How to use audio in court?

I do not have any understanding or knowledge of the legal system so please be gentle :-)

I’m looking for some help with providing the court's authentic raw voice recordings of an individual I live with swearing at me, discriminating against me (verbal abuse towards me)

I have a question regarding how to convert an audio voice file into a written document/( not tech-savvy). Could anyone kindly assist me? I'm not sure if I'm allowed to use a website for this conversion, or if I need to transcribe everything by hand.

I have about 3 audio files to convert.

Thanks in advance.