[spdustin]

"Flapping plosive at the bottom of a long tube."

What an exceptionally colorful description of the effects of that type of codec! Well done.

I wonder if there are applications for psychoacoustic modeling approaches for safety/compulsory announcements. Can they be encoded in a different way before broadcast on the PA to take advantage of our perception of human speech? And possible a different codec still for users of headphones?

Or perhaps a quick, sharp attention tone before urgent broadcasts, but for non safety/compulsory announcements, a lower volume setting...