使用scipy.wavfile write numpy.ndarray修改.wav音频文件没有属性append[duplicate]

里夫 数据 部分 文件内容。正在运行的示例遇到以下错误:

AttributeError: 'numpy.ndarray' object has no attribute 'append'

1. 源于对以下内容的追溯: new_data = data.append(np.zeros(2 * sr))

但是,在更改以下文件以尝试修复此问题时,例如 new_data.astype(np.int16) ,仍然遇到问题。

# ''' From Imports ''' #
from scipy.io.wavfile import write
# ''' Imports ''' #
import numpy as np

# ''' Filename IN '''
fn = 'example.wav'
# ''' Byte Length ''' #
bl = np.fromfile(fn, dtype=np.int32, count=1, offset=40)[0]
# ''' Offset ''' #
data = np.fromfile(fn, dtype=np.int16, count=bl // np.dtype(np.int16).itemsize, offset=44)
# ''' Sample Rate ''' #
sr = np.fromfile(fn, dtype=np.int32, count=1, offset=24)[0]
# ''' New .WAV ''' #
with open('out.wav', 'a') as fout:
    # ''' Appending Two Seconds of 0.0's
    # >> AttributeError: 'numpy.ndarray' object has no attribute 'append'
    # ''' #
    new_data = data.append(np.zeros(2 * sr))
    write(fout, sr, new_data)

# ''' Close File ''' #
fout.close()
# ''' End ''' #

通过使用: write(fout, sr, np.zeros(2 * sr).astype(np.int16)) .

有什么方法可以解决这个问题吗?参考问题: https://stackoverflow.com/a/67455735/8813179