In current versions of Google Chrome, you can mute the audio of a tab, making it ideal when web browsing and video autoplay is running and when the autoplay audio when charging begins a page Web.
Instead of trying to locate the source of audio playback, a better approach is to mute the tab where any audio from the web page is muted, whether in a video, embedded movie, audio track, etc.
Mute a tab in ChromeThis will mute any sound from a Chrome tab, the trick applies to Chrome versions for Mac, Windows and Linux.
Right-click on the tab that is playing audio or video and choose "Mute tab"
By the way, if you're not sure which tab is the one that plays audio, look for the small speaker icon that indicates which tab in Chrome plays the audio.
Turn on tab audio in Chrome
You can also activate the audio of the tab by clicking on the corresponding tab and choose "Activate tab sound".