MIDI notes 36 95 reflect harmonics 2 through 60 based on the funda mental of A 27 5 Hz The low C on a standard 5 octave keyboard acts as the root note 55Hz and the harmonics play upwards from there The remaining keys above and below the 5 octave range are filled with the same intervals as Carlos Harmonic 12 Tone that follows 3 Carlos Harmonic Twelve T...

Page 92: ... very narrow palate of good chords to choose from C 1 1 261 625 Hz 1 1 256 243 9 8 32 27 81 64 4 3 729 512 3 2 128 81 27 16 16 9 243 128 9 Just Intonation in A with 7 Limit Tritone at D A rather vanilla 5 limit small interval JI except for a single 7 5 tritone at D which offers some nice possibilities for rotating around bluesy sevenths A 1 1 440 Hz 1 1 16 15 9 8 6 5 5 4 7 5 3 2 8 5 5 3 9 5 15 8 1...

Page 93: ...ative way to incorporate the inevitable line hum into his scale Bb B 1 1 60 Hz 1 1 1 1 9 8 7 6 5 4 4 3 11 8 3 2 3 2 7 4 7 4 15 8 14 Yamaha Just Major C When Yamaha decided to put preset microtunings into their FM synth product line they selected this and the following tuning as representative just intonations As such they became the de facto introduction to JI for many people Just Major gives pref...

Page 94: ... organs to perform glissando like passages G 1 1 392 Hz MIDI note 67 1 1 81 80 33 32 21 20 16 15 12 11 11 10 10 9 9 8 8 7 7 6 32 27 6 5 11 9 5 4 14 11 9 7 21 16 4 3 27 20 11 8 7 5 10 7 16 11 40 27 3 2 32 21 14 9 11 7 8 5 18 11 5 3 27 16 12 7 7 4 16 9 9 5 20 11 11 6 15 8 40 21 64 33 160 81 17 Arabic 12 Tone A 12 tone approximation of an Arabic scale which appears in some elec tronic keyboards desig...

Page 95: ...ome unusual relationships note 0 0 note 1 63 note 2 189 note 3 253 note 4 379 note 5 505 note 6 568 note 7 695 note 8 758 note 9 884 note 10 947 note 11 1074 note 12 1200 19 12 Out of 31 tET Meantone Eb G note 0 0 note 1 77 note 2 194 note 3 310 note 4 387 note 5 503 note 6 581 note 7 697 note 8 774 note 9 890 note 10 1006 note 11 1084 note 12 1200 ...

Page 96: ...86 Ratio 8 5 JUST 69 Cents 884 358713 Ratio 5 3 JUST 70 Cents 996 089998 Ratio 16 9 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 21 Lute tuning of Giovanni Maria Artusi 1603 1 4 comma w Acc 1 2 way Naturals 60 Cents 0 Ratio 1 1 JUST 61 Cents 96 578 Ratio 8607 8140 62 Cents 193 157 Ratio 2889 2584 63 Cents 289 735 Ratio 11687 9886 64 Cents 386 313714 Ratio 5 4 JUST 65 Cent...

Page 97: ...5 Ratio 15708 9929 69 Cents 895 1125 Ratio 14857 8859 70 Cents 998 045 Ratio 12503 7025 71 Cents 1090 225 Ratio 18484 9847 72 Cents 1200 Ratio 2 1 JUST 23 Bulgarian Bagpipe tuning Empirically Measured 0 Cents 0 Ratio 1 1 JUST 1 Cents 66 Ratio 5427 5224 2 Cents 202 Ratio 1925 1713 3 Cents 316 Ratio 11586 9653 4 Cents 399 Ratio 4965 3943 5 Cents 509 Ratio 7451 5553 6 Cents 640 Ratio 13435 9283 7 Cen...

