The editing of the interview.

When I editing my interview, I found there are several problems in my interview. 

1. There are some noise in my interview, such as the grating  of  table, cough, and the sound like 'hum'.

2. The background music of the interview. As I had thought, I would use some piano music as the background music, but through finding some example of interview, I think use some lively music is better.

3.The recording of my interview last about 8min, I need to cut it for 3min. The connectivity of the content is very important.