What Is the Softest Threshold of Hearing Loss?

The most common pattern of age related losses worse in the high frequencies and that high frequency Roll off starts very high. And so somebody with a high frequency hearing loss It would you could sort of simulate it on your radio if you turn up the bass and turn off the treble  and you can't make out what the guy is saying. The benefit from hearing aids may still outweigh the aggravation about it.