I hate to jump into subject where I know next to nothing but I think I will for a moment just in case this works.
Hey, no promises.
I've only used the Kate voice with Hal. And Kate voice doesn't do emphasis (as far as I know).
But I've used other voices on a temp basis for special projects. And some of them do emphasis.
So depending on the voice you use, just maybe your Hal gal can do it.
Put the following in a hap file and drop on your hal gal with the voice you use.
Take off the # on the line you want her to read and see if she reads normal or as the script tells her to.
If the voice you use follows script directions, then go in Hals brain and make your changes.
# <prosody rate="slow"> this is speaking slowly </prosody>.
# <prosody rate="fast"> this is speaking fast </prosody>.
# <prosody rate="-80%"> this is 80% slower </prosody>.
# Break for 1000 milliseconds <Break time="1000ms"/> Okay, keep going."
# Break for 6 seconds <Break time="6s"/> Okay, keep going."
# That is a normal bank account!
# That is a <emphasis level="strong"> strong </emphasis> bank account!
# That is a <emphasis level="reduced"> huge </emphasis> bank account!