Dave Smith Instruments Mopho Keyboard Operation Manual
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Dave Smith Instruments Mopho Keyboard Operation Manual

Dave smith instruments mopho keyboard: user guide
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  • Page 1 Operation Manual...
  • Page 3 Mopho Operation Manual Version 1.0 September 2008 Dave Smith Instruments 1590 Sylvaner Avenue Saint Helena, CA 94574-2340 ©2008 Dave Smith Instruments www.DaveSmithInstruments.com...
  • Page 4 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 operation. This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

  • Page 5: Table Of Contents

    Contents Quick Start... 1 Getting Connected ... 3 Front Panel Controls ... 5 Basic Operation... 9 Global Parameters ... 13 Program Parameters... 15 Oscillator Parameters ... 15 Miscellaneous Oscillator Parameters ... 16 Mixer Parameters ... 17 Low-pass Filter Parameters... 17 VCA Parameters...

  • Page 7: Quick Start

    Quick Start Thanks for purchasing your Mopho synthesizer! Listen to the sounds, twiddle some knobs, have some fun! Please Register! Please go to www.davesmithinstruments.com and register your synth. If you purchased directly from us, there is no need to register — we already have your contact information.
  • Page 8 read through the manual to discover all the little features that you might not notice at first. Don’t forget you get a free editor for Mac OS or Windows with your purchase. Download it from www.soundtower.com/mopho. I should mention that this manual does not include explanations of basic analog synthesizer functions.

  • Page 9: Getting Connected

    Getting Connected Mopho has several inputs and outputs on its back panel. Connect the power supply included with your Mopho. The Power Input — power supply comes with different AC adaptor prongs that allow it to work anywhere in the world. If for whatever reason you need to use a different supply, it must match the specifications printed on the front panel.

  • Page 11: Front Panel Controls

    Front Panel Controls Used to adjust the gain of A Input Gain — Mopho to process external audio, see page 11. For low-level sources (like guitars), I should be turned up. For line-level sources, it will usually NPUT be turned down. Turning it down does not turn it off, it just decreases the gain. External Input Volume (see Mixer Parameters on page 17) controls the amount of signal that gets mixed into the filter and must be turned up for any audio—...
  • Page 12 mode and displays the last parameter edited and its stored and edited values. See Program Parameters starting on page 15 for more information. Global mode is accessed by briefly holding down the P The Global menu is displayed. Use P the increment and decrement (+ and -) buttons to change the settings.
  • Page 13 Controls the base frequency of the two oscillators. The relative interval Pitch — between the two oscillators is maintained, even when the extremes are reached. Controls the filter cutoff. Cutoff — Controls filter resonance. Resonance — Note: The filter will only self oscillate when in 4-pole mode. See Low- pass Filter Parameters on page 17 for more information.

  • Page 15: Basic Operation

    Basic Operation In designing Mopho, the goal was to make a great sounding analog mono synth that was also affordable. Toward that end, we wanted to give players enough control over parameters to make it useful for performance, so we came up with a combination of “hard-wired”...

  • Page 17: Saving A Program

    also affects the level of the feedback signal, so you’ll typically want NPUT to start with I NPUT Several of the factory programs already have some level of feedback programmed in, as indicated by the letters “FB” following the name. To hear the effect of ExtIn Vol and I those parameters.

  • Page 19: Global Parameters

    Global Parameters Mopho’s Global parameters affect all programs globally. Examples include MIDI channel and fine tune. To edit the Global parameters, hold down the switch until Global Parameter is displayed. The P ROGRAM knob changes the global parameter and the increment and decrement buttons change the value.
  • Page 20 Audio Out: Stereo, Mono — Mono, this parameter defeats all pan settings and modulation, effectively making each of the outputs a mono output. MIDI Out Select: Out, Thru — daisychain multiple MIDI devices. Press the W Basic Patch — (The patch will not actually be written to the current program location unless intentionally written to memory in program mode using the W Mopho does not have a full hardware reset, but select this Reset Globals —...

  • Page 21: Program Parameters

    Program Parameters All Program parameters can be edited using any of A controls. To assign a parameter to a control, press the A button to light the LED, and then turn any of the knobs (1 through 4) to select a parameter.

  • Page 22: Miscellaneous Oscillator Parameters

    Display Waveshape No output Osc Off Sawtooth Sawtooth Triangle Triangle Sawtooth — Triangle mix Saw-Tri Pulse Wave, with pulse width ranging from minimum Pulse xx (0) to maximum (99). The pulse width will turn off at the two extremes — this allows some interesting modulation possibilities.

  • Page 23: Mixer Parameters

    The amount of random oscillator frequency slop. The analog Osc Slop: 0…5 — oscillators in Mopho are very accurate, and will not drift. This works great for accurate sounds, and allows precise de-tuning. The Oscillator Slop parameter allows subtle amounts of frequency drift. For larger amounts, use a random LFO or white noise mod.

  • Page 24: Vca Parameters

    Resonance: 0…127 — the filter will self-oscillate in 4-pole mode. If the filter does not oscillate, switch to 4-pole mode. Keyboard Amount: 0…127 — filter cutoff. A setting of 64 will step the filter one semitone for each note, 32 would be half-semitones, and so on.

