import { AbstractAudioNode } from "./abstractAudioNode";
import type { AudioEngineV2 } from "./audioEngineV2";
/**
 * Abstract class for the main audio output node.
 *
 * A main audio output is the last audio node in the audio graph before the audio is sent to the speakers.
 *
 * @see {@link AudioEngineV2.mainOut}
 * @internal
 */
export declare abstract class _MainAudioOut extends AbstractAudioNode {
    protected constructor(engine: AudioEngineV2);
}