ADDAC Systems - 403 VC Time Signature Clock Sources

ADDAC's long-awaited 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 straightforward unit.

The module is built around an extremely stable digital clock with over-time drift compensation, adjustable to any beats per minute (BPM) up to 1 decimal place (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], generates 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 offset/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.

Four modes allow different [TRIGGER] and [MUTE] functionalities: they can run in 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 allows delaying 1 beat at [Every X Beats]. The [Delay] knob sets the delay as 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.

All sections feature their own monitor LEDs.

By default, the display shows the current time signature status. Pressing the [SHOW/MENU] button sequentially will display each section's settings. After 3 seconds it automatically returns to the 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.

Refer to the ADDAC403 User's Guide for further in-depth descriptions.