Operation Manual
4 Basic Operation If you’re familiar with analog, subtractive synthesis there shouldn’t be anything that looks terribly foreign or strange about Moph
5 Compare—When editing a Program, press COMPARE to hear the saved version. Turn COMPARE off to return to the edited version. COMPARE can also be use
6 TAP TEMPO can also be used to change the tempo while a sequence is playing. If SHIFT is on while a sequence is playing, tap the button 5 times and
8 Global Parameters Mopho x4’s Global parameters affect all programs globally. Examples include MIDI channel and fine tune. To edit the Global parame
9 MIDI SysEx: Off, On—When On, the synth will respond to received MIDI SysEx messages, and will transmit them, when prompted, to the MIDI Out. See S
10 Jump mode uses an absolute value based upon the position of the pot when edited: turn a pot and the value jumps immediately from the stored value
11 BalanceTweak1 - BalanceTweak4: -14…14—Adjusts the left/right output balance of each voice by approximately +/- 4 dB. MIDI SysEx Dump: see table—
12 Oscillators Mopho x4 has two digitally controlled analog oscillators, or DCOs, per voice. “Digitally controlled” does not mean the oscillators th
13 wave, higher values widen it. At the extreme values, the pulse goes completely flat, which allows for some interesting possibilities with pulse w
14 Glide Mode: FixRate, FixRate A, FixTime, FixTime A—Determines how the oscillators respond when GLIDE is on. FixRate: The time to transition betwee
15 Mixer The Mixer section balances the levels of the outputs of the Oscillators section and noise generator, and the Audio In/feedback loop before
16 Filter Mopho x4 features a selectable 2- or 4-pole, low-pass filter per voice. 4-Pole—Selects the filter configuration. When lighted, the filter
17 Envelopes Mopho x4 has three 5-stage (Delay + ADSR) envelope generators per voice. Two are dedicated—one to the filter and the other to the ampl
18 LFO Mopho x4 has four low frequency oscillators (LFOs) per voice. The LFOs can be free-running, synced to keystrokes, or synced to the sequencer
19 Tip: The sequencer must be on for the LFO to sync, even if all four sequence destinations are set to Off. The sequencer will still gate the envel
20 Sequencer For many musicians, the term sequencer has become synonymous with MIDI sequencer; that is, a computer-based application or dedicated ha
21 does not respond to MIDI start/stop/continue messages, but it can still sync to an external clock. Simply turn on the sequencer and then play and
22 Sequence one has an additional value, Rest, that appears in the list after Reset. Rest prevents the envelopes from being gated by the correspondin
23 To avoid having to hold a key down, set the Push It Mode (Misc. Parameters) to Toggle. Then use PUSH IT to start and stop the sequencer. You may
Mopho x4 Operation Manual Version 1.0 July 2012 Dave Smith Instruments 1527 Stockton Street, 2nd Floor San Francisco, CA 9413
24 Note: Depending upon the BPM and CLOCK DIVIDE settings, the slew rate can actually exceed the time the envelopes are gated on, causing a step in t
25 Modulators Modulators lets you configure the modulation routing and amount for Mopho x4’s four general-purpose modulation slots. Since each Moph
26 Miscellaneous Modulators There are certain standard controllers that Mopho x4 consigns to dedicated modulators, things like mod wheel, pressure (
27 Clock The Clock section contains the controls for the internal clock tempo and the note value for the arpeggiator and sequencer (and LFO, when C
28 When ArpLatch is set to Normal and latch is on, pressing one or more keys and then removing your hands from the keyboard will latch the played not
29 Note: BPM is based on quarter notes, so clock divisions are relative to a quarter-note beat. For example, when CLOCK DIVIDE is set to Eighth, two
30 Miscellaneous Parameters Miscellaneous Parameters groups together programmable parameters that do not conveniently fall into any obvious section
31 destination will individually move each voice from its static position as set by PAN SPREAD. Push It Mode: Normal, Toggle—When set to Normal, PUS
32 Modulation Sources Display Source Off No source selected Sequence1 Sequence 1 Sequence2 Sequence 2 Sequence3 Sequence 3 Sequence4 Sequence 4 LFO 1
33 Modulation Destinations Display Destination Off No destination selected Osc 1 Freq Oscillator 1 Frequency Osc 2 Freq Oscillator 2 Frequency OscAl
