Dave Smith Mopho manual

Operation Manual[...]

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Mopho Operation Manual Version 1.1 August 2010 Dave Smith Instruments 1210 Cabrillo Hwy N Half Moon Bay, CA 94019-1449 USA ©2010 Dave Smith Instruments www.DaveSmithInstruments.com[...]

Tested To Comply With FCC Standards FOR OFFICE USE This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. This Class B digital app[...]

Content s Quick Start................................................................................................. 1 Getting Conn ected .................................................................................... 3 Basic Operation ......................................................................................... 5 Global Para met[...]

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Quick Start Thanks for p urchasing y our Mopho synt hesizer! Liste n to the soun ds, twiddle some knobs , have s ome fun! Please Register! Please go to w ww.davesmi thinstrument s.com and re gister your synt h. If y ou purchased di rectly from us, there is no need to register—we al ready have y our contact inform ation. Powering Up Plug in the po[...]

Don’t forg et you get a free edito r for Mac OS or Windows with your purchase. Download it from ww w.soundtower.com/mopho. I should mention that th is manual does not include ex planations of basic an alog synthesizer function s. It assumes you already know what an oscillator is, how a low-pass filter affects the sound, what an ADSR envelop e loo[...]

Getting Connected Mopho has se veral input s and out puts on its back panel. Power Input — Conn ect the power supp ly included with your Mopho. Th e power supply comes with different AC adap tor prongs that enable it to work almost anywhere in the worl d. If for whatever reason you ne ed to use a different supply, it must match the specifications[...]

Audio can also be used to adva nce the sequencer when Seq Trigger is set t o Audio In. See Sequencer on page 21 for more inform ation. Left Out/Right Out — Mopho’s unbalanced left and right outputs. Phones — A ¼ inch stereo headphone jac k. 4[...]

Basic Operation If you’re fam iliar wit h analog, subt ractive sy nthesis there s houldn’t be anything that looks terr ibly foreign or stra nge abou t Mopho’s front panel. All of the basic building bl ocks are t here. But o ne of the cha llenges of m aking a com pact synt h is giving the user access to all the para meters within a limited am [...]

Program —Press to return Mopho to program mode. Hold to select global mode. Compare —When editing a Program, press Comp are to hear the saved version. Turn Compare off to return to the edited version. Com pare can also be used to audition write destin ations when moving a program. Write —Press Write to save the program and write any edits to [...]

Modes of Operation Mopho has three operating modes: progr am, edit, and global. In program mode, Param 1, Para m 2, and Inc/ Dec are used to change from one saved program t o another. As soon as a ny of the programm able parameters are edited, that parameter is displayed on the LCD, with the programmed value on the top line, and the new, edited val[...]

OSC 1 FEEDBACK/ EXT . IN GAIN FEEDBACK/ EXT . IN VOLUME FEEDBACK SUB 1 VOLUME SUB 2 VOLUME VCA PA N L R VOLUME AUDIO OUT NOISE VOLUME SUBOSC OSC 2 SUBOSC NOISE FIL TER OSC MIX AUDIO IN MOPHO SIGNAL FLOW DIAGRAM (Modulation routing omitted for clarity) 8[...]

Global Parameters Mopho’s Glob al paramete rs affect all prog rams global ly. Exam ples include MIDI channel and fine tune. To edit the Global parameters, hold down the Program switch until Global Parameter is displayed. The Param 1 knob changes the global pa ramet er and Param 2 knob and increment and decrem ent buttons change the value. Transpo[...]

