Psychoacoustics

LoudnessISO532_1_Stationary([signal])	Computes ISO 532-1 loudness for stationary sounds.
LoudnessISO532_1_TimeVarying([signal])	Computes ISO 532-1 loudness for time-varying sounds.
SpectralCentroid([signal])	Computes the spectral centroid of a signal.
Sharpness([signal])	Computes the sharpness of a signal according to Zwicker & Fastl's model.
Roughness([signal])	Computes the roughness for stationary sounds.
FluctuationStrength([signal])	Computes the fluctuation strength for a stationary sound.
ProminenceRatio([psd, frequency_list])	Computes the ECMA 418-1/ISO 7779 prominence ratio (PR).
ToneToNoiseRatio([psd, frequency_list])	Computes the ECMA 418-1/ISO 7779 tone-to-noise ratio (TNR).
TonalityDIN45681([signal, window_length, ...])	Computes DIN 45681 tonality.