I’m thinking of an headache remedy from 45 years ago in which a man is given a bachelor party and a girl on his lap says “Didn’t Snookums like the party?” One of these was very annoying and then they moderated HER voice.
Another was for a false teeth glue in which the woman speaks with clinched teeth and sounds too much like Ruth Buzzi. A few weeks later they changed her voice to a less annoying one.
Then there was a public service announcement with Brenda Vacarro in which she would speak, then take a rasping breath, speak some more and inhale in a very rasping voice.
A few weeks later the rasping was gone.
As for radio, they have always been annoying, and loud. Car salesmen were the worst. The louder the advert, the lower the IQ of the people you are trying to reach.
Brenda Vaccaro was Rossane Barr before Rossane was. Raspy voice, slouchy manner. She was also simliar to Suzanne Pleshette, except, of course, Suzanne was a knock out back then, and her earthiness was the perfect foil for Bob Newhart’s nerdiness.