import { ElementBase, ElementProperties } from './ElementBase';
export interface AudioProperties extends ElementProperties {
    /**
     * Identical to duration from the common properties, but with the addition that it can be set to "media" to make the
     * element as long as the source audio clip.
     */
    duration?: number | string | 'media';
    /**
     * The URL of an audio clip (an mp3) you want to insert. If it was uploaded using the template editor, it may also be
     * its internal GUID.
     */
    source: string;
    /**
     * This optional parameter indicates whether to generate the audio using a third-party AI platform (such as ElevenLabs
     * or OpenAI). Refer to the template editor for details on setting up a provider.
     */
    provider?: string;
    /**
     * Trims the source audio clip to begin at the specified time (in seconds) rather than at the beginning of the audio
     * file.
     */
    trimStart?: number | string;
    /**
     * Trims the source audio clip so that it stops playing after the specified duration (in seconds) rather than at the
     * end of the clip.
     */
    trimDuration?: number | string;
    /**
     * When set to true, the audio clip starts over when it reaches the end.
     */
    loop?: boolean;
    /**
     * Adjusts the volume from 0% to 100%.
     */
    volume?: number | string;
    /**
     * Fades in the volume for the specified duration (in seconds) at the beginning of the audio clip.
     */
    audioFadeIn?: number | string;
    /**
     * Fades out the volume for the specified duration (in seconds) at the end of the audio clip.
     */
    audioFadeOut?: number | string;
}
export declare class Audio extends ElementBase<AudioProperties> {
    type: string;
}