ADDAC System ADDAC403 User manual

October.2020
USER’S GUIDE . REV01
Instruments for Sonic Expression
Est.2009
ADDAC403
VC TIME SIGNATURE
CLOCK SOURCES
INTRODUCING
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ADDAC403 VC TIME SIGNATURE
CLOCK SOURCES USER’S GUIDE
November.2020Revision.01
Welcome to:
page 2ADDAC SYSTEM
DESCRIPTION
This is our long due Eurorack Clock module, featuring
multiple sections for a combined total of 8 independent
trigger outputs. Introducing standard time signature musical
notation along with the possibility to generate syncopation,
irregular tempo ratios and phasing all at once in a single
straight forward unit.
We started by programming an extremelly stable digital
clock with over time drift compensation and adjustable to
any Beat per Minute [BPM] up to 1 decimal case (from 0.1 to
250.0 BPM).
Also implemented a Tap Tempo button and Pingable input
for syncing to external clocks using either Soft or Hard
[SYNC] modes.
The Time Signature X/Y section defined as
[Beats Per Bar] / [Beat Unit] and generating 4 outputs
triggering at every: Beat, Bar, Odd Beat (1,3,5...) and Even
Beat (2,4,6...).
A [PAUSE] button sets the Pause/Resume state of the clock
also allowing different sync methods on Resume.
A [RESET] button resets either each or both the Main and
Phasing Clocks
A Divider section can be set to any beat division in Linear
(3,4,5,6,7,8,9,10) or Exponential mode (1,2,4,8,16,32,64,128)
The Phasing section features a totally independent clock that can run in two modes:
[TEMPO] running at a slower/faster bpm phasing in and out of tempo against the main clock.
[OFFSET] running at the same bpm but offsetted/delayed against the main clock generating
a steady syncopated beat.
A Tuplet section allows the generation of Triplets, Quintuplets, Septuplets and Ninelets with
adjustable [LENGTH] or Span of the tuplet to any number of Beats from 1 to 16.
4 Modes allow different [TRIGGER] and [MUTE] functionalities: they can run in a loop or one
shot mode, [TRIGGER] always triggers/resets the Tuplet and [MUTE] can be set to Gate On or
Gate Off. Tuplets always output irregular divisions of the Beat and allow Polybeat generation.
A Swing Delay section allow to delay 1 Beat at [Every X Beats]. The [Delay] knob sets the
delay in a fraction of 1 Beat, this section also allows the generation of syncopated beats.
More specific settings can be changed in the [SHOW/MENU], menu functions are labeled in
gold.

DESCRIPTION
CLOCK LOGIC TABLE
ADDAC403 User’s Guide
page 3ADDAC SYSTEM
All sections feature they’re own monitor LEDs.
By default Display shows the current Time Signature status.
Pressing the [SHOW/MENU] button sequentially will display
each sections settings. After 3 seconds it automatically
returns to default Time Signature status.
All settings can be saved to a single memory slot, upon
startup the memory state will be automatically loaded.
All Knobs and Push-Buttons have their own CV/Trigger
inputs except the [BPM] encoder and [SHOW/MENU] button.
All Outputs Trigger/Gate length can be set globally from 1 to 4000 milliseconds.
Tech Specs:
16HP
4cm deep
140mA +12V
40mA -12V
ODDS
BARS
BEATS
TIME SIGNATURE: 5/4
TRIGGER LENGTHS DEPENDS ON TRIGGER LENGTH SETTING
EVENS
DIVIDER: 3
SWING: 2/0.5
TUPLETS: 3/4
PHASING TEMPO: +10
PHASING OFFSET: 32/64
CV and TRIGGER Inputs locations

