Chapter 16· Groove OS 1.4

SETTINGS

Play along as you read: Play it live opens a working FM-1, running its real software, on the screen this part of the page is about. Tap a control's name in the text to find it on the panel.

SETTINGS is how the machine behaves: the synth's bend and glide, MIDI, the controls' timing, the hints, startup, Bluetooth, storage and the about page with the crash log. It is also where Learn opens. Press to open it, and again to go back. Inside a course a tap of shows Learn's card instead: hold for a second there to open SETTINGS.

The top level lists:

Row	What it is
`SYNTH ▸`	Bend range, glide, poly and mono.
`MIDI ▸`	Channels, clock, effects over MIDI.
`CONTROLS ▸`	The timing of the controls.
`HINTS`	The hint line: `ON` or `OFF`.
`STARTUP`	`RESUME` or `NEW`.
`BLUETOOTH ↵`	Starts pairing.
`STORAGE ▸`	Free space, put a sound bank back to factory, erase all projects.
`ABOUT ▸`	Version, safe mode, the battery, crash log.
`LEARN ↵`	Opens Learn: the six courses, to start one.

edits a value row; opens a ▸ row or does a ↵ row; goes back.

SYNTH

Row	Values	What it sets
`BEND UP`	1 to 24 semitones	The range of the pitch bend, upwards.
`BEND DOWN`	1 to 24 semitones	Downwards.
`GLIDE`	`FULL`, `FINGER`	Whether glide always slides (`FULL`), or only when you play legato (`FINGER`).
`GLIDE TIME`	0 to 100	How long a slide takes.
`POLY / MONO`	`POLY`, `MONO`	Whether the FM tracks play chords or one note at a time.

These are the synth's own settings, so they apply to every FM track (the same as the PLAY group of the sound editor). They are saved with the project.

Try it·On the FM-1

Turn ALGORITHM to SYNTH, the first row, and press SEL.

ALGORITHMSEL

MIDI

MIDI CH (every track's channel at once), CLOCK (INT, OUT, EXT), FX CC CH (OFF or 1 to 16) and STOCK CH (ALL or 1 to 16): see MIDI and sync.

CONTROLS

Row	Values	What it sets
`BACK TAP`	200 to 400 ms	How long can be held and still count as a tap (back). Held longer, or with anything pressed or turned meanwhile, it is SHIFT. It also sets when the SHIFT keys light (the keys themselves are SHIFT keys from HOME's press).
`WHEEL SETTLE`	150 to 400 ms	How long the wheel must rest before the keys take on the new view's role, so a quick spin past a view never changes what the keys do on the way.
`PREVIEW`	`ON`, `OFF`	Whether the sound browser plays a short preview note as you move through it.

HINTS, STARTUP

HINTS switches the hint line at the bottom of each view (ON or OFF). It is on by default and stays as you set it. The tag that says what the keys do stays either way.
STARTUP is what happens at power-on: RESUME (the default) brings back the session as it was, from the autosave; NEW starts a blank session (four empty tracks, in C major with IN KEY off) and keeps only your favourite and recently used sounds. See PROJECT.

BLUETOOTH

BLUETOOTH ↵ (PAIR) starts the stock firmware's pairing. The toast says BLUETOOTH: SEE HOME LIGHT. On the SETTINGS list, a long press of does the same, as it does on the stock firmware. Bluetooth MIDI itself is the stock implementation.

The same Bluetooth also plays a phone's sound through the FM-1's speaker: pair the phone and play to the FM-1. It is playback only, and at a low volume.

STORAGE

Row	What it does
`FREE`	How many of the project slots are free, as `2 OF 3 SLOTS`.
`RESET BANK ▸`	Pick `BANK A` to `BANK D`: puts that bank's 32 sounds back to the FM-1's factory presets (asks). Otherwise only a bank loaded from the website changes them: see Loading banks from the website.
`ERASE ALL ↵`	Erases all three project slots (asks). The music stops.

LEARN

LEARN lists the six courses that come with 1.4. Turn to one and press : it asks first, with the course's name and THE MUSIC STOPS; turn to START and press . The course starts on a fresh song and uses no song slot until you save it. With unsaved changes it says SAVE YOUR SONG THEN OPEN LEARN first. If the courses are missing, it shows one dimmed row, ADD THE COURSES FROM THE WEBSITE: run the update on the Install page again. See Learn on your FM-1.

ABOUT

Row	What it shows
`GROOVE OS`	The version (`1.4`). The boot screen shows it too.
`ON`	The stock firmware underneath (`STOCK V15`).
`STOCK`	A reminder: `OCT- + OCT+ AT POWER-ON` starts the stock interface (safe mode).
`BATTERY`	The battery as the FM-1 measures it: volts and the raw reading (`3.92 V 608`), and `CHG` while it reads as charging. `NO READING` until the first reading, a second after power-on. The header's battery shows the same reading as bars.
`SOUNDS`	Where the sound banks come from (`GROOVE-OS.COM/SOUNDS`): the website loads them into banks A to D, and PRESETS lists them.
`CRASH LOG n ↵`	How many crash reports the FM-1 keeps. (`SEND OVER USB`) sends them over USB.
`CLEAR LOG ↵`	Erases the crash reports (asks).

See Crash log for what a report holds and what to do with it.

Troubleshooting

What happens	Why, and what to do
There is no brightness setting	The FM-1's backlight is wired always on, so no setting could change it. Groove OS 1.2 removed the row.
The header shows no battery	The battery shows on the views, not on menus, and only once there is a reading, about a second after power-on. Until then SETTINGS > ABOUT > BATTERY says `NO READING`.
The battery shows fewer bars than I expect	The bars follow the voltage, which drops while the FM-1 plays loud and rises at rest. SETTINGS > ABOUT > BATTERY shows the reading itself.
A tap of shows a card, not SETTINGS	You are in a course, where shows Learn's card. Hold for a second for SETTINGS.
Power-on does not bring my session back	`STARTUP` is `NEW`. Set it to `RESUME`.