import { LitElement, TemplateResult, PropertyValues, CSSResult } from 'lit';
import { VisualizationMode } from './types.js';
/**
 * Audio visualization panel web component.
 */
export declare class AudioVizPanelElement extends LitElement {
    static styles: CSSResult[];
    url: string | undefined;
    mode: VisualizationMode;
    minDb: number;
    maxDb: number;
    dbRangeMin: number;
    dbRangeMax: number;
    colors: string[] | null | undefined;
    elementHeight: string | null | undefined;
    private _remoteSources;
    private _sourceEntries;
    private _settingsElement;
    private _mutationObserver;
    private _childElements;
    disconnectedCallback(): void;
    protected willUpdate(changedProperties: PropertyValues<this>): void;
    protected render(): TemplateResult;
    protected updated(changedProperties: PropertyValues<this>): void;
    private getElementHeight;
}