getFrequencies(
    analysisType = 'frequency',
    minDecibels = -100,
    maxDecibels = -30
  ) {
    if (!this.analyser) {
      throw new Error('Not connected, please call .connect() first');
    }
    return AudioAnalysis.getFrequencies(
      this.analyser,
      this.sampleRate,
      null,
      analysisType,
      minDecibels,
      maxDecibels
    );
  }
Gets the current frequency domain data from the playing track
@param {"frequency"|"music"|"voice"} [analysisType]
@param {number} [minDecibels] default -100
@param {number} [maxDecibels] default -30
@returns {import('./analysis/audio_analysis.js').AudioAnalysisOutputType}