BUG: Sound device dont see record devices

[kleyton67]

OS: Ubuntu 25.04 \n \l

Pipewire:
pipewire
Compiled with libpipewire 1.2.7
Linked with libpipewire 1.2.7

Wireplumber
wireplumber
Compiled with libwireplumber 0.5.8
Linked with libwireplumber 0.5.8

python_env:
conda
Python 3.10.18 (main, Jun 5 2025, 13:14:17) [GCC 11.2.0] on linux

recorder devices:

test_sounddevice.py:

import sounddevice as sd
import numpy as np

# Parameters
duration = 5  # seconds
sample_rate = 48000.0
channels = 2 # Stereo

print(sd.query_devices(kind='input'))

# arecord -l
sd.default.device=4
sd.default.samplerate = sample_rate 



input("something")
# Record audio
print("Recording...")
recording = sd.rec(int(duration * sample_rate), samplerate=sample_rate, blocking=True, channels=channels)
print("Recording finished.")

# Play back the recording
print("Playing back...")
sd.play(recording, sample_rate)
sd.wait()  # Wait until sound has finished playing
print("Playback finished.")

=============================================
First errors

1. pip install sounddevice
2. python test_sounddevice.py
   Error:

Traceback (most recent call last):
  File "yamnet_test/test_sounddevice.py", line 14, in <module>
    import sounddevice as sd
  File "sounddevice.py", line 72, in <module>
    _lib = _ffi.dlopen(_libname)
OSError: cannot load library 'libportaudio.so.2': miniconda3/envs/py_sounddevice/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by /lib/x86_64-linux-gnu/libjack.so.0)

=============================================
Second error
1.conda install -c conda-forge sounddevice portaudio
2. python show
{'name': 'HDA Intel PCH: ALC295 Analog (hw:1,0)', 'index': 4, 'hostapi': 0, 'max_input_channels': 2, 'max_output_channels': 2, 'default_low_input_latency': 0.008, 'default_low_output_latency': 0.008, 'default_high_input_latency': 0.032, 'default_high_output_latency': 0.032, 'default_samplerate': 48000.0}

and play my song.
3. When i open gnome config page and run the script again, i got

python test_sounddevice.py 
Traceback (most recent call last):
  File "test_sounddevice.py", line 22, in <module>
    print(sd.query_devices(kind='input'))
  File "sounddevice.py", line 572, in query_devices
    raise PortAudioError(f'Error querying device {device}')
sounddevice.PortAudioError: Error querying device -1

4. After 5 secs to close gnome audio config and start app again :
   {'name': 'HDA Intel PCH: ALC295 Analog (hw:1,0)', 'index': 4, 'hostapi': 0, 'max_input_channels': 2, 'max_output_channels': 2, 'default_low_input_latency': 0.008, 'default_low_output_latency': 0.008, 'default_high_input_latency': 0.032, 'default_high_output_latency': 0.032, 'default_samplerate': 48000.0}

5. When i open an chromium page while 5 secs of recorder in the python script, i got:

{'name': 'HDA Intel PCH: ALC295 Analog (hw:1,0)', 'index': 4, 'hostapi': 0, 'max_input_channels': 2, 'max_output_channels': 2, 'default_low_input_latency': 0.008, 'default_low_output_latency': 0.008, 'default_high_input_latency': 0.032, 'default_high_output_latency': 0.032, 'default_samplerate': 48000.0}
something^[[A
Recording...
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1735
Expression 'AlsaOpen( &alsaApi->baseHostApiRep, params, streamDir, &self->pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1902
Expression 'PaAlsaStreamComponent_Initialize( &self->capture, alsaApi, inParams, StreamDirection_In, NULL != callback )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2166
Expression 'PaAlsaStream_Initialize( stream, alsaHostApi, inputParameters, outputParameters, sampleRate, framesPerBuffer, callback, streamFlags, userData )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2834
Traceback (most recent call last):
  File "test_sounddevice.py", line 33, in <module>
    recording = sd.rec(int(duration * sample_rate), samplerate=sample_rate, blocking=True, channels=channels)
  File "/py_sounddevice/lib/python3.10/site-packages/sounddevice.py", line 279, in rec
    ctx.start_stream(InputStream, samplerate, ctx.input_channels,
  File "/py_sounddevice/lib/python3.10/site-packages/sounddevice.py", line 2634, in start_stream
    self.stream = StreamClass(samplerate=samplerate,
  File "/py_sounddevice/lib/python3.10/site-packages/sounddevice.py", line 1440, in __init__
    _StreamBase.__init__(self, kind='input', wrap_callback='array',
  File "/py_sounddevice/lib/python3.10/site-packages/sounddevice.py", line 909, in __init__
    _check(_lib.Pa_OpenStream(self._ptr, iparameters, oparameters,
  File "/py_sounddevice/lib/python3.10/site-packages/sounddevice.py", line 2804, in _check
    raise PortAudioError(errormsg, err)
sounddevice.PortAudioError: Error opening InputStream: Device unavailable [PaErrorCode -9985]

Questions:
There are some pipewire configuration to avoid this behavior?
There are any way to make clone in pipewire to be used on python?
Is it a problem with my conda env or libs required by sounddevice?

[mgeier]

I took the liberty of fixing the code formatting in your Markdown.

Can you please try the same thing without involving conda/miniconda/...?