new example showing how to compute a 1/3 octave band spectrogram of a signal composed by two sinusoidal tones.

1 ) the sound pressure signal composed by two sinusoidal tones is created. The signal has silence before and after the tones in order to show the temporal reponse of the fast and slow time-weightings.

2) the <Do_OB13_ISO532_1> function is used to decompose the pressure signal into 1/3 octave bands.

3) The <Do_SLM> function is used to compute the SPL time-histories of each third octave band using different freq. and time weightings

This ex code was implemented using Matlab 2023b

new example showing how to compute use the <do_SLM> function:

1) create two signals: sinusoidal tones, with rms SPL level of 60 dB SPL and central frequencies of 100 Hz and 1 kHz. The signals are created with silence before and after the tones in order to verify the temporal response of the fast and slow time-weightings.

2) Compute SPL of the tones using the Z- and A-weighting and the Slow- and Fast time-weightings using the sound_level_meter of SQAT

- complemented example by plotting and comparing the freq response of the a0 filters in the bark scale
- improved documentation

- documetation

…ely FluctuationStrength_Osses2016, a simplified version of the a0 curve by Fastl and Zwicker

- improving documentation

- include the a0 factor used by the roughness code because this looks more similar to the a0 curve (free-field) in the book of Fastl2007 than the <il_calculate_a0> in the original <Fluctuation_strength_Osses2016> code (see: https://github.com/aosses-tue/mb/tree/master/FluctuationStrength_TUe) . This function is currently not being used by the roughness code

-improved documentation and double checking

- improving documentation

- include the a0 factor used by the roughness code because this looks more similar to the a0 curve (free-field) in the book of Fastl2007 than the <il_calculate_a0> in the original <Fluctuation_strength_Osses2016> code (see: https://github.com/aosses-tue/mb/tree/master/FluctuationStrength_TUe) . This function is currently not being used by the roughness code

- fixing small typo

- improv legend

chagnes for nomenclature consistency