mindspore.ops.hann_window

mindspore.ops.hann_window(window_length, periodic=True, *, dtype=None)

Hann window function.

$$w(n)=\frac{1}{2}-\frac{1}{2}\cos \left(\frac{2\pi n}{M-1}\right),0\le n\le M-1$$

Parameters

• window_length (int) – The size of window.

• periodic (bool, optional) – If True , return a periodic window. If False, return a symmetric window. Default True .

Keyword Arguments

dtype (mindspore.dtype, optional) – The data type specified. Default None .

Returns

A 1-D tensor.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import mindspore
>>> output = mindspore.ops.hann_window(5)
>>> print(output)
[0.        0.3454915 0.9045085 0.9045085 0.3454915]
>>> output = mindspore.ops.hann_window(5, periodic=False)
>>> print(output)
[0.  0.5 1.  0.5 0. ]