MIDI Out Select: Out, Thru— MIDI O ut can be s witched t o MIDI T hru to daisychain multiple MIDI devices. Poly Chain: Off, Out 1, Out 4, Out 5, Out 8, Out 12, Out 16 —Used to exp and the polyphony via the Poly C hain output an d one or m ore DSI synt hs—Mopho, Tetra, or Prophet. See Using Poly Chain on page 38 for more info rmation. Local Co[...]

arpeggiator. Mopho ca n be confi gured for us e with either normall y open (+) or normally closed (-) footswitches. When set to Arp+ or Arp-, th e footswitch will act as a sustain pedal when the Arpeggiator i s off. Pedal: see table — Sets the destination for the Pedal/CV input. Note that this input is heavily filtered for clean operation, so the[...]

voice architecture is almost id entical, but lacks the sub octav e generators and feedback. Display MIDI Transmit Op eration Current Program Dump current program Current Bank Dump all 128 programs in curren t bank All Banks Dump all programs in all 3 banks Current Prog P08 Dump the current program in Prophet ’08 format CurrentProgMopho Dump the c[...]

Oscillators The Oscillators section contains the primary controls for Mopho’s two digitally controlled analog oscillators or DCOs. “Digitally controlled” does not mean the oscillators themselves are digital, just that the oscillators’ frequencies are under digital—rather than voltage—co ntrol. The advantage to th at is that the tuning i[...]

wave, higher values widen it. At the extreme values, the pulse goes completely flat, which allows for some interesting possibilities with pulse width modulation. 50 Pulse Width 09 9 Glide: 0...127 —Sets the oscillator glide ( portam ento ) rate. Glide can b e set independently for each oscillator. Low va lues are faster. See also “Glide Mod e?[...]

Glide Mode: FixRate, FixRate A, FixTime, FixT ime A —Determines how the oscillators respond when Glide is on. FixRate: Th e time to transition between notes varies with the interval between the notes; the greater the interv al, the long er the transition time. The glide rate is fixed. FixRate A: The same as FixRate, but gl ide is only applie d wh[...]

Mixer The Mixer section balances the levels of the outputs of the Oscillators section and noise ge nerator, a nd the Audio In/feedback lo op before r outing the s ummed signals to the low-pass filter. Mix: 0...127 —Mixes the outputs of oscillators 1 and 2 in varying am ounts. A setting of 0 is equivalent to 100% oscillator 1 and 0% oscillator 2 .[...]

Filter Mopho features a selectable 2- or 4-pole, low-pass filter. 4-Pole —Selects the filter configuration. Wh en lighted, the filter is in 4-pole mode. A 4-pole, low-pass filter rolls off frequencies above the cutoff frequency at a slope of 24dB/octave. When the light is off, the filter is in 2-pole mode and has a slope of 12dB/octa ve and a mor[...]

Envelopes Mopho has three 5-stage (Delay + AD SR) envel ope gene rators. T wo are dedicated—one to the filter and the other to the amplifier—and the third is assignable to any modul ation desti nation. Envelope Select —Selects the envelope to edit. When all three are lighted, the other envel ope param eters control all three e nvelopes sim ul[...]

LFO Mopho has four low frequency oscilla tors (LFOs). The LFOs can be free- running, synced to k eystrokes, or synced to the sequencer an d MIDI clock. To edit the LFO parameters, choose LFO in the Modulation section. LFO Select: 1, 2, 3, 4 —Chooses the LFO to edit. Tip: The four num bered li ghts above the Fre quency kn ob pulse at the frequency[...]

Display Timing Sync 32 Steps Sequence speed divided by 32; one LFO cycle takes 32 steps 16 Steps Sequence speed divided by 16 8 Steps Sequence speed divided b y 8 6 Steps Sequence speed divided b y 6 4 Steps Sequence speed divided b y 4 3 Steps Sequence speed divided b y 3 2 Steps Sequence speed divided b y 2 1.5 Step Sequence speed divided b y 1.5[...]

