DATASET 1: Impedance Tube Installation and Environmental Variability Dataset

Dataset 1 is composed by two CSV files, defined as follow:

           i.               alpha1.csv (2561x648): This file contains the measured acoustic absorption coefficient data:

·        The 648 rows correspond to the values of the acoustic absorption coefficient at each frequency, obtained by varying a set of categorical variables.

         ii.               target1.csv (648x14): This file contains 648 one-hot encoded vectors, one for each acoustic absorption measurement reported in alpha1.csv. Each row describes the conditions under which the corresponding measurement was performed:

·       Columns [1,2]: material (2);

·       Columns [3,4]: protective layer (2);

·       Columns [5,6,7]: installation configuration (3);

·       Columns [8,9,10,11]: relative humidity (4);

·       Columns [12,13,14]: specimen number (3);

Note: The investigated frequency range spans from 250 Hz to 4250 Hz, with a resolution of 1.5625 Hz.