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# PyTorch torch.hann_window Function * * Pytorch torch Reference Manual](#) `torch.hann_window` is a function in PyTorch used to generate a Hann window. The Hann window (also known as the Hanning window) is a type of cosine-squared window function, commonly used for signal windowing before Fourier transforms to reduce spectral leakage. ### Function Definition torch.hann_window(window_length, periodic=True, dtype=None, layout=torch.strided, device=None, requires_grad=False) * * * ## Usage Example ## Example import torch # Create a Hann window of length 512 window = torch.hann_window(512) print("Hann Window shape:", window.shape) print("First 5 values of the window:", window[:5]) # Used for STFT x = torch.randn(1,16000) stft_result = torch.stft(x.squeeze(), n_fft=512, hop_length=160, win_length=512, window=window) print("STFTResult Shape:", stft_result.shape) * * Pytorch torch Reference Manual](#)