Sequencer For many musicians, the term sequence r has becom e synonym ous with M IDI sequencer; that is, a com puter-based ap pl ication or dedicate d hardware device for recording and play ing back notes and per formance gestures via MI DI. But sequencers were around long before MIDI. Mopho’s sequencer is much mo re like the origina l analog seq[...]

does not respond to MIDI start/stop/con tinue messages, but it can still sync to an external clock. Simply turn on the sequ encer and then play and hold a note to start. Or use t he Push It button’s to ggle f eature to latch a note on with one push and release it with another; in this case, the Push It button is essentially a Start/Stop control. [...]

Sequence one has an add itional value, Rest, that appears in the list after Reset. Rest prevent s the envelope s from bei ng gated by the correspon ding step, so a rest in sequence one a ffects all four sequence s. If the sequences are t he same length, rests will occur in the sam e place in all four sequences as they loop. If the sequences are dif[...]

To avoid ha ving to h old a key dow n, set the Push It Mo de (Misc. Parameters) to Toggle. Then use Push It t o start and stop the sequencer. You may also want t o change the Push It Note, the BPM, and the Clock Divide. 5. Choose a destinatio n for the sequence. 6. Use the Step and Value controls to enter th e desired values. As the sequence loops,[...]

Note: Depe nding up on the BPM an d Clock Di vide setti ngs, the slew rate can actually exceed the time the e nvelopes are gated on, causing a step i n the affected sequence to not reach its set value. For exam ple, if Slew is applied to oscil lator freque ncy, high Slew values m ay cause a step to sound flat or sharp. If that’s not what you want[...]

Modulators Modulators lets you c onfigure t he modulati on routi ng and am ount for M opho’s four gene ral-purpose m odulation slots. Since each Mo pho modulat ion source has a single dest ination, the four general purpose m odulators p rovide a way t o send a m od source (such as a sequen ce or LFO) to additional destinations, with a different a[...]

Miscellaneous Modulators There are certain standard c ontrollers that Mopho consigns to de dicated modulators, things li ke mod wheel, pressure ( aka aftertouc h), and velocity . The most obvious benefits to doi ng this is it provides a s hortcut to setting up commonly used control lers and it frees up the four ge neral-pur pose mod sl ots for othe[...]

Clock The Clock sect ion contains t he control s for the internal clock tem po and the note value for the a rpeggiato r and seque ncer (and LFO, when Cl ock Sync i s on). There are also switches to t urn the arpe ggiator and se quencer on and off. Arpeggiator —Tur ns Mopho ’s arpeggiator on and off. T he tempo and note value are determined by t[...]

The Arpeggiat or can also be latched wi th a footswi tch connect ed to the Sustai n jack. See “Sustain” in Glo bal Parameters on page 9 . The Arpeggiat or (and Se quencer) ca n also sync t o MIDI clock from an ex ternal sequencer or other de vice. See “Clock” in Global P arameters o n page 9 for more inform ation. Sequencer —Turns Mopho?[...]

Miscellaneous Parameters Miscellaneous Paramete rs groups toget her pr ogrammabl e parameters t hat do not conveniently fall in to any obvious section or, if they do, are p arameters that are less frequently used. They are impor tant, but generally not required for performance. Voice Volume: 0…127— Sets the volum e of the current program to mat[...]

droning sounds, or possibly when using Mopho to process ex ternal audio, turn the VCA Level up. Push It Mode: Normal, Toggle, Audio In— When set to Normal, Push It respo nds like a key: press it and a note plays, release it and th e note ends. But when set to Toggle, Push It turns the note on with one pre ss and off with a second press. This is h[...]

Modulation Sources Display Source Off No source selected Sequence1 Sequence 1 Sequence2 Sequence 2 Sequence3 Sequence 3 Sequence4 Sequence 4 LFO 1 LFO 1 LFO 2 LFO 2 LFO 3 LFO 3 LFO 4 LFO 4 Filt Env1 Filter Envelope VCA Env 2 Amp (VCA) Envelope Envelope3 Envelope 3 PitchBend Pitch Bend Mod Wheel Mod Wheel Pressure Pressure (Aftertouch) MidBreath MID[...]

