I’m not an expert but I think the hearing loss causes the distortion of words. Hearing aids are trial and error. You should get a trial period with your aids to see if they work for you. I know once I had tried phonax because the audiologist recommended them for my type of loss but I couldn’t hear very well. I returned them and went back to oticons which I had prior to the phonax and they worked better for me. So definitely make sure you get a trial period when you go for them. That way you are not paying for aids that don’t work for you.