Spektro Audio ACDGEN User manual

With the new 2.0 firmware, ACDGEN can now sequence four channels
simultaneously and independently.
Each channel can be confi ured via the Software Customizer (MIDI
Channel, MIDI CC number and ran e, and additional ACDGEN settin s).
These settin s are stored in the device’s memory and are automatically
recalled durin the boot process.
The four channels are associated with four dierent colors to help identify
which is active. These colors are displayed when the channel is selected
and when it enerates a note.
Althou h each channel can be confi ured independently, they all follow the
same Key, Scale, and Swin Amount settin s.
To improve the rhythmic relationship between the channels, channels 2-4
have a sequencer oset enabled by default. To disable it, hold Function and
Generate (LED will blink twice in red).
CHANNELS
The hardware potentiometers available on the unit can be used to control
multiple ACDGEN channels and additional parameters.
When selectin a dierent channel or accessin one of the additional
parameters, the potentiometer will only become active once it has reached
the current position for that parameter (similar to a pickup method). The
LED will blink in white to indicate that the potentiometer has become active.
HARDWARE CONTROLS
ALGORITHMS
• Normal:A simple and strai htforward random al orithm.
• Floor: Uses a smaller selection of notes and has a hi her probability of
playin the fundamental / base note ( reat for basslines).
• FifthOct: Limits the note selection to the fundamental / base note and its
fifth.
• Upwards: Generates a sequence that tends to o up in the selected scale.
• Up-Stepped: Similar to Upwards but it can also alternate between hi her
notes and the fundamental / base note.
• Downwards: Generates a sequence that tends to o down in the selected
scale.
• Down-Stepped: Similar to Downwards but it can also alternate between
lower notes and the fundamental / base note.
• Arpware: Combines dierent techniques used in the other al orithms and
re ular arpe iators.
For more information on how to customize your unit via the Software Customizer and control it via MIDI CC, download the full manual at http://spektroaudio.com
LED Blink: Action executed
LED Fade n: Parameter Enabled (ON)
LED Fade Out: Parameter Disabled (OFF)
Certain features can be accessed by holdin down Function, tappin
Generate xnumber of times, and then releasin Function:
• Channel Selector (FN + 1x GEN): Selects to the next ACDGEN channel. The
LED will show the color of the active channel.
• M D CC Sequencer Toggle (FN + 2x GEN, GREEN LED):Enables / Disables the
internal MIDI CC sequencer for the active channel.
• Keyboard Shift Toggle (FN + 3x GEN, PURPLE LED):Enables / Disables
sequence transposition via incomin MIDI notes for the active channel.
• Auto Variate Toggle (FN + 4x GEN, L GHT BLUE LED):Enables / Disables
automatic variation every 4 bars for the active channel.
• Normal / Half Tempo Toggle (FN + 5x GEN, L GHT BLUE LED):Switches
between normal tempo and half-tempo.
• Channels Oset Toggle (FN + HOLD GEN, RED LED):Enables / Disables the
beat / sequencer oset for channels 2-4.
SHORTCUTS (FN + GENERATE)
The ACDGEN hardware unit can send MIDI data to computers and other MIDI-enabled ear via USB and standard MIDI DIN5.
In order to receive MIDI data via its MIDI IN DIN 5 jack, unscrew the unit’s bottom lid and set the dip switch to the ON position (or connect the included jumper
in older hardware revisions).
To clock ACDGEN, either send MIDI Clock from another MIDI ear to ACDGEN or enable the internal clock. Set Density to fully counterclockwise to mute all
notes, hit the Generate button to create a new sequence, and slowly start turnin Density clockwise in order to start sendin MIDI notes to the MIDI
destination (USB port or MIDI OUT port).
GETTING STARTED
• Key: Sets the key for the playback quantizer.
• Scale: To les between minor and major scale.
• Algorithm: Selects which al orithm will be used for pattern eneration.
• Shift: Transposes the pattern diatonically (in key).
• Length: Sets the len th of the pattern (2, 3, 4, 5, 6, 7, 8, 16, or 32).
