Android. Uneven sound when watching a video?

Question

Android

When I watch the video through the browser on the phone, there is an increase in the sound at the beginning of each cue. I noticed for a long time, but did not attach any importance to this, I thought it was in the video file itself. But on the computer the same video plays correctly (sound). What could be the reason? Android 5.0.1 Lolipop, Opera browser, chrome.
Ps I tried to download and watch the video, the same

Answer 1

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