import type { OnDestroy } from '@angular/core';
import type { AudioParamInput } from '../types/audio-param-input';
import * as i0 from "@angular/core";
export declare class WebAudioGain extends GainNode implements OnDestroy {
    gainParam?: AudioParamInput | string;
    constructor(gainArg: AudioParamInput | string | null);
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<WebAudioGain, [{ attribute: "gain"; }]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<WebAudioGain, "[waGainNode]", ["AudioNode"], { "channelCount": { "alias": "channelCount"; "required": false; }; "channelCountMode": { "alias": "channelCountMode"; "required": false; }; "channelInterpretation": { "alias": "channelInterpretation"; "required": false; }; "gainParam": { "alias": "gain"; "required": false; }; }, {}, never, never, true, never>;
}