audio_tools.py 文件源码

def rolling_window(X, window_size):
    # for 1d data
    shape = X.shape[:-1] + (X.shape[-1] - window_size + 1, window_size)
    strides = X.strides + (X.strides[-1],)
    return np.lib.stride_tricks.as_strided(X, shape=shape, strides=strides)