soundfunc.py 文件源码

def conv_to_dct(signal, blocksize, edge, out_blocksize):
    blocks1 = []
    blocks2 = []
    for i in range(0, signal.shape[0]-blocksize-edge, blocksize-edge):
        dct_block = dct(signal[i:i+blocksize], norm='ortho')
        blocks1.append(dct_block)
    if blocksize > out_blocksize:
        for opw in range(len(blocks1)): blocks2.append(blocks1[opw][0:out_blocksize])
    return blocks2