ERROR:root:Error initializing pyaudio audio recording: [Errno -9998] Invalid number of channels

[alec1852198]

Hi I am trying to run a code where RealtimeSTT is imported.

I am running on Visual Studio Code on a MacBook Pro M3. the error I get is as follows:

ERROR:root:Error initializing pyaudio audio recording: [Errno -9998] Invalid number of channels
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/RealtimeSTT/audio_recorder.py", line 700, in _audio_data_worker
    stream = audio_interface.open(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pyaudio/__init__.py", line 639, in open
    stream = PyAudio.Stream(self, *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pyaudio/__init__.py", line 441, in __init__
    self._stream = pa.open(**arguments)
OSError: [Errno -9998] Invalid number of channels
Process Process-2:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/RealtimeSTT/audio_recorder.py", line 700, in _audio_data_worker
    stream = audio_interface.open(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pyaudio/__init__.py", line 639, in open
    stream = PyAudio.Stream(self, *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pyaudio/__init__.py", line 441, in __init__
    self._stream = pa.open(**arguments)
OSError: [Errno -9998] Invalid number of channels

I can't figure out how to solve the problem. Thanks!

[KoljaB]

Please test your audio device compatibility with PyAudio.

Run this script to list and test available audio devices:

import pyaudio

p = pyaudio.PyAudio()

info = p.get_host_api_info_by_index(0)
numdevices = info.get('deviceCount')

for i in range(0, numdevices):
    if (p.get_device_info_by_host_api_device_index(0, i).get('maxInputChannels')) > 0:
        print("Input Device id ", i, " - ", p.get_device_info_by_host_api_device_index(0, i).get('name'))

p.terminate()

This will output a list of audio input devices available on your system.

Each device is identified by a unique "Input Device id".
Select one of these devices and submit the device id as input_device_index parameter to RealtimeSTT's AudioToTextRecorder.