espnet2.layers.sinc_conv.BarkScale

source

class espnet2.layers.sinc_conv.BarkScale

Bases: object

Bark frequency scale.

Has wider bandwidths at lower frequencies, see: Critical bandwidth: BARK Zwicker and Terhardt, 1980

classmethod bank(channels: int, fs: float) → Tensor

Obtain initialization values for the Bark scale.

• Parameters:
  • channels – Number of channels.
  • fs – Sample rate.
• Returns: Filter start frequencíes. torch.Tensor: Filter stop frequencíes.
• Return type: torch.Tensor

static convert(f)

Convert Hz to Bark.

static invert(x)

Convert Bark to Hz.