/** Normalised voice-recognition error. `null` is never surfaced (e.g. aborts). */
export type VoiceInputErrorCode = 'not-allowed' | 'network' | 'no-speech' | 'audio-capture' | 'language-not-supported' | 'phrases-not-supported' | 'unknown';
export interface VoiceInputProps {
    lang?: string;
    onError?: (code: VoiceInputErrorCode) => void;
    onListeningChange?: (isListening: boolean) => void;
}
export interface VoiceInputResult {
    isSupported: boolean;
    isListening: boolean;
    errorCode: VoiceInputErrorCode | null;
    transcript: string;
    start: () => void;
    stop: () => void;
    toggle: () => void;
}
export declare const useVoiceInput: (options: VoiceInputProps) => VoiceInputResult;