o Si|@s6ddlZddlmZmZddlmZGdddZdS)N)SequenceUnion)CutSetc @sTeZdZdZ  ddeeeefdedejde ddf d d Z d e de fd d Z dS) PerturbSpeeda# A transform on batch of cuts (``CutSet``) that perturbs the speed of the recordings with a given probability :attr:`p`. If the effect is applied, then one of the perturbation factors from the constructor's :attr:`factors` parameter is sampled with uniform probability. NFfactorsprandgen preserve_idreturncCs,t|tr|n|g|_||_||_||_dS)N) isinstancerrrrandomr )selfrrrr r_/home/ubuntu/.local/lib/python3.10/site-packages/lhotse/dataset/cut_transforms/perturb_speed.py__init__s zPerturbSpeed.__init__cutscs,jdur t_tfdd|DS)Nc3s@|]}jjkr|jjjj dn|VqdS))factoraffix_idN)r r perturb_speedchoicerr ).0cutr rr s z(PerturbSpeed.__call__..)r Randomr from_cuts)r rrrr__call__s  zPerturbSpeed.__call__)NF) __name__ __module__ __qualname____doc__rfloatrr rboolrrrrrrrrs    r)r typingrrlhotserrrrrrs