Steps to reproduce:

1. Set the synthesizer to e-speak-ng
2. Set the inflection and pitch to 50%
3. Save the configuration
4. They will revert back to 51%

Actual behavior:

The inflection and pitch sliders will be 51% after setting them to 50% and saving the configuration

Expected behavior:

They should be at 50% instead of 51%

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

2020.3

Windows version:

windows 10 build 1909

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 addons are disabled, is your problem still occuring?

yes

Did you try to run the COM registry fixing tool in NVDA menu / tools?

no