  • Page 25: Lfo Parameters

    Env Amount: 0…127 — Env Velocity: 0…127 — level of the VCA envelope. Sets a delay between the time the amplifier envelope is Delay: 0...127 — triggered and when the Attack portion actually begins. Sets the Attack time of the VCA ADSR envelope generator. Attack: 0…127 —...

  • Page 26: Envelope 3 Parameters

    3 Steps 2 Steps 1.5 Step 1 Step 2/3 Step 1/2 Step 1/3 Step 1/4 Step 1/6 Step 1/8 Step 1/16Step Selects the LFO waveshape: Shape: see table — Display Triangle Rev Saw Sawtooth Square Random Sets the amount of LFO routed to the destination. Amount: 0…100 —...

  • Page 27: Modulation Parameters

    Sets a delay between the time Envelope 3 is triggered and Env Delay: 0…127 — when the Attack portion actually begins. Sets the Attack time of Envelope 3. Env Attack: 0…127 — Sets the Decay time. Env Decay: 0…127 — Sets the Sustain level.

  • Page 28: Push It Switch Parameters

    Selects the destination to which the mod wheel is Mod Wheel Destination — routed. See Modulation Destinations on page 26 for a list of possible destinations. Sets the maximum amount of modulation that Press Amount: -127…+127 — can be applied from MIDI Channel Pressure (aftertouch). Selects the destination to which the Channel Pressure is Press Destination —...

  • Page 29: Clock Parameters

    Somewhat realated, the Audio In setting will generate a gate from the Audio Input. When the signal gets above a certain level, the gate will go on. When it drops below that level, the gate will go off. Clock Parameters The sequencer and arpeggiator share the BPM and C Sets the programmed tempo for the sequencer in BPM (beats BPM: 30…250 —...

  • Page 30: Sequence Parameters

    Display Down Up Down Assign Turns the arpeggiator on and off. Turning it on will turn off On/Off: Off, On — the Sequencer if it is on. Sequence Parameters Mopho features a 4 x 16 “analog-style” step sequencer that can generate four separate sequence tracks of up to 16 steps each.

  • Page 31: Name Parameter

    Seq Trigger: see table — Display Normal No Reset No Gate NoGateNR Key Step Audio In Turns the sequencer on and off. On/Off: Off, On — Seq 1, 2, 3, or 4 Destinations — sequence tracks. For a complete list, see Modulation Destinations on page 26. Seq 1, 2, 3, or 4 Steps: C0…D5+ or 0…125, Reset, Rest —...

  • Page 32: Modulation Destinations

    Modulation Destinations Display Destination No destination selected Oscillator 1 Frequency Osc 1 Freq Oscillator 2 Frequency Osc 2 Freq Oscillator 1 and 2 Frequency OscAllFreq Oscillator Mix Osc Mix Noise Level NoiseLevel Oscillator 1 Pulse Width Osc1 PulsW Oscillator 2 Pulse Width Osc2 PulsW All Oscillators Pulse Width Osc All PW...
  • Page 33 All Envelope Release Rates EnvAll Rel Modulator 1 Amount Mod 1 Amt Modulator 2 Amount Mod 2 Amt Modulator 3 Amount Mod 3 Amt Modulator 4 Amount Mod 4 Amt Mixer Audio In Volume AudioInVol Sub Oscillator 1 Level Sub Osc 1 Sub Oscillator 2 Level Sub Osc 2...

  • Page 34: Modulation Sources

    Modulation Sources Display Source No source selected Sequence 1 Sequence1 Sequence 2 Sequence2 Sequence 3 Sequence3 Sequence 4 Sequence4 LFO 1 LFO 1 LFO 2 LFO 2 LFO 3 LFO 3 LFO 4 LFO 4 Filter Envelope Filt Env1 Amp (VCA) Envelope VCA Env 2 Envelope 3 Envelope3...

  • Page 35: Parameter List

    Parameter List Osc 1 Frequency Osc 1 Fine Freq Oscillator 1 Shape Oscillator 1 Glide Osc 1 Key Track Sub Osc 1 Level Osc 2 Frequency Osc 2 Fine Freq Oscillator 2 Shape Oscillator 2 Glide Osc 2 Key Track Sub Osc 2 Level Osc Hard Sync Oscillator Mix...

