I misunderstood message bank recording.

While snuggling with my 2 dogs on the couch my mobile phone ( under me on said couch) has accidentally called a friend of my partner who when she has played it back thanks that it is a recording of me performing a sexual act on another man so she has then taken it to my partner and played it to him in the matter how much I protest he does not believe that it is not me doing this because he says he can hear a male person‘s voice on the recording. This could only be a voice that was on the TV or from the DVD I was watching but my partner says that it’s not he thinks there was a male person present.
Since I know this isn’t the case I need to know how to make the recording clearer so I can prove my innocence. Please help me

We are not able to assist with forensic analysis. For legal cases, assistance should be sought from a qualified “Audio Forensic” expert.