Pulsed to tonal strength parameter (PTR)

Parameter to dynamically track the pulsed to tonal mean power distribution.

This set of scripts and functions show how the pulsed to tonal strength parameter can be calculated.
The pulsed to tonal strength parameter/ratio (PTR) can give information of the mean power present in the pulsed components of the signal to the mean power present in the tonal components. This parameter can be calculated using textural information from the time frequency representations by means of the discrete cosine transform or using an efficient approach based on marginals.

Detailed info can be found in:
R. Miralles, G. Lara, J.A. Esteban, A. Rodriguez. "The pulsed to tonal strength parameter and its importance in characterizing and classifying Beluga whale sounds". J. Acoust. Soc. Am, 131(3):2173-2179, March 2012.