  • Page 36: Midi Implementation

    MIDI Implementation Mopho receives MIDI data according to the mode controls under G addition, there is interaction between some of the Program parameters that determine the overall response of Mopho to MIDI data. Following are the Global parameters that affect response to MIDI: MIDI Channel: ALL, 1…16 —...
  • Page 37 Received Channel Messages Status Second 1000 nnnn 0kkkkkkk 1001 nnnn 0kkkkkkk 1010 nnnn 0kkkkkkk 1011 nnnn 0vvvvvvv 1100 nnnn 0ppppppp 1101 nnnn 0vvvvvvv 1110 nnnn 0vvvvvvv Notes: 0kkkkkkk nnnn 0vvvvvvv Received Controller Messages Status Second 1011 nnnn 1011 nnnn 1011 nnnn 1011 nnnn 1011 nnnn 1011 nnnn...
  • Page 38 Transmitted Controller Messages Status Second 1011 nnnn 0000 0111 1011 nnnn 0010 0000 See sections below for additional Continuous Controller (CC) and Non- registered Parameter Number (NRPN) messages transmitted. Additional Continuous Controllers (CCs) Transmitted/Received The following table details how CCs are mapped onto Mopho’s controls. They are transmitted when MIDI Parameter Send is set to CC in Global, and recognized when received when MIDI Parameter Receive is set to either CC or All in Global.

  • Page 39: Nrpn Messages

    NRPN Messages The Non-Registered Parameter Number (NRPN) MIDI messages are used to transmit and receive both global and program parameters. They are transmitted when MIDI Parameter Send is set to NRPN 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 using the NRPN CC commands in running status byte format.

  • Page 40: Global Parameter Data

    Received NRPN Messages Status Second 1011 nnnn 0110 0011 1011 nnnn 0110 0010 1011 nnnn 0000 0110 1011 nnnn 0010 0110 1011 nnnn 0110 0000 1011 nnnn 0110 0001 1011 nnnn 0010 0101 1011 nnnn 0010 0100 Global Parameter Data The following table shows the Global data that is sent and received on global parameter dumps, and the corresponding NRPN number when sent/received individually.

  • Page 41: Program Parameter Data

    0 - 5 0 - 1 Program Parameter Data The following table lists Mopho’s voice parameters. The parameter number in the program and edit buffer dumps are different than the NRPN numbers as seen; this was to maintain NRPN compatibility with the Prophet ’08 as much as possible.
  • Page 42 0 - 5 Key Assign Mode: Low note priority Low note priority with re-trigger High note priority High note priority with re-trigger Last note hit priority Last note hit priority with re-trigger 0 - 127 Oscillator 1 - 2 Mix 0 - 127 Noise Level 0 - 127...
  • Page 43 0 - 4 0 - 127 0 - 46 0 - 1 0 - 166 0 - 4 0 - 127 0 - 46 0 - 1 0 - 166 0 - 4 0 - 127 0 - 46 0 - 1 0 - 166 0 - 4 0 - 127...
  • Page 44 0 - 46 Mod 2 Destination; See Modulation Destination list below 0 - 22 Mod 3 Source; See Modulation Source list below 0 - 254 Mod3 Amount; -127 to +127 0 - 46 Mod 3 Destination; See Modulation Destination list below 0 - 22 Mod 4 Source;...
  • Page 45 0 - 46 0 - 46 0 - 46 0 - 46 0 - 183 0 - 183 0 - 183 0 - 183 109— 120-135 120-135 0 - 127 136-151 136-151 0 - 126 152-167 152-167 0 - 126 168-183 168-183 0 - 126...
  • Page 46 The following tables list the values used with the program parameters to specify modulation destinations and sources. Mod Destinations Osc 1 Freq Osc 2 Freq Osc 1 and 2 Freq Osc Mix Noise Level Osc 1 Pulse Width Osc 2 Pulse Width Osc 1 and 2 Pulse Width Filter Frequency Resonance...

  • Page 47: Sysex Messages

    Sub Osc 1 Level Sub Osc 2 Level Mod Sources Sequence Track 1 Sequence Track 2 Sequence Track 3 Sequence Track 4 LFO 1 LFO 2 LFO 3 LFO 4 Filter Envelope Amp Envelope Envelope 3 Pitch Bend Mod Wheel Pressure MIDI Breath MIDI Foot...
  • Page 48 0000 0110 Inquiry Message 0000 0010 Inquiry Reply 0000 0001 DSI ID 0010 0101 Mopho ID (Family LS) 0000 0001 Family MS 0000 0000 Family Member LS 0000 0000 Family Member MS 0jjj nnnn Main Software version: jjj — Minor rev; nnnn — Major rev 0000 0000 Zero Byte 0000 0000...
  • Page 49 Request Global Parameter Dump Status Description 1111 0000 System Exclusive (SysEx) 0000 0001 DSI ID 0010 0101 Mopho ID 0000 1110 Request Global Parameter Transmit 1111 0111 End of Exclusive (EOX) Mopho will respond by sending out the current values of Global Parameters in the format described below in Global Parameters Data Dump.

  • Page 50: Packed Data Format

    Global Parameters Data Dump Status Description 1111 0000 System Exclusive (SysEx) 0000 0001 DSI ID 0010 0101 Mopho ID 0000 1111 Main Parameter Data 0vvv vvvv 20 nibbles (LS then MS) for 10 Global parameters. Global Parameters are listed starting on page 34. 1111 0111 End of Exclusive (EOX) Note: The Global Parameters Data Dump is not recognized when received;...
  • Page 52 Dave Smith Instruments 1590 Sylvaner Avenue Saint Helena, CA 94574-2340 www.DaveSmithInstruments.com...

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