External Microphone for Hearing Aid
I have a severe to profound hearing loss which can be largely dealt with by a good hearing aid. The one aspect not correctable is understanding speech in a crowded, or otherwise noisy, background. All the hearing aid companies claim to have built-in directional microphones for this situation but none of them work. I have tested them experimentally by using a recorded sound source outside to reduce reflected sound. I have also tried 2 devices which depend on the telecoil but again no success. Some hearing aids have a separate audio input and some a lapel microphone and I would like to try using a high quality unidirectional microphone to point to the person speaking. Is this possible? I am reluctant to try without some reassurance that it will not damage the very expensive hearing aids. The hearing aid companies do not have the courtesy to reply to my question which I assume is an admission that their "Directional Microphones" do not work.
I am desperate for a solution because it is making me unsociable.
Hope someone can help.