Can any NCH product convert a folder of MP3s to MP4?

I've got Switch, Prism, and VideoPad, and as far as I can see, none of them can convert a folder of MP3 files to MP4.

Does any NCH product have this capability?

I've got about 15 folders, each with about 20 MP3 files that I want to convert to MP4 so I can add subtitles for lyrics.

Thanks

Easily done, song-by-song. Or each song might be placed in its own sequence.

Drop an mp3 onto the audio track.

Add subtitles on the video track. You could place a blank clip (or any clip) on that track as well, to act as a background for the captions.

Export each sequence as mp4. The Export All Sequences option could make this go quickly.