DECtalk for NVDA

Modern DECTalk that works with 64-Bit NVDA while attempting to preserve compatibility with older NVDA versions.

The driver is architecture-aware: 32-bit NVDA loads the DECtalk driver directly, while 64-bit NVDA 2026.1+ uses NVDA's 32-bit synth host.

Packaging

Make sure all of the runtime files listed in runtime-files.txt are present, build the add-on:

build.bat

This creates one package that supports both older 32-bit NVDA releases and 64-bit NVDA 2026.1+.

Final notes

Thanks go to the maintainers of DECTalk on GitHub, the main DECTalk repo is where DECTalk's source can be found, so feel free to check it out.