This is the theoretical model:
This graph shows the raw data recorded by the Hanford, Washington and Livingston, Lousiana Observatories of a gravitational wave sampled at 4096 Hz. It is also demonstating the legends and tools of the webcharts.
This is a 32 seconds long fragment of the original signal recorded by both the Hanford and Livingston Observatories sampled at 4096 Hz.
Amplitude spectral density:
The next graph is the spectrogram of the whitened signal recorded by the Handford Observatory zoomed in around the moment of the merging of the two black holes.
Whitened and [20, 300] Hz bandpass filter:
The signal is in the hearing range. Click here to listen to it.