I have heard about the digital hearing aids which can eliminate background noise. Do they work?
Digital hearing aids are now the norm as the older analogue aids are being phased out. The range is now quite large with each manufacturer producing hundreds of different models with varying degrees of complexity. None can restore lost hearing but some are better than others at dealing with the perennial problem of noise. A rule of thumb to consider is the more advanced the aid, the more it can analyse and classify sound. Hearing aids that can recognize the difference between speech and noise should deliver the best quality sound possible.