Split a long audio into multiple files

[Meerkat_89]

Hello,

I have long audio books (9h) that I would like to split in 30 min files.
I know how to do it “manually” (select a period>export selction in mp3).

Is there a way to automate it, or at least process it faster ?
Like programming a split every 30 min.

Thanks in advance

[LWinterberg]

Tools → Regular interval labels in conjunction with File → Export audio → export multiple → split by label sounds like what you want to do.