User Manual
Table Of Contents
- Evolver Operation Manual
- Dave Smith Instruments
 - 1210 Cabrillo Hwy N
 - Half Moon Bay, CA 94019-1449
 - For Technical Support, E-mail to:support@davesmithinstruments.com
 - Contents
 - Quick Start 6
 - Basic Operation FAQs 11
 - Inside Evolver 12
 - Signal Flow Diagram 13
 - Main Parameters 14
 - Sequencer Operation 18
 - Program Parameters 21
 - Modulation Destination Table 38
 - Modulation Source Table 40
 - MIDI Implementation 41
 - Welcome…
 - Register
 - Version 3.0 Notes
 - Quick Start
 - Program Notes
 
 - Bank 1
 - Bank 4
- Programs 80 – 128 are sounds meant to played from a keyboard; some have sequences programmed, and some do not. Most respond in different ways to keyboard pressure and mod wheel.
 - Special thanks to Program contributors, including:
 - Craig Wiper
 - Basic Operation FAQs
- The Analog Side
 - The Digital Side
- Sequencer Operation
 - While the sequencer is running, if you hold the Shift button when you hit the Stop button, the sequence will continue running until finished (according to the length of Sequence 1), and will stop after playing step 1.
 - A simple “tap tempo” feature is available. With the sequencer off, hold the Reset button, and then hold the Start/Stop button for a count of four; then lift up the Start/Stop button in time. The sequencer will start with the new tempo. Note – the actual speed will depend on the Clock Divide setting. The count will match if Clock Divide is set to 4n. If set to 8n, it will play twice as fast as your “tap”, and so forth.
 - Program Parameters
 
 - Display
 - Destination
 - 0ff
 - No destination selected
 - 01F
 - Oscillator 1 Frequency
 - 0AL
 - Oscillator All Level
 - noL
 - Noise Level
 - El
 - External In Level
 - 01P
 - Oscillator 1 Pulse width
 - F43
 - Frequency Mod (FM) Amount; Osc 4 -> 3
 - F34
 - Frequency Mod (FM) Amount; Osc 3 -> 4
 - R43
 - Ring Mod (Amplitude) Amount; Osc 4 -> 3
 - R34
 - Ring Mod (Amplitude) Amount; Osc 3 -> 4
 - FL
 - Lowpass filter frequency
 - FLS
 - Filter Split –separation between left / right
 - Res
 - Resonance
 - UCA
 - VCA amount
 - Fbf
 - Feedback frequency
 - Fba
 - Filter Amount
 - Dt1
 - Delay 1 Time
 - DA1
 - Delay 1 Amount
 - L1f
 - LFO 1 Frequency
 - L2f
 - LFO 2 Frequency
 - L3f
 - LFO 3 Frequency
 - L4f
 - LFO 4 Frequency
 
 
 - Additional Sequencer-Only Modulation Destinations
- Display
 - Destination
 - CL0
 - Sequencer clock (BPM) multiplier
 - n0
 - MIDI note number
 - uel
 - MIDI Velocity
 - Modulation Sources
 - Display
 - Source
 - 0ff
 - No Source selected
 - SE1
 - Sequence 1
 - fen
 - Filter Envelope
 - MIDI Implementation
- MIDI Messages
 - System Exclusive Messages
 - 0
 - No destination selected
 - 1
 - Oscillator 1 Frequency
 - 10
 - Oscillator All Level
 - 11
 - Noise Level
 - 12
 - External In Level
 - 13
 - Oscillator 1 Pulse width
 - 16
 - Frequency Mod (FM) Amount; Osc 4 -> 3
 - 17
 - Frequency Mod (FM) Amount; Osc 3 -> 4
 - 18
 - Ring Mod (Amplitude) Amount; Osc 4 -> 3
 - 19
 - Ring Mod (Amplitude) Amount; Osc 3 -> 4
 - 20
 - Filter frequency
 - 21
 - Filter Split –separation between left / right
 - 22
 - Resonance
 - 23
 - Highpass Frequency
 - 24
 - VCA amount
 - 25
 - Pan
 - 26
 - Feedback frequency
 - 27
 - Feedback Amount
 - 28
 - Delay Time 1
 - 29
 - Delay Time 2
 - 30
 - Delay Time 3
 - 31
 - Delay Time All
 - 32
 - Delay Amount 1
 - 33
 - Delay Amount 2
 - 34
 - Delay Amount 3
 - 35
 - Delay Amount All
 - 36
 - Delay Feedback 1
 - 37
 - Delay Feedback 2
 - 38
 - LFO 1 Frequency
 - 39
 - LFO 2 Frequency
 - 40
 - LFO 3 Frequency
 - 41
 - LFO 4 Frequency
 - Sequencer only destinations
 - 69
 - Tempo Clock multiplier
 - 70
 - MIDI Note Out
 - Modulation Sources
 - 0
 - No Source selected
 - 1
 - Sequence 1
 - 9
 - Filter Envelope
 
 
 
Feedback 2: 5 7   0…100  Amount of feedback from the summed output of all 
the delay taps to the input of the filter for more extreme effects. 
Time 2: 5 4 S   0…150, sync Sets the delay time of the second delay tap, same 
ranges as Time 1. 
Level 2: 5 5 S 0…100 Sets the delay amount of the second delay tap. 
Time 3: 5 6 S 0…150, sync Sets the delay time of the third delay tap, same 
ranges as Time 1. 
Level 4: 5 7 S 0…100 Sets the delay amount of the third delay tap. 
LFOs 
There are four identical Low Frequency Oscillators (LFOs) in Evolver. Following is the 
description of LFO 1; the other three are the same, but obviously in different matrix 
locations. 
Frequency: 6 1 0…150, sync  Selects the frequency of LFO. Range 0 – 150 for 
unsynced LFO; speed ranges from slow (30 seconds) to very fast – at 90 (8 HZ, C-2) 
and above the speed steps in semitones, up to 150 (261 Hz, middle C). 
Note - some of the analog functions can’t respond very well to the fastest LFO 
speeds, due to speed limitations of the control voltages; but it will certainly 
generate some interesting sounds. 
Above 150 are the sync speeds as follows: 
Display  Timing Sync 
s32 
Sequence speed divided by 32; i.e. one LFO cycle 
takes 32 steps 
s16 
Sequence speed divided by 16 
s 8 
Sequence speed divided by 8 
s 4 
Sequence speed divided by 4 
s 2 
Sequence speed divided by 2 
s 1 
One cycle per step 
st2 
Two cycles per step 
st4 
Four cycles per step 
st8 
Eight cycles per step 
s16 
Sixteen cycles per step 
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