Hey there! Have had a listen to your samples, they are not an easy fix, definitely not something you can just slap an auto preset onto (which is what a lot of people do here..)! Apart from manual noise reduction, there are about 5 additional processes you need to do in order to get a more optimal and I'd say usable audio. Anyway, send me a message so I then I can send you your two sample files, and also explain my techniques in more detail. Thought you'd also might like to know I did a more difficult audio noise removal job (other people talking, plates banging in the background, etc.) and was rewarded with 5 stars: https://www.freelancer.com/projects/video-services/who-can-remove-the-background/ . Thanks, looking forward to hearing back from you! Cheers, Justin