Recent advancements in hearing aid technology mean that modern hearing aids have a high level of sound quality in a very small device. It should be noted that a hearing aid will not restore normal hearing...Hearing aids are not a perfect solution – they do have their limitations.They will not restore normal hearing, nor will they eliminate background noise. However, they may be adjusted to lessen background noise. New users to hearing aids often complain that their voices sound funny to themselves, and that they are bothered by the relative loud noise from things like refrigerator fans and traffic on the street outside.