braindecode.augmentation.functional.frequency_shift

braindecode.augmentation.functional.frequency_shift(X, y, delta_freq, sfreq)

Adds a shift in the frequency domain to all channels.

Note that here, the shift is the same for all channels of a single example.

Parameters:

• X (torch.Tensor) – EEG input example or batch.

• y (torch.Tensor) – EEG labels for the example or batch.

• delta_freq (float) – The amplitude of the frequency shift (in Hz).

• sfreq (float) – Sampling frequency of the signals to be transformed.

Return type:

tuple[Tensor, Tensor]

Returns:

• torch.Tensor – Transformed inputs.

• torch.Tensor – Transformed labels.