Doorbell Sept 12th

I hear my husband lock the front door and hear him say something. around 3 mins to 5 min and 30 seconds but i hear them talking later in the audio as well. Please pull as much as possible if you can help. I am sure he has someone in my room and they are not talking. There are too many cars passing by and he says the video is distorted and noone has been in my house. I need answers because this is causing a lot of issues in my marriage because i dont know if I should be married. Please help