espnet2.enh.loss.criterions.time_domain.CISDRLoss

source

class espnet2.enh.loss.criterions.time_domain.CISDRLoss(filter_length=512, name=None, only_for_test=False, is_noise_loss=False, is_dereverb_loss=False)

Bases: TimeDomainLoss

CI-SDR loss

Reference: : Convolutive Transfer Function Invariant SDR Training Criteria for Multi-Channel Reverberant Speech Separation; C. Boeddeker et al., 2021; https://arxiv.org/abs/2011.15003

• Parameters:
  • ref – (Batch, samples)
  • inf – (Batch, samples)
  • filter_length (int) – a time-invariant filter that allows slight distortion via filtering
• Returns: (Batch,)
• Return type: loss

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

forward(ref: Tensor, inf: Tensor) → Tensor

Defines the computation performed at every call.

Should be overridden by all subclasses.

NOTE

Although the recipe for forward pass needs to be defined within this function, one should call the Module instance afterwards instead of this since the former takes care of running the registered hooks while the latter silently ignores them.