Modulation Destinations Display Destination Off No destination selected Osc 1 Freq Oscillator 1 Frequenc y Osc 2 Freq Oscillator 2 Frequenc y OscAllFreq Oscillator 1 and 2 Frequenc y Osc Mix Oscillator Mix NoiseLevel Noise Level Osc1 PulsW Oscillator 1 Pulse Width Osc2 PulsW Oscillator 2 Pulse Width Osc All PW All Oscillators Puls e Width Low Pass [...]

Mod 3 Amt Modulator 3 Amount Mod 4 Amt Modulator 4 Amount Fback Vol Feedback Volume Sub Osc 1 Sub Oscillator 1 Level Sub Osc 2 Sub Oscillator 2 Level Fback Gain Feedback Gain Slew Sequencer Slew* *Appears as a destination in sequences 2 and 4 only . 34[...]

Using USB Mopho’s USB 2.0 port enables bi directional MIDI comm unication wi th a computer. A M IDI interface and MIDI ca ble s are not necessary, just a USB cable. Mopho i s a Class Com pliant USB device. That m eans it does not requi re any additional drivers to be installed to communicate with a Mac or Windows computer. Mopho transmits and rec[...]

Windows Vist a and Window s 7 behave t he same as XP, but the de vice name i s DSI Mopho rat her than USB Audio Device. In Windows, if you unplug the USB cable an d plug it back in while a progra m has the Mopho port open, you may hav e to resync. That usually means going to the USB Audi o Device ( or DSI Moph o) Properties, a s in the proce dure a[...]

Using Audio In The Audio I n jack on Mo pho’s rear panel can take au dio from a variety of sources, including line lev el signals and guitars. But what happens to it once its inside and how do you get it ou t again? Simply plugging a gu itar in does not mean you will actually hear something wh en you play it. Mopho’s basic audio signal path goe[...]

Using Poly Chain Mopho’s Poly Chain output enables it to be connected t o other DS I synths f or up to 17-voice polyphon y. Products that can be chained include the Tetra, Prophet '08 (mod ule and keyboard) , desktop M opho, and a seco nd keyboard M opho. It will not chain with the Evo lvers and Poly Evolvers due to the different voice struc[...]

Note : If sy ncing to an ext ernal M IDI clock, s et MIDI Cloc k (Global menu) on the master and any intermediate units to MIDI In/Out. Set the last instrument in the chain to MIDI In. When Poly Chain is set to Off, the Poly Chain MIDI out jack simply duplicates the MIDI out jack. 39[...]

9 V oices: MIDI In Prophet In Poly Chain Out Mopho Kybd. Out 8 MIDI In Poly Chain Out T etra InOut4 9 V oices: MIDI In T etra In End Poly Chain Out Mopho Kybd. Out 8 MIDI In Poly Chain Out T etra InOut4 6 V oices: Poly Chain Out Mopho Kybd. Out 5 MIDI In Mopho 13 V oices: Poly Chain Out Mopho Kybd. Out 12 MIDI In Poly Chain Out T etra InOut8 MIDI I[...]

Support Troubleshooting Here are a few suggestions for re solving problems that may occur. The sequencer has stop ped running. Make sure Clock in the Global menu is set to Internal. Some of the progr ams sound different. Check the Mod Wheel position. The Mod Wheel can do a lot more than just ad d vibrato. Als o, some of the program s use the seque [...]

Warranty Repair Dave Smith Instruments warrants that Mopho will be free from defects in materials and/ or workm anship for 1 y ear from the date of purc hase. Please register your product online at www.davesmithin struments.com to establish the date of purchase. (This is not a requireme nt for warranty service, but it will help expedite the process[...]

MIDI Implementation Mopho receives MIDI data according t o the m ode controls unde r G LOBAL . In addition, there is interaction between some of the Program parameters that determine the overall response of Mopho to MIDI data. Following are the Global para meters that affect response to MIDI: MIDI Channel: ALL, 1…16 — Selects the MIDI channel t[...]

