The intermittent buzz in the sound is on a Gateway laptop model NV570P-18U, OS Win 10 Home 64 bit. This problem only shows up when watching Youtube videos. There is no buzz on any other web page. I got ride of the Youtube buzz by updatting the Gateway's sound drivers. It lasted about 2 weeks. This time I tried internet Explorer, Firefox (my primary browser) and Goggle Chrome. The intermittent buzz in Youtube is there in all 3 browsers. BUT the buzz is only in Youtube. I can go to places like Hulu (I have 1 month of free service with Hulu) anyways there is NO buzz on Hulu. The video and sound on Hulu is 100% aok. BTW if the Youtube buzz gets bad enough it will effect the video. I am out of ideas to try.

Steve