Niagara Drift

A calmer, deeper instrument: slow movement by default, gestures and presets to play, scenes in banks you can crossfade with pressure. Tested on one FM-1. An update from 0.1 keeps your sound and scenes (scenes 1–12 go to bank A, 13–16 to B1–B4).

• A new starting sound (Preset P1, Niagara): slow and breathing, the filters swept by the LFO, the Swell on, delay and reverb in.
• Twelve Presets (SEL + G5), fixed: Niagara, Abyss, Eerie, Glass, Heaven, Tanpura, Tape, Whistle, Howl, Cathedral, Metal, Clean; each its own sound, movement and effects, levelled to each other. With Pitch lock on they keep your pitch. A new FM-1 starts on them.
• Gestures on D5–G5: Weight (a full, warm bass), Shift (both drones move, up to a 5th either way), Clean (the dirt out, as loud), Wash (into the effects). Hold: in while held, out as slowly as you held it; tap: all the way, tap again to let go; SEL as you let go keeps it where it is. PRESETS sets Gesture time (x0.1–x10).
• Scenes in banks: 12 a bank on F3–C5; banks A, B, C and the Presets (SEL + D5..G5). A tap goes there over the Scene time.
• Crossfade by pressure: hold a scene key and press harder to move further into its scene; let go and the sound glides back. Press all the way to land in the scene (the key flashes); SEL while holding keeps the blend between the two. Pressure sensitivity is on Setup 2. The crossfade was Quixotic7's idea; the key pressure is read with MONK-1's method (Charles Vestal), from Velo's sensing.
• Pitch lock (black key 4), on at start: the pitch knobs and scenes leave the pitch alone.
• The left encoders, always live: SELECT the LFO rate, ALGORITHM Movement, PRESETS Gesture time; OCT− / OCT+ pick LFO Wave I / II. Two pages on most page buttons (a button opens the one you last used).
• New sounds and moves: Age (tape: darker, hiss, wow and flutter), Wander (drone II's slow random melody on a scale), Pitch glide, Shift's move, the 17 partner intervals (each tempered, then just), a noise colour blend.
• New effects, after ChoralRoot's (Quixotic7), written anew: a stereo delay (Tape, Wide, Ping-pong, Clean) and an eight-line reverb (Room, Hall, Cathedral, Chorus hall; length to Inf, a freeze). Feedback rings in key and holds its loudness.
• The speaker and headphones: the FM-1 hears which is in use; the speaker gets a low cut, headphones the full range. MASTER's top fifth drives the output harder at the same loudness.
• Level is an audio taper (saved sounds keep their loudness; the numbers read higher). Band-pass and high-pass keep their loudness at high resonance.
• The screen in the site's colours: what's turning shown large; SEL held draws the black keys as on the keyboard, and touching one names it. Lights at several brightnesses: the OCT lights pulse with the LFO waves, ARP breathes with the Swell.
• Knobs catch every click on slow, paused turns.
• Saving and backups: autosave 4 s after the last change, at most every 30 s. fm1_install.py --backup saves your sound, scenes and settings to a file and --restore FILE puts them back; installing over Niagara Drift from the terminal saves a backup first, in ~/niagara-drift-backups/ (the web installer doesn't yet).
• The website: the emulator's FM-1 labelled with what every control does, the manual in the order you meet it (presets, gestures, scenes first), a link preview and an icon.

Thanks to ChoralRoot (Quixotic7) for the effects' design, the crossfade idea and the idea of a backup before installing, and to MONK-1 (Charles Vestal) for reading key pressure.

Install: open the web installer in Chrome or Edge, or from a terminal python3 tools/fm1_install.py niagara-drift-0.2.fwsc. Try it first in the browser: https://evanyerburgh.github.io/niagara-drift/