When I noticed that the volume played by the browser was very low, I checked the tightness of the hardware screws. Later, I tried to play mp3 directly with the software, and installed a game emulator to try the game. I confirmed that the low volume is a browser-specific problem. Play The volume of the software is higher than that of the browser, and the volume of the game is the highest (personal subjective can clearly perceive it). I tried the volume of firefox and chromium, both are very small.
Not sure why this is happening and how to fix it?
In order to describe the problem, I recorded a video, but after recording, I found that it could not be uploaded.