/**
 * HTML5 audio playback for native-animation sound actions (`p:snd` / `p:stSnd`),
 * ported from the Vue / React bindings' `animation-sound`.
 *
 * A single shared audio element means only one animation sound plays at a time,
 * matching PowerPoint: a new sound replaces any in-progress animation sound.
 *
 * @module presentation/animation-sound
 */
/**
 * Play a sound file during animation. Stops any previously playing animation
 * sound first. Silently ignores autoplay restrictions and unplayable sources.
 *
 * @param soundUrl - Blob URL or data URL of the sound file.
 * @param loop - When true, repeat the sound until it is stopped or replaced.
 */
export declare function playAnimationSound(soundUrl: string, loop?: boolean): void;
/** Stop any currently playing animation sound. */
export declare function stopAnimationSound(): void;
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