How to play ogg file using NSpeex?

I am working on a C # project with special needs to reproduce an ogg file with NSpeex .

How do I get NSpeex to read the ogg file from the file path? and how to make it play and search?

I think NAudio is necessary, but I still can't figure out how ...

Forgive me I am new to sound development, hopefully someone can show me some code examples here.