Steps to reproduce:

Update to current alpha.

Actual behavior:

sapi5 synthesizer cannot be loaded anymore.

Expected behavior:

NVDA logs, crash dumps and other attachments:

ERROR - synthDriverHandler.setSynth (09:38:56.999) - MainThread (4020):
setSynth failed for sapi5
Traceback (most recent call last):
File "synthDriverHandler.pyc", line 483, in setSynth
File "synthDriverHandler.pyc", line 446, in getSynthInstance
File "synthDrivers\sapi5.pyc", line 140, in init
File "synthDrivers\sapi5.pyc", line 209, in _initTts
TypeError: '>=' not supported between instances of 'str' and 'int'
INFO - synthDriverHandler.setSynth (09:38:57.030) - MainThread (4020):
Falling back to previous synthDriver espeak

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

alpha-34782,82fefa5a (2025.1.0.34782)

Windows version:

w11 23h2

Name and version of other software in use when reproducing the issue:

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

If NVDA add-ons are disabled, is your problem still occurring?

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?