Google Chrome no sound on YouTube videos - How to fix immediately

Open any YouTube video.  Check sound if didn't appears to then follow any one method.

I) Method: (without remove chrome extensions)

1) R-Click on Sound icon(bottom of the right corner in your system), then options appears > in that select Open Volume Mixer option > Now Disable sound icon appears and YouTube title with the google chrome icon.

> NOW CLICK TO ENABLE THE SOUND ICON THEN YOUTUBE SOUND WILL APPEAR.

2) Chrome://pluggins command not working at the browser address bar if you remove the all chrome extension plugins.
                  (Or)
If you have chrome plugins then follow the step to disable the problematic plugin:

Type chrome://pluggins at address bar > press enter.

All chrome plugins displayed with name, description, location, type, MIME types

Observe here Type: PPAPI (out of process). It is a new plugin process.

Scroll down and Click Details Button at right side top.

Observe the paper/ in location path: it is automatically embedded with google chrome.

Click Disable Link to disable the plugin ( It is appearing after MIME type)

Completely Close the Chrome. It is fix the long-term for chrome. Now continuously watch the videos with sound automatically.

Open the YouTube video then watch the videos with sound. 

II) Method: (with remove chrome extensions)

1) Remove all the plugins then close the browser and re-open the browser.

2) R-Click on Sound icon (bottom of the right corner in your system),, then options appears > in that select Open Volume Mixer option > Now Disable sound icon appears and YouTube title with the google chrome icon.
> NOW CLICK TO ENABLE THE SOUND ICON THEN YOUTUBE SOUND WILL APPEAR

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When this problem will appears?

When a number of chrome extensions added to the browser at that time appears this problem.

While adding the extension to the chrome, in between that if you cancel the extension then it will stop. but, not cancel completely and also not appears to remove that extension.

At this time extension not able to remove the plugin perfectly, but also not visible for removing the plugin.

Most of the cases I faced at this time only this problem comes. 

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