Putting Filenames as Titles in MP3s on all files in a folder

Thanks in advance.
I have a folder with some very old songs. Some of them don't have titles in their tags.
I would like to take the file names and use them as Titles.
I wan't to do that as a batch for all mp3s in a folder.

Any help/tip is welcome

Convert menue
Filename - Tag
Format string: %title%

FAQs: /t/8016/1
(or poster's suggestion)