import { LitElement, PropertyValues, TemplateResult, CSSResult } from 'lit';
import { GetAnalyzedDataFunction, VisualizationMode } from './types.js';
/**
 * Audio visualization web component.
 */
export declare class AudioVizElement extends LitElement {
    static styles: CSSResult;
    mode: VisualizationMode;
    colors: string[] | null | undefined;
    minDb: number;
    maxDb: number;
    getAnalyzedData: GetAnalyzedDataFunction | null | undefined;
    private _canvasElement;
    private _resizeObserver;
    private _modeChanged;
    private _sizeChanged;
    private _width;
    private _height;
    private _animationFrameHandle;
    private readonly _requestAnimationFrameCallback;
    private readonly _throttledResize;
    private _firstUpdateCompleted;
    private _colors;
    constructor();
    connectedCallback(): void;
    disconnectedCallback(): void;
    protected shouldUpdate(changedProperties: PropertyValues): boolean;
    protected render(): TemplateResult;
    protected firstUpdated(_changedProperties: PropertyValues): void;
    private updateAnimationFrame;
    private updateWaveform;
    private updateSpectrogram;
    private resize;
}