Per Harley's suggestion, I just turned my volume down, so the sound disruption has been eliminated, thanks!. The thing that surprises me, is this happened today out of the blue, as it never had been an issue for me in the past and does not happen on other sites. The ads are associated with browsing history, but that has been the case for some time. Google is not going to win friends with this type of thing, although I suppose their advertisers love it. Reminds of spam phone calls.