Bob, I would never argue with you about sensitivity to audible noise, this seems to be a personal reaction and is quite subjective. However,you may not like it, but the terms "dynamic range" and "signal to noise ratio" have meanings, though you are free to make up your own definitions and language to suit what pleases you. For the record, dynamic range is defined as "The difference, in decibels (db), between the softest and loudest possible sounds that a component can produce.". Once again, the issue of non-recognition in a digital system below the least signficant bit is side-stepped.
Marty