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmfu
34 Mod 3 Amt Modulator 3 Amount Mod 4 Amt Modulator 4 Amount Fback Amt Feedback Amount Sub Osc 1 Sub Oscillator 1 Level Sub Osc 2 Sub Oscillator 2 Le
35 Using USB Mopho x4’s USB 2.0 port enables bidirectional MIDI communication with a computer. A MIDI interface and MIDI cables are not necessary, j
36 Windows Vista and Windows 7 behave the same as XP, but the device name is DSI Mopho x4 rather than USB Audio Device. In Windows, if you unplug the
37 Using Poly Chain Mopho x4’s Poly Chain output enables it to be connected to other DSI synths for up to 20-voice polyphony. Products that can be c
38 Note: If syncing to an external MIDI clock, set MIDI Clock (Global menu) on the master and any intermediate units to MIDI In/Out. Set the last ins
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40 Support Troubleshooting Here are a few suggestions for resolving problems that may occur. The sequencer has stopped running. Make sure Clock in th
41 Warranty Repair Dave Smith Instruments warrants that Mopho x4 will be free from defects in materials and/or workmanship for 1 year from the date
42 MIDI Implementation Mopho x4 receives MIDI data according to the mode controls under GLOBAL. In addition, there is interaction between some of the
43 MIDI Messages System Real-time Messages Status Description 1111 1000 MIDI Timing Clock Received Channel Messages Status Second Third Descript
Contents Quick Start ... 1Getting Connected ...
44 Transmitted Channel Messages Status Second Third Description 1000 nnnn 0kkkkkkk 0000000 Note Off. 1001 nnnn 0kkkkkkk 0vvvvvvv Note On. 1011 nnn
45 Additional Continuous Controllers (CCs) Transmitted/Received The following table details how CCs are mapped onto Mopho x4’s controls. They are t
46 NRPN Messages The Non-Registered Parameter Number (NRPN) MIDI messages are used to transmit and receive both global and program parameters. They a
47 Received NRPN Messages Status Second Third Description 1011 nnnn 0110 0011 0vvvvvvv NRPN parameter number MSB CC 1011 nnnn 0110 0010 0vvvvvvv NR
48 Param NRPN Range Description 8 406 0 - 1 MIDI Out Select*: 0 MIDI Out 1 MIDI Thru 9 387 0 - 6 Poly Chain*: 0 Off 1 Out 1 2 Out 4 3 Out 5 4
49 Program Parameter Data The following table lists Mopho x4’s voice parameters. The parameter number in the program and edit buffer dumps are diffe
50 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 Env
51 49 44 0 - 127 LFO 2 Amount 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 -
52 85 83 0 - 254 Pressure Amount; -127 to +127 86 84 0 - 47 Pressure Destination; See Modulation Destination list below 86 85 0 - 254 Breath Amount;
53 103 97 0 - 14 Arpeggiator Mode: 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 O
54 The following tables list the values used with the program parameters to specify modulation destinations and sources. Mod Destinations Value Off 0
55 Mod 1 Amt 40 Mod 2 Amt 41 Mod 3 Amt 42 Mod 4 Amt 43 Feedback Amt 44 Sub Osc 1 Level 45 Sub Osc 2 Level 46 Feedback Gain 47 Slew* 48 *Appears as a
56 Sysex Messages Universal System Exclusive Message (Device Inquiry) Status Description 1111 0000 System Exclusive (SysEx) 0111 1110 Non-realtime m
57 Request Program Edit Buffer Dump Status Description 1111 0000 System Exclusive (SysEx) 0000 0001 DSI ID 0010 1001 Mopho x4 ID 0000 0110 Reques
58 Program Edit Buffer Data Dump Status Description 1111 0000 System Exclusive (SysEx) 0000 0001 DSI ID 0010 1001 Mopho x4 ID 0000 0011 Edit Buffe
59 “Hidden” Functions The term “hidden function” has an air of mystery and secrecy about it, but it simply refers to commands that are rarely used a
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Dave Smith Instruments 1527 Stockton Street, 2nd Floor San Francisco, CA 94133 USA www.DaveSmithInstruments
1 Quick Start Thanks for purchasing your Mopho x4 synthesizer! Listen to the sounds, twiddle some knobs, have some fun! Please Register! Please go t
2 Summary You should be up and running now; for more operation information, read on. Or, just look up specific parameters for detailed notes. Pages 3
3 Getting Connected Mopho x4 has several inputs and outputs on its back panel. Power Input — Connect the power supply included with your Mopho x4. T
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