I have installed python3.9. I try to build a python script for speechRecognition. I installed pip install SpeechRecognition brew install audioport pip3 install pyaudio Then copy an paste from a copple of examples: I.G. import speech_recognition as sr r = sr.Recognizer() with sr.Microphone() as source: print("Say something!") audio = r.listen(source) and so on. What i get all time is an error. Most like: ||PaMacCore (AUHAL)|| Error on line 1277: err='-66748', msg=Unknown Error Traceback (most recent call last): File "/Users/horst/VisualStudioCodeWork/Python_Projects/Amelie_03/SpeechRecognition.py", line 9, in module with sr.Microphone() as source: File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/speech_recognition/__init__.py", line 87, in __enter__ self.stream = self.audio.open( File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/pyaudio.py", line 750, in open stream = Stream(self, *args, kwargs) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/pyaudio.py", line 441, in __init__ self._stream = pa.open(arguments) OSError: [Errno -9986] Internal PortAudio error I have googled so many time. Reinstall, and install. Follow all tips. Finally i have no idea more. Is there anybody can help? Thanks in advanced. P.S. On Linux all works fine. Why not on mac? Edit: I found this on stackoverflow: brew uninstall portaudio brew install portaudio --HEAD -HEAD was the solution for leav the error ((OMG)) :( but now i get'nt signal from microphon :( I'm very frustrated.