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Prophet Rev2 User’s Guide

Amplifier Envelope

Delay:

 0...127

—Sets a delay between the time the envelope is triggered 

(note on) and when the attack portion actually begins. 

Attack:

 0...127

—Sets the attack time of the envelope. The higher the 

setting, the slower the attack time and the longer it takes for the filter to 
open from the level set with the filter 

cutoff

 knob to the level set by the 

filter envelope amount. Percussive sounds typically have sharp (short) 

attacks.

Decay:

 0...127

—Sets the decay time of the envelope. After a sound 

reaches the filter frequency set at its attack stage, 

decay

 controls how 

quickly the filter then transitions to the cutoff frequency set with the 

sustain

 knob. The higher the setting, the longer the decay. Percussive 

sounds, such as synth bass, typically have shorter decays (and a generous 

amount of low-pass filter resonance).

Sustain:

 0...127

—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:

 0...127

—Sets the release time of the envelope. This controls 

how quickly the filter closes after a note is released.

Amplifier Envelope

After passing through the filters, a synthesized sound goes into an analog 
voltage controlled amplifier or VCA, which controls its overall volume. 
The VCA has a dedicated, five-stage envelope generator (DADSR). 

The Amplifier Envelope is used to shape the volume characteristics of a 

sound over time by giving you control over its attack, decay, sustain, and 
release stages (plus a delay parameter to delay the onset of the envelope). 

Along with the filter envelope, this is one of the most important factors 

in designing a sound. 

Without a volume envelope, the volume of a sound wouldn’t change 
over the duration of a note. It would begin immediately, remain at its full 
volume for the duration of the note, then end immediately when the note 
was released. Again, that’s not very interesting sonically and it’s not typi-
cally how instruments behave in the real world. 

Содержание Prophet Rev2

Страница 1: ...8 16 Voice Polyphonic Synthesizer...

Страница 2: ......

Страница 3: ...User s Guide Version 1 0 May 2017 Dave Smith Instruments LLC 1527 Stockton Street 3rd Floor San Francisco CA 94133 USA 2017 Dave Smith Instruments LLC www davesmithinstruments com...

Страница 4: ...nce and 2 this device must accept any interference received including interference that may cause undesired operation This Class B digital apparatus meets all requirements of the Canadian Interference...

Страница 5: ...gram from Scratch 3 Saving a Program 4 Canceling Save 4 Naming a Program 5 Working with Stacked or Split Programs 6 Moving to the Next Level 10 Connections 12 Global Settings 14 Oscillators 19 Oscilla...

Страница 6: ...g a Polyphonic Sequence Between Layers 45 Programming the Gated Sequencer 47 Using Slew 48 Sequencer Parameters 48 Clock Parameters 50 Unison 51 Using Chord Memory 52 Master Volume Program Volume 54 P...

Страница 7: ...g USB 67 Appendix A Modulation Sources 69 Appendix B Modulation Destinations 70 Appendix C Alternative Tunings 71 Appendix D Troubleshooting and Support 75 Troubleshooting 75 Contacting Technical Supp...

Страница 8: ...Preve Lorenz Rhode Nick Semrad Huston Singletary James Terris and Mitch Thomas The DSI Crew ArtArellano Fabien Cesari Bob Coover Carson Day Chris Hector Tony Karavidas Mark Kono Justin Labrecque Andy...

Страница 9: ...out the original Prophet 08 and in many cases doubling its power We took the classic sound of the Prophet 08 s DCO and Curtis filter based voice and added powerful new features that the original never...

Страница 10: ......

Страница 11: ...v Saw Square Random SHAPE 4 POLE DELAY ATTACK DECAY SUSTAIN RELEASE Sawtooth Saw Tri Triangle Pulse SHAPE KEY SYNC CLK SYNC Sawtooth Saw Tri Triangle Pulse OSC 2 FREQ FREQUENCY AMOUNT DESTINATION PITC...

