Hello,
I’m encountering an issue where audio playback works correctly in Builder mode but fails in Code mode. Specifically, I receive the following error message in Code mode: Audio test failed: cannot unpack non-iterable NoneType object
I set audioLib = ['sounddevice']
or audioLib = ['PTB']
in the userPrefs.cfg
file.
In Code mode, I use the following test script:
from psychopy import prefs, sound, core
prefs.hardware[‘audioLib’] = [‘sounddevice’] # Also tested with ‘PTB’ and ‘pyo’
prefs.hardware[‘audioDevice’] = ‘Speakers (Realtek(R) Audio)’
print(f"Audio library: {prefs.hardware[‘audioLib’]}“)
print(f"Audio device: {prefs.hardware[‘audioDevice’]}”)
try:
tone = sound.Sound(440, secs=1.0)
tone.play()
core.wait(1.0)
print(“Audio test successful!”)
except Exception as e:
print(f"Audio test failed: {e}")
It would be great if someone could answer the following questions:
- Why does the
sounddevice
backend fail to initialize properly in Code mode? - Are there any additional steps I need to take to ensure the audio device is correctly configured for Code mode?
Thanks.