Page 98: ...10686 9335 4 Cents 312 Ratio 11873 9915 5 Cents 390 Ratio 11636 9289 6 Cents 468 Ratio 13024 9939 7 Cents 546 Ratio 12433 9070 8 Cents 624 Ratio 11605 8093 9 Cents 702 Ratio 14999 9999 10 Cents 780 Ratio 3471 2212 11 Cents 858 Ratio 15361 9358 12 Cents 936 Ratio 11467 6678 13 Cents 1014 Ratio 17889 9959 14 Cents 1092 Ratio 12599 6705 15 Cents 1170 Ratio 18593 9459 16 Cents 1248 Ratio 14957 7274 17...

Page 99: ...51 6 Cents 382 8 Ratio 11690 9371 7 Cents 446 6 Ratio 9007 6959 8 Cents 510 4 Ratio 1500 1117 9 Cents 574 2 Ratio 13547 9723 10 Cents 638 Ratio 12529 8667 11 Cents 701 8 Ratio 5584 3723 12 Cents 765 6 Ratio 9281 5964 13 Cents 829 4 Ratio 15760 9761 14 Cents 893 2 Ratio 1047 625 15 Cents 957 Ratio 9629 5540 16 Cents 1020 8 Ratio 16551 9178 17 Cents 1084 6 Ratio 16263 8692 18 Cents 1148 4 Ratio 1358...

Page 100: ... 13 Cents 456 287 Ratio 2089 1605 14 Cents 491 386 Ratio 8563 6447 15 Cents 526 485 Ratio 6117 4513 16 Cents 561 584 Ratio 148 107 17 Cents 596 683 Ratio 2895 2051 18 Cents 631 782 Ratio 7627 5295 19 Cents 666 881 Ratio 13901 9457 20 Cents 701 98 Ratio 3 2 just 21 Cents 737 079 Ratio 5477 3578 22 Cents 772 178 Ratio 6981 4469 23 Cents 807 277 Ratio 14613 9167 24 Cents 842 376 Ratio 10660 6553 25 C...

Page 101: ...2 JUST 62 Cents 111 731285 Ratio 16 15 JUST 63 Cents 203 910002 Ratio 9 8 JUST 64 Cents 231 174094 Ratio 8 7 JUST 65 Cents 266 870906 Ratio 7 6 JUST 66 Cents 315 641287 Ratio 6 5 JUST 67 Cents 342 905379 Ratio 128 105 68 Cents 359 472338 Ratio 16 13 JUST 69 Cents 386 313714 Ratio 5 4 JUST 70 Cents 470 780907 Ratio 21 16 JUST 71 Cents 498 044999 Ratio 4 3 JUST 72 Cents 551 317942 Ratio 11 8 JUST 73...

Page 102: ...1 955001 Ratio 3 2 JUST 68 Cents 795 558015 Ratio 19 12 JUST 69 Cents 884 358713 Ratio 5 3 JUST 70 Cents 999 468017 Ratio 57 32 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 30 John Chalmers JI 3 15 16 17 18 19 20 21 on 1 1 15 20 on 3 2 May 2 1997 60 Cents 0 Ratio 1 1 JUST 61 Cents 111 731285 Ratio 16 15 JUST 62 Cents 216 686695 Ratio 17 15 JUST 63 Cents 315 641287 Ratio 6...

Page 103: ...45 JUST 68 Cents 813 686286 Ratio 8 5 JUST 69 Cents 907 289301 Ratio 76 45 JUST 70 Cents 996 089998 Ratio 16 9 JUST 71 Cents 1107 821284 Ratio 256 135 72 Cents 1200 Ratio 2 1 JUST 32 Chinese scale 4th century 0 Cents 0 Ratio 1 1 JUST 1 Cents 99 2 Ratio 3735 3527 2 Cents 199 5 Ratio 11126 9915 3 Cents 296 7 Ratio 9181 7735 4 Cents 398 Ratio 10405 8268 5 Cents 492 9 Ratio 448 337 6 Cents 595 2 Ratio...

