Every time the "Turn up the things you love" advert comes on TV, my wife nudges me that I should go and find out about these hearing aids.
The way that they are portrayed in the ad seems almost miraculous; the background noise and chatter is muted and the wearer can hear what they want to, whether that's birds singing softly or their friends / partner talking quietly to them in a crowded pub.
The engineer in me tells me that, whilst some psycho-acoustics based audio processing could help, you'd really need a pretty huge reflector-based microphone aimed at your chosen sound source to duplicate the effects advertised.
Does anyone have any experience with these hearing aids? Can they help with our audio processing issues? I thought (and this seems confirmed by the fact that these ads are targeted at the general population) that these hearing aids were designed to combat age-related hearing loss (which, last time I checked, I don't have except for the normal loss of frequencies above about 13kHz).