Method __init__

PCEN constructor. Args: alpha: float, exponent of EMA smoother smooth_coef: float, smoothing coefficient of EMA delta: float, bias added before compression root: float, one over exponent applied for compression (r in the paper) floor: float,

(self,
                 alpha: float = 0.96,
                 smooth_coef: float = 0.04,
                 delta: float = 2.0,
                 root: float = 2.0,
                 floor: float = 1e-6,
                 trainable: bool = False,
                 learn_smooth_coef: bool = False,
                 per_channel_smooth_coef: bool = False,
                 name='PCEN')