What's new

What changed in recent versions of SpellSynth.

Verified for version 1.5.0 · Updated October 15, 2026

1.5.0 — Bonjour: The French Edition

SpellSynth speaks French. Pick FRANÇAIS under VOICE LANGUAGE in Settings and the voice, the words and the game screens all switch over.
Built after the 1981 French edition of the spelling toy: ÉPELLE, MYSTÈRE and DIS-LE with 360+ French words, plus an apostrophe key for words like L'ÉCOLE.
Accents show on the display but are never typed — spell ÉCOLE as E-C-O-L-E, just like the original.
The AUv3 speaks French too: set Language to Français, then type a word or put French words on the SEQ steps. Every vintage voice works in both languages.
In the AUv3, switch-type knobs such as MIDI Mode now snap to their options, so the knob always matches what the plug-in plays.
The AUv3 no longer ships default MIDI CC bindings, so a host's mod wheel can't pull the pitch down two octaves. MIDI Learn is how you bind a CC.
The plug-in's knobs now follow host automation and MIDI CC, and SEQ follows the host's stop in more hosts.

Type anything into the AUv3 and it speaks. The plug-in now synthesises words it has never seen, inside the extension.
A word rendered in the plug-in is free in the app: both read the same cache.
Anything already on disk stays instant. Only a genuinely new word pauses, showing SYNTH... while it renders.

New SEQ mode, in the app and the AUv3: a 16-step sequencer that speaks one word per step through the chosen voice.
Type a letter instead of a word and that step uses the pre-recorded alphabet voice. Two new factory presets show both: Robot Chant and Spelling Bee.
FIT varispeeds each word to exactly fill its step.