Problems handling files with AC3 audio

[Trifan]

I've tested this out with other video files with AC3 whatever audio and they all have the same problems. On my left speaker the characters' voices are quite loud and audible but my right speaker only has background noise or nothing at all
Example
http://wizardchan.org/hob/src/1s6nuqcm.wizardchan.hound.webm
http://wizardchan.org/b/src/1s78kd64.wizardchan.drunken.webm
http://wizardchan.org/b/src/1s78kmsp.wizardchan.hannibal%20audo%20test.webm
You can hear dialogue coming out one speaker and a bunch of background noise on the other or nothing too right?
The original videos on mpc-hc sound nothing like this. I can clearly hear the voices and background noise from both speakers.

I don't know if this is true for other audio types but I haven't encountered any problems with audio in webm besides AC3