MIDI Messages System Real-time Messages Status Description 1111 1000 MIDI Timing Clock Received Channel Messages Status Second Third Description 1000 nnnn 0kkkkkkk 0vvvv vvv Note Off. Velocity is ignored 1001 nnnn 0kkkkkkk 0vvvv vvv Note On. Note off if vvvvvvv = 0 1010 nnnn 0kkkkkkk 0vvvv vvv Polyphonic Key Pressure 1011 nnnn 0vvvvvvv 0vvvv vvv Co[...]

Transmitted Channel Me ssages Status Second Third Description 1000 nnnn 0kkkkkkk 0000000 Note Off. 1001 nnnn 0kkkkkkk 0vvvv vvv Note On. 1011 nnnn 0vvvvvvv 0vvvv vvv Control Change; see “Transmitted Controller Messages” table following 1100 nnnn 0ppppppp Program change, 0 – 127 for Prog rams 1 – 128 within current Bank 1101 nnnn 0vvvvvvv Ch[...]

46 Additional Continuous C ontrollers (CCs) Transmitted/Recei ved The following table details how CCs are mapped onto Mopho’s contro ls. They are transmitted when MIDI Parameter Send is set to CC in Global, and recognized when received when MIDI Para meter Receive is set to eithe r CC or All in Global. Parameter CC# Osc 1 Frequency 20 Osc 1 Freq [...]

NRPN Messages The Non-Registered Parame ter Number (NR PN) MIDI messages are use d to transmit and receive both gl obal and pr ogram parameters. They are transmitted when MIDI Param eter Send is set to NR PN in Global, and received when MIDI Parameter Receive is set to either NRPN or All in Global. The messages are handled in standard MIDI format u[...]

Received NRPN Messages Status Second Third Description 1011 nnnn 0110 0011 0vvvvvvv NRPN parameter number MSB CC 1011 nnnn 0110 0010 0vvvvvvv NRPN parameter number LSB CC 1011 nnnn 0000 0110 0vvvvvvv NRPN parameter value MSB CC 1011 nnnn 0010 0110 0vvvvvvv NRPN parameter value LSB CC 1011 nnnn 0110 0000 0xxxxxxx NRPN pa rameter value Increment 1011[...]

Param NRP N Range Description 8 406 0 - 1 MIDI Out Se lect*: 0 MIDI Out 1 MIDI Thru 9 387 0 - 6 Poly Chain*: 0 Off 1 Out 1 2 Out 4 3 Out 5 4 Out 8 5 Out 12 6 Out 16 10 389 0 – 1 Local Control* Off/On 11 400 0 - 1 Audio Outputs: 0 Stereo 1 Mono 12 404 0 - 2 Pot Mode: 0 Relative 1 PassThru 2 Jump 13 397 0 - 3 Damper Polarity: 0 Sustain, normally op[...]

Program Parameter Data The following table lists Mopho’s voice parameters. The parameter number in the program and edit buffer dumps are diffe rent than t he NRPN num bers as seen; this was to maintain NRPN compatibility with the Prophet ’08 as much as possible. Param NRPN Range Description 0 0 0 - 120 Oscillator 1 Frequency, 0 - 120 in semiton[...]

22 17 0 - 127 Filter Keyboard Amount 23 18 0 - 127 Filter Audio Modulation 24 19 0 - 1 Filter Poles 0: 2-pole; 1: 4-pole 25 20 0 - 254 Filter Envelope Amount; -127 to +127 26 21 0 - 127 Filter Envelope Velocity Amount 27 22 0 - 127 Filter Envelope Delay 28 23 0 - 127 Filter Envelope Attack 29 24 0 - 127 Filter Envelope Decay 30 25 0 - 127 Filter En[...]

