[Dumb_Ox]

Since reading aloud would make such a hall into a Bedlam, reading quietly had to be a much more common skill than Fr. John Zuhlsdorf would suggest.

Augustine's text cited here itself doesn't suggest reading aloud was common, just that Augustine, the trained orator, thought Jerome's silence particularly noteworthy.

[GSlob]

I see it as noteworthy for his intended audience. The pablik skul graduates and other poor in spirit have difficulty reading even now.