Why does 5.1 acoustics not work?

Question

USB

Operating system: Windows 7.
Sound card: Realtek HD
Acoustics: Genius SW-N5.1 1000
There is also such a thing, a USB expander, it seems.
In properties put 5.1. Drivers installed. When you do a "check" in the properties, it sees all 5 channels of sound, but in the browser it only plays through 2 channels.

Answer 1

You can set the settings to scatter two-channel sound into five channels.

Answer 2

Not knowledgeable at the level of a specialist in this topic, but as far as I remember my similar problems - mp3 you will not diverge into 5 channels, this is how this world works. Try downloading songs in flac format, it will go to five channels. And in the well-known marginal social networks, audio is lying around in mp3.