cleanup: drop the vendored psychopy-sounddevice fallback, use PTB everywhere

eegnb/experiments/__init__.py

@@ -23,35 +23,10 @@
         VisualSSVEP = MissingExperiment
 
 try:
-    from psychopy import sound, plugins, prefs
-    import platform
-    import logging
-
-    # PTB does not yet support macOS Apple Silicon freely, need to fall back to sounddevice.
-    if platform.system() == 'Darwin' and platform.machine() == 'arm64':
-        # import psychopy_sounddevice.backend_sounddevice
-        plugins.scanPlugins()
-        success = plugins.loadPlugin('psychopy-sounddevice')
-        print(f"psychopy_sounddevice plugin loaded: {success}")
+    from psychopy import prefs
 
-        # Force reload sound module
-        import importlib
-        importlib.reload(sound)
-
-        # Try to set the audio device if requested and available
-        audio_device = prefs.hardware.get('audioDevice', 'default')
-        if audio_device and audio_device != 'default':
-            if hasattr(sound, 'setDevice'):
-                try:
-                    sound.setDevice(audio_device)
-                except Exception as e:
-                    logging.warning(f"Failed to set audio device to '{audio_device}': {e}")
-            else:
-                logging.warning(f"sound.setDevice not available, could not set device to '{audio_device}'")
-    else:
-        #change the pref library to PTB and set the latency mode to high precision
-        prefs.hardware['audioLib'] = 'PTB'
-        prefs.hardware['audioLatencyMode'] = 3
+    prefs.hardware['audioLib'] = 'PTB'
+    prefs.hardware['audioLatencyMode'] = 3
 except ImportError:
     import logging
     # logging.warning("PsychoPy not found. Stimulus presentation experiments will not be available.")

environments/eeg-expy-full.yml

@@ -12,7 +12,6 @@ dependencies:
     - liblsl # install liblsl to prevent error on macOS and Ubuntu: "RuntimeError: LSL binary library file was not found."
     - wxpython>=4.0 # install wxpython to prevent error on macOS arm64: "site-packages/wx/_core.cpython-38-darwin.so, 0x0002): symbol not found in flat namespace '__ZN10wxBoxSizer20InformFirstDirectionEiii'"
     - html2text # avoid building wheel
-    - cffi # Fix sound ffi.callback() issue with sounddevice on macOS: https://github.com/spatialaudio/python-sounddevice/issues/397
     - pip
     - pip:
       # Install package with only Analysis requirements

environments/eeg-expy-stimpres.yml

@@ -7,7 +7,6 @@ dependencies:
     - setuptools
     - dukpy==0.2.3 # psychopy dependency, avoid failing due to building wheel on win 3.9.
     - wxpython>=4.0 # install wxpython to prevent error on macOS arm64: "site-packages/wx/_core.cpython-38-darwin.so, 0x0002): symbol not found in flat namespace '__ZN10wxBoxSizer20InformFirstDirectionEiii'"
-    - cffi # Fix sound ffi.callback() issue with sounddevice on macOS: https://github.com/spatialaudio/python-sounddevice/issues/397
     - pip
     - pip:
       # Install package with Analysis + Streaming requirements