Buttons and Display

There are five buttons on the Spectraphon: each Side has a SAM/SAO and a Shift button, and additionally there is the Follow/Sync button.

The SAM/SAO buttons switch the respective sides between the modes as listed. The button lights to indicate SAO mode. Note: in firmware sp52 or later, these buttons also access the Noise and Chaos modes.

The Follow/Sync button selects these operations for Side B. It lights for FOLLOW and flashes for SYNC, or is OFF when neither is selected.

The Shift button can be used as a manual Clock (same functions as the Clock input), or can be held to access the Shift functions (written in GOLD) on the other buttons:

Shift+ARRAY begins or ends Array Creation in SAM (per side) (in sp52 or greater, in oscillator modes this button combo switches the Side to low frequency; Shift button stays lit to indicate low frequency)

Shift+CV selects the Sub/CV mode (per side)

Shift+Shift shifts (per side) the Array to be used for SAO or the spot to be written over when creating an Array in SAM. (in sp38 or greater, hold Shift+Shift for 2 seconds to clear the Array and return to default)

The Tuning Beacon displays information about the tuning relationship between the core frequencies of the two Sides of the Spectraphon. It lights Green for the simplest tuning ratios (octaves (2:1), fifths (3:2), and fourths (4:3)) and Red for the next simplest (major thirds (5:4) and sixths (6:5)). This indicator can be especially useful for "dual VCO" patches or when using tuned FM and/or Follow. (Note these are just ratios rather than equal temperament intervals).

The Array Binary consists of four colored LEDs that indicate the current values of the Slide and Focus controls on each Side of the Spectraphon. (In sp52 or greater, these are used to indicate the current Mode). While selecting Arrays, the Array Binary shows the currently selected Array using the four colored LEDs to show a 4 bit binary number.