Страница 12: ...ant 2 Turn the program knob to select a program within that bank Editing Programs Because the majority of the sound shaping controls of the Prophet Rev2 appear on its front panel editing an existing p...

Страница 13: ...rence Normally to make a parameter value appear in the display you have to turn the parameter s knob which will change the parameter value But there is a way to do this without changing the value To c...

Страница 14: ...ocation 1 Press the write button Its LED begins blinking 2 Press the write button again Its LED stops blinking and the program is saved To save a program to a different location 1 Press the write butt...

Страница 15: ...ound press the compare button again to turn it off Programs can t be written while in compare mode 5 If you want to save the edited sound the write button is still flashing and ready to save so naviga...

Страница 16: ...e different Effect Unison Arpeggiator and Sequencer settings This allows for some very interesting combinations of sounds As you scroll through various factory programs you can tell which are stacked...

Страница 17: ...oices are used per note To turn Stack off If it s currently lit press the stack a b button The button becomes unlit Only the program on Layer A is heard To edit Layer B 1 Press the edit layer b button...

Страница 18: ...copied to Layer B To copy Layer B to Layer A 1 Press both the split a b button and the stack a b button simultaneously 2 Turn the parameter knob and select copy layer b to a 3 Press the write button...

Страница 19: ...ly lit press the split a b button The button becomes lit The left side of the keyboard plays the Layer A sound and the right side of the keyboard plays the Layer B sound To turn Split off If it s curr...

Страница 20: ...ne which works best for you when you re editing sounds You ll also find information about MIDI setup Read this to more effectively integrate the Prophet Rev2 into your MIDI rig To get the most out of...

Страница 21: ...11 Prophet Rev2 User s Guide Getting Started...

Страница 22: ...n MIDI DIN connectors 4 Sequencer Accepts a momentary normally open or normally closed footswitch to turn the sequencer or arpeggiator on and off Alternatively an audio signal connected to this jack c...

Страница 23: ...add expressiveness to live performance 7 B Audio Outputs Unbalanced inch audio outputs Connect audio cables to these jacks if you want separate stereo outputs for Layer B If no cables are connected L...

Страница 24: ...nor received Master MIDI Clock is sent but not received Slave MIDI Clock is received but not sent Slave Thru MIDI Clock is received and passed to MIDI Out Slave No S S no start and stop Receives MIDI...

Страница 25: ...transmitted 12 Multi Mode On Off Multi Mode allows separate MIDI control of voices 1 8 and voices 9 16 on 16 voice systems On 8 voice systems this is voices 1 4 and voices 5 8 This enables independen...

Страница 26: ...ary encoders and potentiometers or pots The pots are identifiable by their lined knobs and the fact that they have about 300 of travel There are three pot modes to determine how the synth reacts when...

Страница 27: ...igger Gate T G Selects the mode for signals received on the rear panel sequencer jack With normal selected a footswitch will start sequencer playback With trig selected an audio signal connected to th...

Страница 28: ...s You shouldn t need to do this under normal circumstances since the filters are calibrated at the factory and generally don t require re calibration or re tuning 26 Reset Globals Sets the global para...

Страница 29: ...dom pitch drift and oscillator instability of vintage instruments use the osc slop parameter to dial in as little or as much drift as you like OSC 1 FREQ SYNC FINE TUNE SHAPE MOD SUB OCTAVE OSC MIX SH...

Страница 30: ...o turn the oscillator off by selecting no waveshape Shape Mod Changes the pulse width of the selected waveform which modifies its harmonic content and timbre To generate a square wave when pulse is se...

Страница 31: ...to be mixed in varying amounts A setting of 0 is equivalent to 100 Oscillator 1 and 0 Oscillator 2 A setting of 127 is the opposite A setting of 64 is a 50 50 mix of both oscillators Noise 0 127 Sets...

