A pho file extension is related to the MBROLA and used for its phonetic data.
There is one other file type using
the PHO file extension!
.pho - Gerber photoplot data
PHO file extension - MBROLA phonetic data
What is pho file? How to open pho files?
File type specification:
The pho file extension is associated with the MBROLA, a program for Microsoft Windows operating system, which is used to generate speech audio.
The pho file stores phonetic data from MBROLA.
This pho file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.