Can you keep the rights to your audio interviews? There is no reason you would have to give up the publication rights to your audio. I mean why would you? There may be a case where if you got an interview with someone that they said you can’t have the rights to do anything with the interview, but why would they be giving you the interview if they didn’t want promotion. It would be understood that once you have the interview you are going to use that as a tool to get them publicity.
So you are going to have to be in control of the distribution of your interview to get them more business or more notoriety or better distribution. So that part of it if you needed the rights to that interview and you wanted to use it to promote them or use it to sell a product you have to maybe get that as an understanding up front. But I don’t think there is really any reason someone should withhold the publication rights. I guess it all depends. I’ve never had a problem with it in the past.
So for any guy who says they are not going to give you the publication rights there are probably 20 other experts in that field who would be willing to, just move on to someone else. There are plenty of people to interview, plenty of experts. That’s my answer on that; if they aren’t willing to give you the rights then you should find someone else who is.