Read Aloud error

[nuget102]

I was attempting to setup the 'Read Aloud' feature on Calibre on my Steamdeck when I encountered an error. It keeps giving me a KeyError:'dummy' when I attempt to access the settings, so I am unable to change any of the Text To Speech settings.

I can't seem to find where my settings are saved, or I would simply delete the settings and start over, but I'm unable to locate them on Linux.

calibre, version 7.20.0
ERROR: Unhandled exception: <b>KeyError</b>:'dummy'

calibre 7.20  embedded-python: True
Linux-6.5.0-valve22-1-neptune-65-g9a338ed8a75e-x86_64-with-glibc2.39 Linux ('64bit', 'ELF')
('Linux', '6.5.0-valve22-1-neptune-65-g9a338ed8a75e', '#1 SMP PREEMPT_DYNAMIC Mon, 21 Oct 2024 19:06:57 +0000')
Python 3.11.5
Interface language: None
EXE path: /opt/calibre/bin/calibre-parallel
Traceback (most recent call last):
  File "calibre/gui2/viewer/tts.py", line 40, in action
  File "calibre/gui2/viewer/tts.py", line 65, in configure
  File "calibre/gui2/tts/manager.py", line 222, in configure
  File "calibre/gui2/tts/config.py", line 448, in __init__
  File "calibre/gui2/widgets2.py", line 267, in __init__
  File "calibre/gui2/tts/config.py", line 464, in setup_ui
  File "calibre/gui2/tts/config.py", line 467, in set_engine
  File "calibre/gui2/tts/config.py", line 385, in set_engine
  File "calibre/gui2/tts/config.py", line 397, in rebuild_voices
KeyError: 'dummy'

[nuget102]

Of course right after this I find the config folder (home/.config/calibre) anytime I select 'The Speech Dispatcher Engine' as the Text To Speech Engine it begins spitting that error though.

[kovidgoyal]

It's caused by having speech dispatcher on your system with only a dummy output module. Uninstall speech dispatcher and you should be fine. Next calibre release will handle this case more gracefully.