Page 104: ...a 1 Fabio Colonna lived in Naples and published a treatise in 1618 called La Sambuca Lincea which included a description of the instrument by that name which he built on commission from Scipione Stella who had had the opportunity in 1594 to examine Vincentino s Archicembalo a 31 tone per octave not equal tempered keyboard instrument 60 Cents 0 Ratio 1 1 JUST 61 Cents 70 672427 Ratio 25 24 JUST 62 ...

Page 105: ...or his Megalyra Family Darreg was one of the great modern theorists of just intonation 60 Cents 0 Ratio 1 1 JUST 61 Cents 70 672427 Ratio 25 24 JUST 62 Cents 111 731285 Ratio 16 15 JUST 63 Cents 182 403712 Ratio 10 9 JUST 64 Cents 203 910002 Ratio 9 8 JUST 65 Cents 274 582429 Ratio 75 64 JUST 66 Cents 315 641287 Ratio 6 5 JUST 67 Cents 386 313714 Ratio 5 4 JUST 68 Cents 498 044999 Ratio 4 3 JUST 6...

Page 106: ...6984 Ratio 32 19 JUST 70 Cents 996 089998 Ratio 16 9 JUST 71 Cents 1095 04459 Ratio 32 17 JUST 72 Cents 1200 Ratio 2 1 JUST 38 Almost Equal 12 tone Subset of Duodenarium 60 Cents 0 Ratio 1 1 JUST 61 Cents 92 178716 Ratio 135 128 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 296 088718 Ratio 1215 1024 64 Cents 405 866283 Ratio 512 405 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 609 776284 Ratio 64 45...

Page 107: ...Ratio 5 3 JUST 70 Cents 1017 596288 Ratio 9 5 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 40 Bali Java Slendro Siam 7 empirical 0 Cents 0 Ratio 1 1 JUST 61 Cents 111 731285 Ratio 16 15 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 315 641287 Ratio 6 5 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 519 551289 Ratio 27 20 JUST 67 Cen...

Page 108: ...Ratio 14076 8389 10 Cents 1019 Ratio 12585 6986 11 Cents 1086 Ratio 16205 8654 42 Erlangen revised 60 Cents 0 Ratio 1 1 JUST 61 Cents 92 178716 Ratio 135 128 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 294 134997 Ratio 32 27 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 590 223716 Ratio 45 32 JUST 67 Cents 701 955001 Ratio 3 2 JUST 68 Cents 794 133717 Ratio 40...

Page 109: ... Ratio 5 3 JUST 70 Cents 976 537429 Ratio 225 128 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 44 Fokker s 7 limit 12 tone Just Scale 60 Cents 0 Ratio 1 1 JUST 61 Cents 119 442808 Ratio 15 14 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 266 870906 Ratio 7 6 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 590 223716 Ratio 45 32 JUST 67 Ce...

Page 110: ...39 84 JUST 70 Cents 985 798925 Ratio 205 116 71 Cents 1049 362941 Ratio 11 6 JUST 72 Cents 1200 Ratio 2 1 JUST 46 Gamelan Udan Mas approx s6 p6 p7 s1 p1 s2 p2 p3 s3 p4 s5 p5 60 Cents 0 Ratio 1 1 JUST 61 Cents 0 Ratio 1 1 JUST 62 Cents 182 403712 Ratio 10 9 JUST 63 Cents 266 870906 Ratio 7 6 JUST 64 Cents 427 372572 Ratio 32 25 JUST 65 Cents 510 367002 Ratio 47 35 JUST 66 Cents 571 725653 Ratio 32 ...

Page 111: ...ents 203 910002 Ratio 9 8 JUST 63 Cents 266 870906 Ratio 7 6 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 582 512193 Ratio 7 5 JUST 67 Cents 701 955001 Ratio 3 2 JUST 68 Cents 764 915905 Ratio 14 9 JUST 69 Cents 884 358713 Ratio 5 3 JUST 70 Cents 968 825906 Ratio 7 4 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST ...

