import type { OnDestroy } from '@angular/core';
import type { AudioParamInput } from '../types/audio-param-input';
import * as i0 from "@angular/core";
export declare class WebAudioBiquadFilter extends BiquadFilterNode implements OnDestroy {
    detuneParam?: AudioParamInput;
    frequencyParam?: AudioParamInput;
    gainParam?: AudioParamInput;
    qParam?: AudioParamInput;
    constructor(detuneArg: string | null, frequencyArg: string | null, gainArg: string | null, QArg: string | null);
    protected static init(that: WebAudioBiquadFilter, node: AudioNode | null): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<WebAudioBiquadFilter, [{ attribute: "detune"; }, { attribute: "frequency"; }, { attribute: "gain"; }, { attribute: "Q"; }]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<WebAudioBiquadFilter, "[waBiquadFilterNode]", ["AudioNode"], { "type": { "alias": "type"; "required": false; }; "channelCount": { "alias": "channelCount"; "required": false; }; "channelCountMode": { "alias": "channelCountMode"; "required": false; }; "channelInterpretation": { "alias": "channelInterpretation"; "required": false; }; "detuneParam": { "alias": "detune"; "required": false; }; "frequencyParam": { "alias": "frequency"; "required": false; }; "gainParam": { "alias": "gain"; "required": false; }; "qParam": { "alias": "Q"; "required": false; }; }, {}, never, never, true, never>;
}