Table 1

Overview of the hyperparameter search detailing the interval, step size and optimal parameters (used to obtain the reported figures in this article—for details, see the above named GitHub repository). Hyperparameters were optimised for task 4 and subsequently used on all tasks. Adam32 was used for optimisation.

ParameterMinMaxStepOptimal
Learning rate5e −5 5e −4 5e −5 1e −4
Batch size8322*16
Audio segment length (s)182*8
Spectral bands (ƒƒt n) (n)51220482*1024
Sample rate sr (kHz)24482*24
  • *Interval constructed using a logarithmic scale.