Page 112: ...8 825906 Ratio 7 4 JUST 70 Cents 996 089998 Ratio 16 9 JUST 71 Cents 1200 Ratio 2 1 JUST 49 Michael Harrison Piano Tuning for Revelation 2001 Original 1 1 F here it is set to C 60 Cents 0 Ratio 1 1 JUST 61 Cents 27 264092 Ratio 63 64 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 176 64591 Ratio 567 512 64 Cents 407 820003 Ratio 81 64 JUST 65 Cents 470 780907 Ratio 21 16 JUST 66 Cents 611 730005...

Page 113: ...Cents 405 866283 Ratio 512 405 69 Cents 478 49243 Ratio 675 512 70 Cents 498 044999 Ratio 4 3 JUST 71 Cents 590 223716 Ratio 45 32 JUST 72 Cents 609 776284 Ratio 64 45 JUST 73 Cents 680 448711 Ratio 40 27 JUST 74 Cents 701 955001 Ratio 3 2 JUST 75 Cents 772 627428 Ratio 25 16 JUST 76 Cents 792 179997 Ratio 128 81 JUST 77 Cents 884 358713 Ratio 5 3 JUST 78 Cents 905 865003 Ratio 27 16 JUST 79 Cents...

Page 114: ...ts 905 865003 Ratio 27 16 JUST 70 Cents 1017 596288 Ratio 9 5 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 52 Carnatic Gamut Kuppuswami Carnatic Music and the Tamils p v 60 Cents 0 Ratio 1 1 JUST 61 Cents 98 954592 Ratio 18 17 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 315 641287 Ratio 6 5 JUST 64 Cents 394 347297 Ratio 54 43 JUST 65 Cents 498 044999 Ratio 4 3 JUST ...

Page 115: ...ts 883 Ratio 6793 4079 70 Cents 997 Ratio 4863 2734 71 Cents 1092 Ratio 12599 6705 72 Cents 1207 Ratio 15117 7528 54 7 limit 12 tone Scale 60 Cents 0 Ratio 1 1 JUST 61 Cents 111 731285 Ratio 16 15 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 266 870906 Ratio 7 6 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 582 512193 Ratio 7 5 JUST 67 Cents 701 955001 Rat...

Page 116: ...Ratio 12 7 JUST 70 Cents 968 825906 Ratio 7 4 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 56 Kurzweil Just with Natural b7th is Sauveur Just with 7 4 60 Cents 0 Ratio 1 1 JUST 61 Cents 70 672427 Ratio 25 24 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 315 641287 Ratio 6 5 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 590 223716 R...

Page 117: ...ST 65 Cents 357 095901 Ratio 896 729 66 Cents 435 084095 Ratio 9 7 JUST 67 Cents 498 044999 Ratio 4 3 JUST 68 Cents 561 005903 Ratio 112 81 JUST 69 Cents 638 994097 Ratio 81 56 JUST 70 Cents 701 955001 Ratio 3 2 JUST 71 Cents 764 915905 Ratio 14 9 JUST 72 Cents 842 904099 Ratio 729 448 73 Cents 905 865003 Ratio 27 16 JUST 74 Cents 996 089998 Ratio 16 9 JUST 75 Cents 1059 050902 Ratio 448 243 76 Ce...

Page 118: ...Ratio 75 44 JUST 11 Cents 1088 268715 Ratio 15 8 JUST 12 Cents 1151 229619 Ratio 35 18 JUST 13 Cents 1221 902045 Ratio 875 432 14 Cents 1333 633331 Ratio 175 81 JUST 15 Cents 1425 812047 Ratio 875 384 16 Cents 1537 543332 Ratio 175 72 JUST 17 Cents 1656 986141 Ratio 125 48 JUST 18 Cents 1719 947045 Ratio 875 324 19 Cents 1884 951273 Ratio 1925 648 20 Cents 1923 857046 Ratio 875 288 21 Cents 2035 5...