BEATS GATE OUTPUT
DISPLAY
BARS GATE OUTPUT
ODDS GATE OUTPUT
EVENS GATE OUTPUT
SWING GATE OUTPUT
TUPLETS GATE OUTPUT
page 4ADDAC SYSTEM
ADDAC403 User’s Guide
SIGNAL FLOW DIAGRAM
CLOCK
GENERATOR
SWING DELAY
FREE: 1BEAT / 128
SYNC: 1BEAT / 16
TAP TEMPO
PAUSE
SHOW/MENU
RESET
TAP/PING: TRIGGER INPUT
RESET TRIGGER INPUT
PAUSE TRIGGER INPUT
SYNC: SOFT/HARD
DELAY: FREE/SYNC
TIME SIGNATURE
BEATS PER BAR: 1 to 16
CV INPUT
BARS UNIT: 1 to 32
CV INPUT
EVERY X BEATS: 1 to 16
CV INPUT
DELAY
CV INPUT
TUPLETS
TUPLET TYPE: 3/5/7/9
CV INPUT
LENGTH: 1 to 16 BEATS
CV INPUT
TEMPO (BPM CONTROL)
ENCODER
PHASING GATE OUTPUT
PHASING
PHASING CONTROL
CV INPUT
TYPE: OFFSET/TEMPO OFFSET = PHASE OFFSET
TEMPO = BPM DEVIATION
DIVIDER GATE OUTPUT
DIVIDER
DIVIDER
CV INPUT
TYPE: LIN/EXP LIN: 3/4/5/6/7/9/10
EXP: 1/2/4/8/16/32/64
TAP TEMPO
TAP/PING: TRIGGER INPUT

CLOCK SECTIONS
ADDAC403 User’s Guide
page 5ADDAC SYSTEM
TEMPO (BPM):
BPM can be set with the [BPM] Encoder from 0.1 to 250.0 BPM
BPM can also be set by [TAP TEMPO], push button 4 times to set tempo, likewise for
CV Input.
Button LED will blink at every button push or trigger input.
MENU SETTINGS: There’s 3 Modes for when the Tempo changes to have effect:
INSTANT: Changes have an immediate effect
BEAT: Changes will have effect on the next Beat
BAR: Changes will have effect on the next Bar
MENU SETTINGS: There’s 13 states for dividing/multiplying the incoming Tap /Ping:
DIVISION: 1/1 to 1/8
MULTIPLICATION: 1.5 to 4.0
SYNC:
Both the push-button and cv input will be synced using two methods:
SOFT: Sets new BPM but does NOT sync to the input clock.
HARD: Sets new BPM and syncs to the input clock.
TIME SIGNATURE:
[BEATS P/BAR] sets how many Beats per BAR: 1 to 16
[BEAT UNIT] sets the unit that represents 1 Beat:
1:whole-note, 2:half-note, 4:quarter-note,
8:eight-note, 16:sixteenth-note, 32:thirty-second note
PAUSE:
[PAUSE] will pause the clock while LED is ON
MENU SETTINGS: There’s 3 Modes for when Pause is disengaged:
HOLD: Resumes Clock where it was paused.
BEAT: Resumes Clock and advances to the next Beat
BAR: Resumes Clock and Resets to the Beat 1
MENU SETTINGS: There’s 2 Modes for how Pause behaves:
GATE: Pauses while Button is pressed or Gate In is On:
TOGL: Toggles Pause State

CLOCK SECTIONS
ADDAC403 User’s Guide
page 6ADDAC SYSTEM
RESET:
[RESET] Button and Trigger In immediatelly resets clock
MENU SETTINGS: There’s 3 Reset Modes:
CLOCK: Resets Clock.
BOTH: Resets Clock & Phasing Clock
PHASE: Resets Phasing Clock
SWING DELAY:
Swing [DELAY] delays one Beat [EVERY X BEATS]
[SYNC] The delay can be set to 2 Modes:
FREE (0-63): Divides 1 Beat by 64.
SYNC (0-15): Divides 1 Beat by 16.
TUPLETS:
[TYPE] Triplets, Quintuplets, Septuplets, Ninelets
[LENGTH] Lasting how many Beats (1 to 16)
[TRIGGER] Will Start/Reset the Tuplet
[MUTE] Mutes the Tuplet Output
MENU SETTINGS: How [TRIGGER] and [MUTE] behaves
SHOT: Plays 1 Tuplet then Stops
[TRIGGER] Starts/Reset the Tuplet
[MUTE] Gate ON Mutes Tuplet Output
LOOP: Plays Tuplets in a Loop
[TRIGGER] Reset the Tuplet
[MUTE] Gate ON Mutes Tuplet Output
TOHS: Plays 1 Tuplet then Stops
[TRIGGER] Starts/Reset the Tuplet
[MUTE] Gate OFF Mutes Tuplet Output
POOL: Plays Tuplets in a Loop
[TRIGGER] Reset the Tuplet
[MUTE] Gate OFF Mutes Tuplet Output