Страница 32: ...are reduced from the top down cutting the high frequencies and passing the low frequencies hence the name low pass Resonance 0 127 Emphasizes a narrow band of frequencies around the cutoff frequency...

Страница 33: ...nsitive sounds Key Amount 0 127 Sets the amount of modulation from the keyboard to the filter s cutoff frequency Any setting above zero means that the higher the note played on the keyboard the more t...

Страница 34: ...d stay open or closed by a fixed amount that wouldn t change over the duration of a sound That s not very interesting to listen to and it s not how instruments behave in the real world In general soun...

Страница 35: ...ained portion of the sound The sound will stay at this filter frequency for as long as a note is held on the keyboard Release 0 127 Sets the release time of the envelope This controls how quickly the...

Страница 36: ...again they are both fundamentally white noise AMPLIFIER PAN SPREAD ATTACK ENV AMOUNT DECAY VELOCITY SUSTAIN DELAY RELEASE Amplifier Envelope Attack Decay Sustain Release Delay Amplitude Time note on n...

Страница 37: ...erent direction This provides a wide stereo field as you play Any modulation to Pan will individually move each voice from its static position as set by the pan spread setting Env Amount 0 127 Sets th...

Страница 38: ...e misc params menu This is useful for cyclical 4 stage modulation Actually any of the Prophet Rev2 s envelopes can be routed to any destination or multiple destinations using the modulation matrix See...

Страница 39: ...cks Percus sive sounds have sharper shorter attacks Decay 0 127 Sets the decay time of the envelope After a sound reaches its full volume at its attack stage decay controls how quickly the sound trans...

Страница 40: ...Rev2 LFOs can actually function at speeds that extend into the audible range for extreme effects SHAPE Triangle Sawtooth Rev Saw Square Random KEY SYNC CLK SYNC FREQUENCY AMOUNT DESTINATION 1 2 3 4 L...

Страница 41: ...n also use the modulation matrix to route an LFO to additional destinations Amount Sets the amount of LFO modulation routed to the selected destination Setting an amount here applies the selected modu...

Страница 42: ...tion whenever you use the filter envelope to control the filter s cutoff frequency In this case the modulation source is the filter envelope or more precisely any of its controls such as attack decay...

Страница 43: ...t you want to use as a destination filter cutoff for example Set the amount using the parameter and value knobs next to the display Be aware that not all front panel controls can be used as a modulati...

Страница 44: ...pressure as the modulation source instead of the mod wheel in the previ ous example to open the filter positive amount or close the filter negative amount with key pressure aftertouch Other modulation...

Страница 45: ...nal path of the Prophet Rev2 is analog The on off switch enables and disables an effect ensuring an analog signal path when off Effects settings are saved individually with each program Time based eff...

Страница 46: ...knob to blend in a good amount of the processed signal You ll want to be able to clearly hear the effect when you tweak its settings You can dial it down afterward 4 Use the param 1 and param 2 knobs...

Страница 47: ...longer synced delay times with slower tempos can result in delay times that would be greater than 1 second When that happens the delay time is divided by 2 until it no longer exceeds the 1 second limi...

Страница 48: ...this parameter off the ring modula tor functions like the original Oberheim unit In this mode pitch tracking is off and Parameter 1 sets the modulation frequency which remains the same regardless of w...

Страница 49: ...ase the notes on the keyboard and the arpeggio will continue to play with any additional notes that you play added to the arpeggio To prevent the arpeggiator from adding new notes to an arpeggio when...

Страница 50: ...used to drive the arpeggiator sequencer should not exceed 5 volts peak to peak See Seq Pedal Mode on page 17 for more information about choosing the appropriate mode for these behaviors Arpeggiator Pa...

Страница 51: ...ow frequency oscillator or clk sync is enabled in the Effects section the BPM rate affects the LFO frequency and or delay effect When syncing to an external MIDI clock source the BPM setting has no ef...