Page 119: ...atio 1885 1128 70 Cents 963 1899 Ratio 13187 7560 71 Cents 1081 59495 Ratio 1780 953 72 Cents 1200 Ratio 2 1 JUST 60 Rousseau s Monochord Dictionnaire de musique 1768 60 Cents 0 Ratio 1 1 JUST 61 Cents 70 672427 Ratio 25 24 JUST 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 315 641287 Ratio 6 5 JUST 64 Cents 386 313714 Ratio 5 4 JUST 65 Cents 498 044999 Ratio 4 3 JUST 66 Cents 568 717426 Ratio 25 18...

Page 120: ... 99971 Ratio 21454 9951 70 Cents 1545 Ratio 18281 7489 71 Cents 1690 00034 Ratio 5797 2184 72 Cents 1830 00051 Ratio 28347 9850 73 Cents 2049 99952 Ratio 32211 9857 74 Cents 2234 99975 Ratio 36331 9991 75 Cents 2337 00011 Ratio 38073 9871 76 Cents 2400 Ratio 4 1 JUST 62 Vallotti Young Vallotti Version 60 Cents 0 Ratio 1 1 JUST 61 Cents 94 135 Ratio 10487 9932 62 Cents 196 09 Ratio 10851 9689 63 Ce...

Page 121: ...8 5 JUST 69 Cents 884 358713 Ratio 5 3 JUST 70 Cents 1017 596288 Ratio 9 5 JUST 71 Cents 1088 268715 Ratio 15 8 JUST 72 Cents 1200 Ratio 2 1 JUST 64 LaMonte Young s Well Tuned Piano 60 Cents 0 Ratio 1 1 JUST 61 Cents 176 64591 Ratio 567 512 62 Cents 203 910002 Ratio 9 8 JUST 63 Cents 239 606814 Ratio 147 128 64 Cents 470 780907 Ratio 21 16 JUST 65 Cents 443 516816 Ratio 1323 1024 66 Cents 674 6909...

Page 122: ...l parameters while CCs are limited to a range of 128 Param Param Receive Off CC NRPN Sets the method by which parameter changes are received via MIDI As with transmission NRPNs are the preferred method MIDI Control Enable Off On Sets the OB X8 s ability to receive MIDI messages When set to On the synth will respond to MIDI control lers including pitch wheel mod wheel pedal and volume MIDI SysEx Ca...

Page 123: ...vvvvvv Channel Pressure 1110 nnnn 0vvvvvvv 0vvvvvvv Pitch Bend LS Byte then MS Byte Notes 0kkkkkkk Note number 0 127 nnnn Channel number 0 to 15 MIDI channel 1 16 Ignored if MIDI channel set to ALL 0vvvvvvv Value Received Controller Messages Status Second Third Description 1011 nnnn 0000 0001 0vvvvvvv Mod Wheel directly assignable controller 1011 nnnn 0000 0100 0vvvvvvv Foot Controller directly as...

Page 124: ...0vvvvvvv Value Transmitted Controller Messages Status Second Third Description 1011 nnnn 0000 0001 0vvvvvvv Mod Wheel 1011 nnnn 0000 0010 0vvvvvvv Breath Controller When assigned to Pedal CV 1011 nnnn 0000 0100 0vvvvvvv Foot Controller When assigned to Pedal CV 1011 nnnn 0000 1101 0vvvvvvv Expression When assigned to Pedal CV 1011 nnnn 0000 0111 0vvvvvvv Volume When assigned to Pedal CV 1011 nnnn ...

Page 125: ...MASTER VOLUME 0 127 8 PROGRAM VOLUME 0 127 9 TRANSPOSE UP DOWN 0 2 10 PAGE 2 PANWIDTH 0 2 11 EXPRESION PEDAL 0 127 12 OSC 1 XMOD 0 1 12 OSC 1 FILTER ENV MOD 0 1 13 PAGE 2 OSC XMOD AMT 0 127 15 OSC 1 FREQ 0 63 16 0SC 2 FREQ 0 63 17 OSC 2 DETUNE 0 63 18 PAGE 2 VOICE DETUNE RANGE 0 127 19 OSC 1 WAVEFORM 0 3 20 OSC 2 WAVEFORM 0 3 21 OSC 1 PW 0 127 22 OSC 2 PW 0 127 23 OSC SQUARE MODE 0 1 24 OSC 1 SYNC...

