text: var bufferSize = 2048;
  var sampleRate = 44100;
  var frequency = FREQUENCY || 440;
  
  var fft = new FFT(bufferSize, sampleRate);
  var osc = new Oscillator(DSP.SAW, frequency, 1.0, bufferSize, sampleRate);
  var signal = osc.generate();
  
  var duration = benchmark(function() { fft.forward(signal); });
  
  var peakBand = 0;
  
  for (var i = 0; i < fft.spectrum.length; i++) {
    peakBand = (fft.spectrum[i] > fft.spectrum[peakBand]) ? i : peakBand;
  }
  
  var peakFreq = fft.getBandFrequency(fft.peakBand);
  
  print("Detected peak: " + peakFreq + " Hz (error " + Math.abs(peakFreq - frequency) + " Hz)");
  print("10000 FFTs: " + (duration) + " ms (" + ((duration) / 10000) + "ms per FFT)\n");
  