In the military (back in the 70's with analog voice scramblers ("parkhill")
it required the operator to modulate their voice in a communications style,
rather than say a conversation style.
The example audio has the operator in what I call the conversation style.
He thinks he is on the telephone with a large sample rate.
Instead, if you were to speak like there was a string between two cans, you
would try to use your command voice.
One other thing I read about the new low baud military vocoders, is they
use two microphones. One is placed on the operators throat, and another in
the helmet to pick-up the surrounding environment. Thus, for example, the
operator can communicate even inside a helicopter with the doors open.
Here, still, the operator probably shouldn't talk like he's in a late-night
rag chew, but more like he was in a contest, and trying to maximize his
number of 5 by 9 reports in a 3 by 3 environment.
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