Page 126: ...V DECAY 0 255 47 VOLUME ENV SUSTAIN 0 127 48 VOLUME ENV RELEASE 0 255 49 VOLUME ENV VELOCITY ON OFF 0 1 50 ENV TYPE 0 1 51 LFO 1 RATE 0 127 52 LFO 1 SHAPE 0 4 53 LFO 1 DEPTH 1 0 127 54 LFO 1 DEPTH 2 0 127 55 LFO 1 DEST 1 OSC 1 0 1 56 LFO 1 DEST 1 OSC 2 0 1 57 LFO 1 DEST 1 FILTER 0 1 58 LFO 1 DEST 2 PWM 1 0 1 59 LFO 1 DEST 2 PWM 2 0 1 60 LFO 1 DEST 2 VOLUME 0 1 61 LFO PRESSURE 0 1 62 PAGE 2 LFO TYP...

Page 127: ... BOX ARP LOWER 0 1 89 MOD BOX ARP UPPER 0 1 90 ARP TRANSPOSE 0 2 91 PAGE 2 PORTAMENTO MODE 0 66 92 PAGE 2 PORTAMENTO MATCH 0 1 93 PAGE 2 PORTAMENTO QUANTIZE 0 1 94 PAGE 2 PORTAMENTO LEGATO 0 1 95 LOWER UPPER NO SELECT 0 2 96 DATA INCREMENT 1 97 DATA DECREMENT 1 98 NRPN LSB 99 NRPN MSB 100 RPN LSB 101 RPN MSB 102 PAGE 2 LFO 1 TRIGGER 0 1 103 PAGE 2 LFO 1 TRIGGER PHASE 0 127 104 PAGE 2 LFO 1 KBD TRA...

Page 128: ...114 PAGE 2 LFO 1 OSC 1 MOD 2 INVERT 0 1 115 PAGE 2 MOD 2 RAMP TO LFO SPEED 0 1 116 PAGE 2 LFO SHIFT VOICES 5 8 0 2 117 PAGE 2 CHORD KEY LIMIT 0 127 118 PAGE 2 CHORD HOLD MODE 0 1 119 NORMAL SPLIT DOUBLE MODE 0 2 120 ALL SOUND OFF 121 RESET CONTROLLERS 122 LOCAL CONTROL ON OFF 0 1 123 ALL NOTES OFF 124 OMNI MODE OFF 125 OMNI MODE ON 126 MONO MODE ON 127 POLY MODE ON ...

Page 129: ...B 0010 0110 NRPN parameter value LSB CC 0vvv vvvv Parameter value LSB The parameter number can be found in the two tables below one for global parameters and the other for program parameters The parameter numbers and the parameter values are broken into two 7 bit bytes for MIDI transmission the LSB has the seven least significant bits and the MSB has the seven most significant bits though in most ...

Page 130: ...v NRPN parameter value MSB CC 1011 nnnn 0010 0110 0vvvvvvv NRPN parameter value LSB CC 1011 nnnn 0110 0000 0xxxxxxx NRPN parameter value Increment 1011 nnnn 0110 0001 0xxxxxxx NRPN parameter value Decrement 1011 nnnn 0010 0101 0111111 RPN parameter number MSB CC Reset NRPN param eter number when both MSB and LSB received 1011 nnnn 0010 0100 0111111 RPN parameter number LSB CC Reset NRPN param eter...

Page 131: ... OB X8 s control NRPN data It is received and transmitted but not saved as part of a program Name NRPN Range PAGE 2 LFO S H IN 28 0 1 LFO 1 RATE 29 0 127 LFO 1 SHAPE 30 0 4 LFO 1 DEPTH 1 31 0 127 LFO 1 DEPTH 2 32 0 127 LFO 1 DEST 1 OSC 1 33 0 1 LFO 1 DEST 1 OSC 2 34 0 1 LFO 1 DEST FILTER 35 0 1 LFO 1 DEST 2 PWM 1 36 0 1 LFO1 DEST 2 PWM 2 37 0 1 LFO 1 DEST 2 VOLUME 38 0 1 PAGE 2 LFO 1 TRIGGER 39 0 ...

