@SpudGunner Hi Jim FYI most airlines/aviation agencies have a safety mandate that directs airlines to provide an aisle seat for deaf or hearing impaired passengers. This is to allow the crew to ensure your attention has been gained and they can communicate instructions more easily by being right next to you (especially in an emergency) Its always a good idea to let the crew know (plus you can bag an aisle seat every time :).
@BrBarry ref feedback I have bose 35 noise cancelling over ear and still get a bit of feedback, I find if I turn the volume on HA (Jabra Enhance Pro) down low it fixes it (most of the time) or take them out and the Bose do a good job of playing the movies back or I blue tooth them to my phone for music.
hope that helps