Sound visualisation

Visualising sound is an important aspect of bioacustics research. Below you can find a code that will produce the three most important plots in a single figure:

1. Oscillogram (time vs. amplitude)

2. Spectrogram* (time vs. frequency)

3. Power spectrum* (amplitude vs. frequency)

*Remember that how spectrograms and power spectra look depends on the parameters used to compute them (window lengths, percent of overlap, type of windowing function...) and how sound was recorded (sampling rate). This implies that that the measures you obtain from them (peak frequencies, frequency bandwidths, Qs, etc...) will also depend on how they were computed...