所以我最近尝试将我的语音助手代码部署到我的 Raspberry Pi 4 上，并且我安装了 python 和所有依赖项，但是我有一些错误没有在 Windows 上显示。如果有人能弄清楚这些意味着什么或如何解决它们，将不胜感激！
File "main.py", line 189, in <module>
voice_data = Record_Audio()
File "main.py", line 70, in Record_Audio
with sr.Microphone() as source:
File "/home/pi/.local/lib/python3.7/site-packages/speech_recognition/init.py", line 86, in init
device_info = audio.get_device_info_by_index(device_index) if device_index is not None else audio.get_default_input_device_info()
File "/home/pi/.local/lib/python3.7/site-packages/pyaudio.py", line 949, in get_default_input_device_info
device_index = pa.get_default_input_device()
OSError: No Default Input Device Available```