How do I cut recorder recordings?

I have a Huawei P8 Lite 2017. I would like to trim a recorder recording from my phone. Does anyone know how this works? Do I need an app for that? Does anyone have recommendations?

What do you use for a recorder?

With "DU Recorder" you can also edit the video after recording without using an extra app.

I think I was wrong, sorry. I meant the preinstalled recorder for sound recordings ☺️.

Unfortunately, it is not possible to cut the recordings with your mobile phone program. You would need an app from the Playstore. Unfortunately, I know no specific, but you can just rummage around in the Play Store