• Generate: Generates a new pattern / Creates a variation of the current
pattern (lon press, LED blinks twice).
• Function (FN):Modifier button which allows access to additional parameters
(see below).
• Octave (FN + Shift):Shifts the octave of the enerated patterns (this settin
is stored in memory).
• Note Len (FN + Length):Sets the base len th of the enerated MIDI notes.
• Vel RND (FN + Density):Sets the amount of MIDI Velocity randomization.
• nternal Clock (FN + Scale):Enables / disables the internal clock.
• nternal Clock Rate (FN + Key):Sets rate of the internal clock.
• Swing Amount (FN + Algorithm):Sets the amount of swin .
PARAMETERS & FUNCTIONS
ACDGEN
spektroaudio.com
HARDWARE VERSION
USER MANUAL
VERSION 2.0

The unit can be customized via the ACDGEN Customizer software / Max for
Live device.
By clickin on the Save button on the software's UI, your settin s are stored
in the hardware memory and recalled on power up.
• Slide Probability: Adjusts the ratio of note slides in enerated patterns.
• Shift Range: Sets the ran e of the Shift parameter (+/- 12 st, +/- 24 st, or +/-
36 st).
• Shift Mode: Selects which mode will be used to shift / transpose the MIDI
notes.
• Swing Mode: Selects which preset values will be assi ned to the the 6
swin levels.
• Hold Probability: Sets the probability of enerate hold steps (to enerate
notes lon er than 1/16th.
• Scale Range: Sets the ran e of the active intervals available for the first
al orithm.
• M D CC Sequencer Toggle: Enable / Disable the internal MIDI CC
sequencer.
• M D CC Number: Selects the MIDI CC number / destination for the MIDI CC
Sequencer.
• M D CC M N / Max: Sets the minimum and maximum values of the CC
sequence.
• KB Shift: Enables sequence transposition via MIDI notes (received via MIDI
In).
• LED Note Display: Enables / Disables the display of out oin notes on the
LED.
CUSTOMIZATION
1 GENERATE
2 VARIATE
3 SHIFT
4 LENGTH
5 DENSITY
6 ALGORITHM
7 RANDOM VELOCITY
8 OCTAVE
9 NOTE LENGTH
10 BASE VELOCITY
11 SLIDE PROBABILITY
12 HOLD PROBABILITY
13 SCALE RANGE
14 RANDOM MODE
15 SHIFT MODE
16 KEYBOARD SHIFT
17 MIDI CC SEQUENCER TOGGLE
18 MIDI CC NUMBER
19 MIDI CC MIN
20 MIDI CC MAX
127 OUTPUT MIDI CHANNEL
CC # PARAMETER
CHANNEL SETT NGS
MIDI CHANNELS #1-4
While ACDGEN is a enerator it was also desi ned to be controlled via MIDI
Control Chan es.
This allows the user to control parameters, create presets and enerate
new patterns from DAWs or other hardware sequencers.
Channels can be controlled independently via the MIDI Channels 1-4 or
lobally via MIDI Channel 5.
MIDI CC values are automatically mapped from 0-127 to the appropriate
ran e for the specific parameter / settin .
The LED will flash purple whenever the unit receives a MIDI CC messa e.
MIDI CC CONTROL
1 KEY
2 SCALE
3 SWING AMOUNT
4 TEMPO DIVISION
5 SHIFT RANGE
6 LED NOTE DISPLAY
7 MIDI THRU
8 INTERNAL CLOCK OUTPUT
CC # PARAMETER
GLOBAL SETT NGS
MIDI CHANNEL #16
ACDGEN
spektroaudio.com
HARDWARE VERSION
FACTORY RESET
The ACDGEN hardware unit can be reset to its default factory settin s by
performin a Factory Reset.
To perform a Factory Reset set all knobs fully clockwise, Scale to Major, and
power the unit while holdin down the Generate and Function buttons.
The LED will li ht up red for 2 seconds to indicate that the unit has been reset.