Page 132: ...OWER 78 0 1 MOD BOX LFO 2 UPPER 79 0 1 MOD BOX ARP ON 80 0 1 MOD BOX ARP SPEED 81 0 27 MOD BOX ARP HOLD KBD 82 0 2 MOD BOX ARP DOWN UP 83 0 3 MOD BOX ARP LOWER 84 0 1 MOD BOX ARP UPPER 85 0 1 Name NRPN Range ARP NUMBER OF TRANS POSE INTERVALS 86 0 5 ARP TRANS INTVAL NOTE 0 87 0 120 ARP TRANS INTVAL NOTE 1 88 0 120 ARP TRANS INTVAL NOTE 2 89 0 120 ARP TRANS INTVAL NOTE 3 90 0 120 ARP TRANS INTVAL N...

Page 133: ...AME CHAR 18 120 0 87 PROGRAM NAME CHAR 19 121 0 87 MOD BOX TRANSPOSE UP DOWN 122 0 2 PAGE 2 FILTER KBD TRACK 123 0 127 SPLIT PARAMS UPPER LEVEL UPPER LOWER 1122 1090 0 63 SPLIT PARAMS SPLIT POINT UPPER LOWER 1123 1092 0 127 SPLIT LOWER TRANSPOSE 1093 0 72 SPLIT UPPER TRANSPOSE 1125 0 72 SPLIT LOWER DETUNE 1094 0 64 SPLIT PAN MODE 1076 0 4 SPLIT PAN WIDTH 1077 0 2 SPLIT HOLD CHORD SOURCE 1072 0 2 S...

Page 134: ...quiry Request 1111 0111 End of Exclusive EOX The OB X8 responds with Status Description 1111 0000 System Exclusive SysEx 0111 1110 Non realtime message 0vvv vvvv If MIDI Channel ALL 0vvvvvvv 0111 1111 Otherwise 0vvvvvvv Channel Number 0 15 0000 0110 Inquiry Message 0000 0010 Inquiry Reply 0000 0001 DSI ID 0011 0011 OB X8 ID Family LS 0000 0001 Family MS 0000 0000 Family Member LS 0000 0000 Family ...

Page 135: ...s Description 1111 0000 System Exclusive SysEx 0000 0001 DSI ID 0011 0001 OB X8 ID 0000 0110 Request Program Edit Buffer Transmit 1111 0111 End of Exclusive EOX The OB X8 will respond by sending out the current program edit buffer in the format described below in Program Edit Buffer Data Dump Request Global Parameter Dump Status Description 1111 0000 System Exclusive SysEx 0000 0001 DSI ID 0011 00...

Page 136: ... 0111 End of Exclusive EOX Program Edit Buffer Data Dump Status Description 1111 0000 System Exclusive SysEx 0000 0001 DSI ID 0011 0001 OB X8 ID 0000 0011 Edit Buffer Data 0vvv vvvv 597 bytes in packed MS bit format 1111 0111 End of Exclusive EOX Save Edit Buffer Status Description 1111 0000 System Exclusive SysEx 0000 0001 DSI ID 0011 0001 OB X8 ID 0000 0101 Request Program Transmit 0000 00vv Ban...

Page 137: ...PN list one byte per parameter and padded with zeros from the final parameter to the 128th byte Packed Data Format Data is packed in 8 byte packets with the MS bit stripped from 7 param eter bytes and packed into an eighth byte which is sent at the start of the 8 byte packet Example Input Data Packed MIDI data 1 A7 A6 A5 A4 A3 A2 A1 A0 1 00 G7 F7 E7 D7 C7 B7 A7 2 B7 B6 B5 B4 B3 B2 B1 B0 2 00 A6 A5...

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