Amazon.com: Golvery Ground Loop Noise Isolator, Auido Humming Hissing Buzzing Noise Filter Eliminator for Car Audio, Home, PC Stereo System with 3.5mm or RCA Aux Jack : Electronics
New Inspiron 16 laptop from Dell website. The speakers make buzzing noise when people are talking at certain lower Hz and higher Hz. At 0:33 seconds, you can here consecutive bussing noise
How to Fix Buzzing Sound From Computer or Laptop Speakers - Guiding Tech