node_modules/three/src/audio/AudioAnalyser.d.ts

export class AudioAnalyser {
  constructor(audio: any, fftSize: number);

  analyser: any;
  data: Uint8Array;

  getFrequencyData(): Uint8Array;
  getAverageFrequency(): number;

  /**
   * @deprecated Use {@link AudioAnalyser#getFrequencyData .getFrequencyData()} instead.
   */
  getData(file: any): any;
}