export declare enum VoiceEvent {
    Result = "result",
    PartialResult = "partial-result",
    AvailabilityChange = "availability-change",
    ListeningStateChange = "listening-state-change",
    ModelDownloadProgress = "model-download-progress",
    Error = "error"
}
import type VoiceError from '../utils/voice-error';
export interface VoiceEventMap extends Record<VoiceEvent, unknown[]> {
    [VoiceEvent.Result]: [string];
    [VoiceEvent.PartialResult]: [string];
    [VoiceEvent.AvailabilityChange]: [boolean];
    [VoiceEvent.ListeningStateChange]: [boolean];
    [VoiceEvent.ModelDownloadProgress]: [number];
    [VoiceEvent.Error]: [VoiceError];
}
export declare enum VoiceMode {
    Single = "single",
    Continuous = "continuous",
    ContinuousAndStop = "continuous-and-stop"
}
export declare enum VoiceModelDownloadStatus {
    Started = "started",
    Scheduled = "scheduled"
}
export interface VoiceStartListeningOptions {
    /**
     * The locale to use for speech recognition. Defaults to `en-US`.
     */
    locale?: string;
    /**
     * The mode to use for speech recognition. Can either be `continuous` or `single`.
     *
     * - `single`: The speech recognizer will automatically stop after the first utterance or after a period of silence.
     * This period is device-specific and is generally much shorter on Android than on iOS. To continue listening until
     * the user has spoken, use `continuous-and-stop` instead.
     * - `continuous`: The speech recognizer will continue to listen until stopped manually or an error occurs and will
     * emit regular `partial-result` events. When the user stops speaking, it will emit a `result` event and continue
     * listening for more speech.
     * - `continuous-and-stop`: The speech recognizer will continue to listen until stopped manually, an error occurs or
     * after the first utterance. When the user stops speaking, it will emit a `result` event and stop listening.
     *
     * Defaults to `single`.
     */
    mode?: VoiceMode;
    /**
     * The period of silence after the user stops speaking before the speech recognizer emits a `result` event.
     * Provided in milliseconds.
     *
     * Defaults to 1000.
     */
    silenceTimeoutMs?: number;
    /**
     * Whether to try and mute the beep sound Android makes when starting and stopping the speech recognizer. This will
     * mute the device's music and notification audio streams when starting to listen and unmute them when stopping. This
     * does not work on all devices. Defaults to `false`.
     */
    muteAndroidBeep?: boolean;
    /**
     * Whether to force usage of the on-device speech recognizer. Does not have any effect on iOS. Only works on Android
     * 13 and above. Defaults to `false`.
     * Note: When using the on-device recognizer, some locales returned by `getSupportedLocales()` may not be installed
     * on the device yet and need to be installed using `downloadOnDeviceModel()` first.
     */
    useOnDeviceRecognizer?: boolean;
}
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