50 45 0 - 47 LFO 2 Mod Destination; See Modulation Destination list below 51 46 0 - 1 LFO 2 Key Sync Off/On 52 47 0 - 166 LFO 3 Frequenc y; same as LFO 1 53 48 0 - 4 LFO 3 Shape; same as LFO 1 54 49 0 - 127 LFO 3 Amount 55 50 0 - 47 LFO 3 Mod Destination; See Modulation Destination list below 56 51 0 - 1 LFO 3 Key Sync Off/On 57 52 0 - 166 LFO 4 Fr[...]

86 84 0 - 47 Pressure Destination; See Modulation Destination list below 86 85 0 - 254 Breath Amount; -127 to +127 88 86 0 - 47 Breath Destination; See Modulation Destination list below 89 87 0 - 254 Velocity Amount; -127 to +127 90 88 0 - 47 Velocity Destination; See Modulation Destination list below 91 89 0 - 254 Foot Control Amount; -127 to +127[...]

103 97 0 - 14 Arpeggiator M ode: 0 Up 1 Down 2 Up/Down 3 Assign 4 Random 5 Up 2 Octaves 6 Down 2 Octaves 7 Up/Down 2 Octaves 8 Assign 2 Octaves 9 Random 2 Octaves 10 Up 3 Octaves 11 Down 3 Octaves 12 Up/Down 3 Octaves 13 Assign 3 Octaves 14 Random 3 Octaves 104 100 0 - 1 Arpeggiator; Off/On 105 94 0 - 5 Sequencer Trigg er: 0 Normal 1 Normal, no res[...]

The following tables list the values used with the program parameters to specify modulati on destinati ons and sou rces. Mod Destinations Value Off 0 Osc 1 Freq 1 Osc 2 Freq 2 Osc 1 and 2 Freq 3 Osc Mix 4 Noise Level 5 Osc 1 Pulse Width 6 Osc 2 Pulse Width 7 Osc 1 and 2 Pulse Width 8 Filter Frequency 9 Resonance 10 Filter Audio Mod Amt 11 VCA Level[...]

Mod 1 Amt 40 Mod 2 Amt 41 Mod 3 Amt 42 Mod 4 Amt 43 External Audio In Level 44 Sub Osc 1 Level 45 Sub Osc 2 Level 46 Feedback Gain 47 Slew* 48 *Appears as a destination in sequences 2 and 4 only. Mod Sources Value Off 0 Sequence Track 1 1 Sequence Track 2 2 Sequence Track 3 3 Sequence Track 4 4 LFO 1 5 LFO 2 6 LFO 3 7 LFO 4 8 Filter Envelope 9 Amp [...]

Sysex Messages Universal System Exclusi ve Message (Device Inquir y) Status Description 1111 0000 System Exclusive (SysEx) 0111 1110 Non-realtime message 0vvv vvvv If MIDI channel 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 [...]

Request Program Edit Buffer Dump Status Description 1111 0000 System Exclusive (Sy sEx) 0000 0001 DSI ID 0010 0111 Mopho keyboard ID 0000 0110 Request Program Edit Buffer Transmit 1111 0111 End of Exclusive (EOX) Mopho will respond by send ing out the current Program edit buffer in the fo rmat described belo w in Program Edit Buffer Data Dump . Req[...]

59 Program Edit Buffer Data Du mp Status Description 1111 0000 System Exclusive (Sy sEx) 0000 0001 DSI ID 0010 0111 Mopho keyboard ID 0000 0011 Edit Buffer Data 0vvv vvvv 256 bytes expanded to 293 MIDI bytes in “packed MS bit” format (see page 59 .) 1111 0111 End of Exclusive (EOX) Global Parameters Data Dump Status Description 1111 0000 System[...]

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Dave Smith Instruments 1210 Cabrillo Hwy N Half Moon Bay, CA 94019-14 49 USA www.DaveSmithInstruments.com[...]