Страница 52: ...Polyphonic Sequencer With the polyphonic sequencer you can create sequences that are rhyth mically and melodically complex by constructing a repeating musical phrase with notes ties and rests You can...

Страница 53: ...ote and velocity as you play When recording a chord as a step as long as you continue to hold at least one note down you can keep adding notes to the chord step and even use the transpose buttons to e...

Страница 54: ...interval Playing a note below middle C trans poses the sequence lower by that interval Editing a Polyphonic Sequence You can edit a sequence after you ve recorded it This is convenient for fixing mist...

Страница 55: ...r A to Layer B and vice versa You can also swap sequences between layers To copy a sequence on Layer A to Layer B 1 Press both the split a b button and the stack a b button simultaneously 2 Turn the p...

Страница 56: ...The duration varies according to the BPM and Divide settings or the MIDI clock if synced to an external source The envelope settings of the current program ultimately determine how long each step pla...

Страница 57: ...the sequence if you want to use fewer than 16 steps The sequence will loop when it reaches that step 7 Repeat steps 5 6 as necessary to create the rest of the gated sequence 8 When you re done hold do...

Страница 58: ...ency and sequence 2 to Slew Increasing the Slew value for step 4 will cause the oscillator frequency to glide from the step 3 value when step 4 is gated on The higher the Slew value the slower the sle...

Страница 59: ...step one to C2 playing Middle C on the keyboard will produce C two octaves above middle C on step one A value of C0 will produce the exact note that you play on the keyboard A value of G0 will produce...

Страница 60: ...Sets the note value for each sequencer arpeggiator step relative to the BPM divide works with both internal and external clock sources The following table lists the values Name Tempo Timing Division H...

Страница 61: ...ry using Unison Unison gives you control over not only how many voices to stack but also the amount of detuning between the oscillators with the unison detune parameter in the misc params menu and wha...

Страница 62: ...d will then trigger all notes of the stored chord transposing them as you play up or down the keyboard Try using this feature to create powerful chord stabs If you save a program that uses chord memor...

Страница 63: ...ow Note Priority is most common in vintage synths and is often used for playing trills by holding a note and repeatedly tapping a lower note Low Retrigger causes the envelopes to be retriggered with e...

Страница 64: ...particular can be very loud compared to other programs MISC PARAMS show U1 P1 Filter Sweep Program Volume 127 120 Press to toggle on Misc Parameters Program Volume To set the volume of an individual...

Страница 65: ...eates a broader stereo field while playing AMPLIFIER PAN SPREAD ATTACK ENV AMOUNT DECAY VELOCITY SUSTAIN DELAY RELEASE Pans individual voices in the stereo field Pan Spread Transpose The up and down b...

Страница 66: ...HOLD UNISON TRANSPOSE Down Up The Hold button Glide Glide causes the pitch of a note to glide up or down from the pitch of the previously played note Glide is turned on and off using the glide switch...

Страница 67: ...ies with the interval between the notes the greater the interval the longer the transition time The glide rate is fixed This is the default glide mode Fixed Rate A The same as Fixed Rate but glide is...

Страница 68: ...you beyond just playing notes on the keyboard Pitch Mod The Pitch and Modulation wheels Pitch Wheel You can set a range in semitones for the pitch wheel depending on your playing preference The range...

Страница 69: ...lay to scroll to Mod Slot 1 if it s not already displayed 2 Use the parameter knob to select the source field Use the value knob to scroll through the various mod sources and choose mod wheel 3 Use th...

Страница 70: ...en wider and the sound become brighter Conversely if you select the filter frequency as destination set a nega tive amount of pressure then press the keys harder the filter cutoff frequency will be lo...

Страница 71: ...ing which is typically how analog synths behave That is the oscillators are running whether a note is being gated on played or not When the amplifier envelope is set for a fast attack this can cause a...

Страница 72: ...e way the oscillators respond to Glide settings See Glide on page page 56 for more details Osc 1 Glide 1 127 While the glide rate knobs sets the same amount of glide for both oscillators simultaneousl...

