I think you are on to something here about communication in general. I hear the problem is your parents are frustrated they are not being heard.
      When you do hear them what is common? Are they touching you? Is the environment quiet? Do they ask you to repeat it? Do you jot a note down about the infomation they wanted to convey? Do you repeat it in your head? Do you visualize what they are saying? Is it a certain time of day you hear them best? Do you hear them talking, but are unable to tune in? Is the information they are giving you in short sentences or a long string of sentences? Is the information related to something you are interested in for example: saying "First I want you to fold the laundry, second empty the dishwasher, and third let the dog out." There is a number sequence there that may be useful for a person who likes counting.  
    I would find your common thread from the times you HAVE heard your parents, and suggest to your parents "you understand they are frustrated and you want to be part of the solution," then tell them what the common thread is.
     I do feel sympathy that you as the child have to be the one to step up to the plate, but you will find in time we adults are human too and we make many mistakes. You can give yourself and your parents a great gift if you can help figure out how to improve the communication gap that exists now. You are learning how to compensate for your differences as we all can Nt's, Aspies, young and old to improve our quality of life. It is a skill that can benefit you throughtout your life. Best of luck.
Advocate for children