Well, I was wanting to not have to use my hearing aid at all; but, since you ask, I don't know if it is analog or digital. It's very small, and programmable (though you need special kit [and expertise]), so I guess it's digital. It has Phonak Art written on it.

A few days ago I tried the Nokia LPS-5 (basically sort of an audio bluetooth->loop bridge), and, in general, found it next to useless. It has a mic on it, but it only works when you have a phone call (presumably to give some 'presence' in case of danger or something). Furthermore, when attempting to listen to music, I had to hold the loop (which goes around my neck) really close to the hearing aid in order to get anything at all, and when I did, the quality was aweful.

My problem is more about frequency response than volume (large high frequency deficiency), plus I'm not able to understand people in front of me if people are talking (or otherwise making noise) behind/around me. If my hearing was really poor, perhaps the hearing aid would be of move benefit, but as it is, it is only of benefit in some circumstances (mostly one-to-one conversations), and meetings isn't one of them.

Looking at this T-Link, I suppose it's worth a try, but I would have thought that my doctor (an audio specialist) would have suggested it if it would be of any benefit.

In any case, I think that an audio application would be simple enough to do, for someone who has this sort of experience already