FMOD audio can be produced from plenty of audio sources (such as .ogg), but only through the original FMOD Programmer's API. We do not know about any other solution that would offer users a way to otherwise convert Ogg Vorbis audio to FSB format.
Convert Ogg Vorbis audio file to FMOD audio.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert ogg to fsb on Windows
An audio engine for software developers
Convert from ogg file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.