espnet2.asvspoof.loss.oc_softmax_loss.ASVSpoofOCSoftmaxLoss

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class espnet2.asvspoof.loss.oc_softmax_loss.ASVSpoofOCSoftmaxLoss(weight: float = 1.0, enc_dim: int = 128, m_real: float = 0.5, m_fake: float = 0.2, alpha: float = 20.0)

Bases: AbsASVSpoofLoss

Binary loss for ASV Spoofing.

Initializes internal Module state, shared by both nn.Module and ScriptModule.

forward(label: Tensor, emb: Tensor, **kwargs)

Forward.

• Parameters:
  • label (torch.Tensor) – ground truth label [Batch, 1]
  • emb (torch.Tensor) – encoder embedding output [Batch, T, enc_dim]

score(emb: Tensor)

Prediction.

• Parameters:emb (torch.Tensor) – encoder embedding output [Batch, T, enc_dim]