Events & Callbacks

Input

Per-call callbacks (passed to speak())

Global events (responsiveVoice.addEventListener)

Initializing…

Event reference

OnReady

Fires once when the engine has loaded voices and is ready to speak.

OnVoiceResolved

The requested voice has been resolved to a concrete native or fallback voice.

OnStart

Speech has started for the current utterance.

OnEnd

Speech finished naturally (not cancelled).

OnPause

Playback paused via responsiveVoice.pause(). Browsers auto-cancel after ~60s.

OnResume

Playback resumed via responsiveVoice.resume().

OnError

Synthesis failed; payload is { error: { message } }.

OnPartStart / OnPartEnd

Long text is split into parts; these fire per chunk with { partIndex, totalParts, text }.