Страница 73: ...elope repeat Sustain still affects the level at which the Decay segment ends but instead of sustaining at a fixed level while a note is gated on Delay Attack and Decay loop until the note is turned of...

Страница 74: ...he parameter knob to select midi sysex cable then use the value knob to choose usb 5 Use the parameter knob to select dump prog dump bank or dump all banks depending on which of these you would like t...

Страница 75: ...on The Prophet Rev2 is compatible with Prophet 08 sounds so you can import any Prophet 08 programs and they will sound just as good if not better To import a program or bank as a SysEx file over MIDI...

Страница 76: ...the power while it s doing this 4 When finished the front panel controls will return to normal and you can play the Prophet Rev2 again Calibrating the Pitch and Mod Wheels To calibrate the Pitch and M...

Страница 77: ...ime and transmit the same data USB Notes Under Mac OS X Prophet Rev2 Keyboard will appear as a MIDI port when connected via USB and can be configured using the Mac s Audio MIDI Setup utility typically...

Страница 78: ...68 Using USB Dave Smith Instruments...

Страница 79: ...ix A Modulation Sources Off Seq 1 Seq 2 Seq 3 Seq 4 LFO 1 LFO 2 LFO 3 LFO 4 Env LPF Env VCA Env 3 Pitchbend Mod Wheel Pressure Breath Foot Pedal Expression Pedal Velocity Note Number Noise DC Audio Ou...

Страница 80: ...O 1 Freq LFO 2 Freq LFO 3 Freq LFO 4 Freq LFO All Freq LFO 1 Amount LFO 2 Amount LFO 3 Amount LFO 4 Amount LFO All Amount LP Filter Env Amount Amp Env Amount Env 3 Amount Env All Amount LPF Attack VCA...

Страница 81: ...re descriptions of the default alternative tunings 1 12 Tone Equal Temperament non erasable The default Western tuning based on the twelfth root of two 2 Harmonic Series MIDI notes 36 95 reflect harmo...

Страница 82: ...iest tuning systems known from history the Pythagorean scale is constructed from an upward series of pure fifths 3 2 transposed down into a single octave The tuning works well for monophonic melo dies...

Страница 83: ...B and Bb acting as 1 1 for their respective modes Note that some of the notes will have the same frequency By tuning the 1 1 to 60 Hz Dan found a creative way to incorporate the inevitable line hum i...

Страница 84: ...d 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...

Страница 85: ...e sequencer or arpeggiator has stopped running Check the midi clock mode setting in global to ensure the Prophet Rev2 is set to master or off Or if set to slave or slave thru or slave no s s make sure...

Страница 86: ...nd 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 u...

Страница 87: ...ble for this USB MIDI doesn t work in bootloader mode 3 As the OS loads you will see the main display count upward from zero to 99 When it reaches 99 a second count will begin Do not power down The Pr...

Страница 88: ...ne the best course of action for getting your Prophet Rev2 repaired For your own protection as well as ours please do not return any product to Dave Smith Instruments without a return authorization RA...

Страница 89: ...not sent Slave Thru MIDI Clock is received and passed to MIDI Out Slave No S S no start and stop Receives MIDI Clock but does not respond to MIDI Start or Stop command When set to slave or slave thru...

Страница 90: ...e port by which MIDI data will be transmitted MIDI Messages System Real Time Messages Status Description 1111 1000 MIDI Timing Clock Received Channel Messages Status Second Third Description 1000 nnnn...

Страница 91: ...or higher 1011 nnnn 0111 1011 0vvvvvvv All Notes Off Clear all MIDI notes 1011 nnnn 0111 1001 0vvvvvvv Reset All Controllers Clears all MIDI controllers to 0 MIDI volume to maximum See sections below...

