Comment by adinisom

Addressing comments on hearing aid technology:

Often people who lose their hearing want to be able to hear in social situations such as restaurants and family gatherings. In this context, the signal and noise have similar properties and are coming from the same direction. Directionality helps but can only do so much. Noise reduction can make hearing aids more comfortable to wear but don't necessarily improve comprehension in challenging situations. Progress here is fantastic -- at the same time it helps to have realistic expectations.

Putting the mic on the person speaking sidesteps the problem -- it's like the rest of the room isn't there.