• Index
• Download/Links
• Technical details
• Quick-start guide
• Manual
• Algorithms
  • Locating a signal
  • Echo removal
  • Fundamental frequency
  • Mean frequency
  • Median frequency
  • Measuring vibrato
  • Dynamic Time Warping
  • Normalization for DTW
  • Syllable/Song Distances

Median Frequency Calculation

The median frequency of a spectrum is calculated in two steps:
1) The Intensity in the signal in the whole spectrum is summed, and divided by 2
2) The frequency is selected at which the cumulative intensity (i.e. all the intensity values for frequencies lower and including the focal intensity) first exceeds the value calculated in step 1.