如何用python-sounddevice录制音频输出？

import sounddevice as sd
import numpy as np

def callback(indata, frames, time, status):
    # 将录制的音频数据保存到全局变量中
    global audio_data
    audio_data = indata.copy()

# 设置录制参数
duration = 5  # 录制时长（秒）
sample_rate = 44100  # 采样率
channels = 2  # 声道数

# 开始录制音频
audio_data = np.zeros((int(duration * sample_rate), channels))
with sd.InputStream(callback=callback, channels=channels, samplerate=sample_rate):
    sd.sleep(int(duration * 1000))

# 保存录制的音频数据到文件
filename = 'output.wav'
sd.write(filename, audio_data, sample_rate)

print("音频已成功录制并保存到文件：", filename)