2025-04-10
New release 2025.4.10.0
The new version can be installed from Wren itself, or it can be downloaded from the Wren site ; I’ve added a zip there or you can use the installer.
The change is with eSpeak which now fully uses eSpeak NG. The previous Wren used some info from the 32 bit eSpeak. This also means that there are a lot more voices available but a simple install of eSpeak NG will not bring them all.
I’ll add some info on setting up eSpeak at a later stage, but it boils down to first installing eSpeak NG and then downloading the eSpeak NG sources from github to extract the espeak-ng-data folder from it and copy the voices info from there over your local eSpeak version [in Program fles/eSpeak NG/espeak-ng-data] this does not seem to break anything … anyway .. more will follow.
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Tuesday, February 10, 2026 - 19:30:44
on Windows 7 x64 and Wren 2025.4.10.0 (went back to a clean W7 to avoid W10’s bloat)
On loading the patch https://bluehell.nl/wren/patches/2025-03-08-01-01%20nanosphere.wren there is a log error
“FFTW DLL not found in path, some modules will not work”
and a popup warning error
“Could not initialize the wave player module, the required r8brain DLL “r8bsrc.dll may not be present or cannot be found”
These are puzzling messages since both the DLL’s are there in Wren’s directory from the install. The wave player seems to be working at least partly.
Tuesday, February 10, 2026 - 22:18:27
The FFTW issue ..
It may be a path issue .. it used to be the case that DLL’s would be found in the EXE directory .. but this does not always seem to be the case nowadays.
If this is the issue it can be fixed by manually adding Wren’s exe folder to the path. There is an individual path and one for all users - which one to use should not matter.
For setting the path this page may be helpful.
I’ve seen this issue in windows 11 too btw, so .. maybe it occurs in all windows versions.