CLOCK SECTIONS
ADDAC403 User’s Guide
page 7ADDAC SYSTEM
PHASING:
PHASING generates a secondary clock.
[PHASING] sets the OFFSET/TEMPO deviation
[OFFSET/TEMPO] Sets the Clock Mode:
OFFSET: Offset to the main clock (0/16 to 15/16) - same BPM
TEMPO: BPM decrease/increase from main clock = -16 to +16 BPM
DIVIDER:
[DIVIDER] Sets the Clock Division
[LIN/EXP] Sets the Mode:
LIN: 3, 4, 5, 6, 7, 8, 9, 10
EXP: 1, 2, 4, 8, 16, 32, 64, 128
SHOW/MENU:
Pressing [SHOW] button sequentially shows the current settings
BPM: 0.1 to 250.0
TIME: 01:01 to 16:32
SWING: 00:00 to 16:63
TUPLETS: 03:01 to 09:16
PHASING: -016 to 16
DIVISION: 001 to 128
SHOW/HIDE BEHAVIOUR:
Whenever any change happens to any knob/cv input the display will show the
respective section parameters for 3 seconds.
As this can get confusing when using multiple external CV sources, each section can
be automatic display can be hidden. To hide a section simply press the [BPM] encod-
er while a section is showing and the display will show HIDE informing
the user that the respective section is now hidden and will not be shown when
changes to the controls are made.
To Show parameters again simply press [SHOW] button until the desired section is
shown and press the [BPM] encoder, at each press the display will toggle between
SHOW and HIDE
Lorem ipsum

MENU
ADDAC403 User’s Guide
page 8ADDAC SYSTEM
SHOW/MENU:
To Enter Menu press [MENU] button
for 3 seconds
While in MENU STATE [PAUSE]
button LED will Blink
To Exit Menu press [MENU]
Button one time
Holding [BPM] encoder while
in MENU STATE for 5 seconds
Resets the module to
“Factory Settings”
While in MENU STATE all gold
labelling will be active.
All other parameters are disabled.
While in MENU STATE any time a parameter changes it will be shown in the display.
It is advised to unconnect any CV/TRIGGER while inside the Menu, the incoming CV
will override the knobs and buttons pushes and possibly make undesired changes.
MENU CHEAT SHEAT:
BPM SETTINGS:
[BPM] encoder PRESS: INSTANT / BEAT / BAR
EXTERNAL SYNC SETTINGS:
[TAP TEMPO] button: DIVIDE / MULTIPLY
PAUSE/PLAY SETTINGS:
[PAUSE] button: HOLD / BEAT / BAR
[BEAT UNIT] knob: GATE / TOGGLE
TUPLETS SETTINGS:
[TRIGGER] button; SHOT / LOOP / TOHS / POOL
ALL TRIGGERS LENGTH:
[LENGTH] knob: Length in Milliseconds
RESET SETTINGS:
[RESET] button: CLOCK / BOTH / PHASE

SAVE
ADDAC403 User’s Guide
page 9ADDAC SYSTEM
SAVE:
There’s a single save state that
will be recovered at startup.
To save the current state get inside
the Menu State and press [SAVE]
button once.
The display will then show:
“SAVE”
Press [SAVE] button once more.
The display will then show:
“SURE”
Confirm you wish to overwrite the
memory state by pressing the [SAVE]
button once again.
The display will then show:
“DONE”
Your new settings are now saved!

CONTROLS OVERALL DESCRIPTION
ADDAC403 User’s Guide
page 10ADDAC SYSTEM
TEMPO : BPM
(ENCODER)
TAP TEMPO
SYNC: SOFT/HARD
DIVIDER CONTROL
RESET
BARS CONTROL
PAUSE
BEATS CONTROL
EVENS OUTPUT
ODDS OUTPUT
SWINGED OUTPUT
BEATS OUTPUT
BARS OUTPUT
DIVIDER OUTPUT
DIVIDER:
LINEAR/EXPONENTIAL
PHASING CONTROL
PHASING MODE:
OFFSET/TEMPO
SWING X CONTROL
DELAY CONTROL
TUPLET TYPE
TUPLET TRIGGER
TUPLET LENGTH
TUPLET MUTE
ALL CV & TRIGGER
INPUTS
DELAY MODE:
FREE/SYNC
SHOW/MENU(HOLD)
TUPLETS OUTPUT
PHASING OUTPUT

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ADDAC403 USER’S GUIDE
November.2020Revision.01