Where to find pipefilt / txt2pho / preproc?

[StarPet]

I use mbrola for a number of years now for my home automation. Thanks for mbrola. It is great. I installed it via openSUSE. In openSUSE Leap 15.2 it did not work but I was able to copy binaries from an older system. Now I've re-installed all using Leap 15.3 and draw the mbrola package from packman repository. However, text2pho and preproc (which are in the mbrola RPM) fail with signal 11 (segmentation violation). I also tried earlier to get packman to fix/update the package but there is no progress. Now I wanted to use it right from the source (here) and noticed that pipefilt, txt2pho and preproc are not part of this project. I searched the web but could not find the source.
Can someone give me a hint on where to find them, please?

[StarPet]

Ok... I've found it here: https://github.com/GHPS/txt2pho