sound crash(noise continues without stopping)

My Mac Info:

- MacBook Pro 13-inch, 2018 w/ CTO(i7 CPU, 16GB RAM, 512GB SSD)

- macOS High Sierra 10.13.6 + additional update(maybe throttling patch?)

-

choiui-MacBook-Pro:~ cys$ uname -a

Darwin choiui-MacBook-Pro.local 17.7.0 Darwin Kernel Version 17.7.0: Fri Jul 6 19:54:51 PDT 2018;

--snip--

I was listening to music, but suddenly I heard a strange sound like the link below.

MacBook Pro13 w/ CTO sound crash - YouTube

The sleep, restart, and power off commands did not work as in the video. So I turn off my Mac using Power Botton.

I saw the news that the MacBook Pro 2018 had a sound problem. Am I experiencing the problem? Or is it a another or one-time issue? What should I do to get a more accurate analysis if the same phenomenon recurs?