Sorry, but I don't remember. I'm not that sensitive to tire noise unless it reaches extreme levels, and I certainly don't remember that.
In any case, they are a new tire line and might differ in noise level from earlier Hankook tires. There aren't any tests of them yet on Tire Rack, my "go to" place for tire information. However, of the three user reviews that have been posted there, two specifically commented on how quiet they were. There were also references to their getting strong reviews on the Tesla forums.