Страница 92: ...v Mod Wheel 1011 nnnn 0100 1010 0vvvvvvv Brightness Assigned to Penal CV 1011 nnnn 0010 0000 0vvvvvvv Bank Select 0 9 1011 nnnn 0100 0000 0vvvvvvv Damper pedal Sends 0 if off 0111 1011 nnnn 0000 0111...

Страница 93: ...sc 1 Glide Rate Time 24 Osc 2 Frequency 25 Osc 2 Fine Tune 26 Osc 2 Shape 27 Osc 2 Glide Rate Time 28 Osc Mix 29 Noise Level 30 Osc 1 Shape Mod 31 Osc 2 Shape Mod 33 Arp On Off 34 Arp Mode 35 Arp Rang...

Страница 94: ...e MSB 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 p...

Страница 95: ...10 0vvvvvvv 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...

Страница 96: ...2 MIDI Param Receive 0 NRPN 1 CC 2 Off 4103 0 1 MIDI Control Enable 0 Off 1 On 4104 0 1 MIDI SysEx Cable 0 MIDI 1 USB 4105 0 3 MIDI Out Select 0 Off 1 MIDI 2 USB 3 MIDI USB 4107 0 1 Local Control 0 O...

Страница 97: ...stain 26 0 127 Filt Env Release 28 0 127 Pan Spread 29 0 127 Voice Volume 30 0 127 VCA Env Amt 31 0 127 VCA Env Vel 32 0 127 VCA Env Delay 33 0 127 VCA Env Attack NRPN Value Description 34 0 127 VCA E...

Страница 98: ...2 Note Reset 105 0 1 LFO 1 Key Sync 106 0 1 LFO 2 Key Sync 107 0 1 LFO 3 Key Sync 108 0 1 LFO 4 Key Sync 111 0 1 Glide On Off 113 0 12 Pitch Bend Range NRPN Value Description 114 0 1 Pan Mode 116 0 25...

Страница 99: ...ated Seq Track 4 Step 1 16 276 339 0 127 Seq Step 1 64 Note 1 340 403 128 255 Seq Step 1 64 Velocity 1 404 467 0 127 Seq Step 1 64 Note 2 468 531 128 255 Seq Step 1 64 Velocity 2 532 595 0 127 Seq Ste...

Страница 100: ...el is set to 1 16 0vvvvvvv must match unless MIDI Channel ALL always responds if 0vvvvvvv 0111 1111 0000 0110 Inquiry Message 0000 0001 Inquiry Request 1111 0111 End of Exclusive EOX The Rev2 responds...

Страница 101: ...p Status Description 1111 0000 System Exclusive SysEx 0000 0001 DSI ID 0010 1111 Rev2 ID 0000 0110 Request Program Edit Buffer Transmit 1111 0111 End of Exclusive EOX The Rev2 will respond by sending...

Страница 102: ...scription 1111 0000 System Exclusive SysEx 0000 0001 DSI ID 0010 1111 Rev2 ID 0000 0011 Edit Buffer Data 0vvv vvvv 1024 bytes expanded to 1171 MIDI bytes in packed MS bit format 1111 0111 End of Exclu...

Страница 103: ...ata 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 A4 A3 A2 A1 A0 3 C7 C6 C5 C4 C3 C2 C1 C0 3 00 B6 B5 B4 B3 B2 B1 B0 4 D7 D6 D5 D4 D3 D2 D1 D0 4 00 C6 C5 C4...

Страница 104: ...om updating prophet rev2 os Copying Layer A and Layer B Presets Between Programs The Prophet Rev2 is bi timbral meaning that it can produce two different sounds programs at the same time either by sta...

Страница 105: ...ayer a bank and program numbers This is the Audition Layer parameter 2 Use the bank and program knobs to scroll through any of the various presets in the synthesizer To change the sound on Layer B 1 W...

Страница 106: ...to save the edited sound the write button is still flashing and ready to save so navigate to a location with the bank and program knobs and press write The sound is saved Alternatively if you want to...

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