Audio garbled by non matching sample rate in Linux version of CK II

[mmalahe]

The After The End main title and the vanilla CK II music files are at 44100 Hz, but the other After The End music is at 48000 Hz. It seems like these 48000 Hz files are being interpreted by CK II as 44100 Hz, leading to the music being garbled noise in game. This was fixed by converting the sample rates to 44100 Hz, with for example, ffmpeg -i Sardana.ogg -ar 44100 Sardana_newrate.ogg.

This was observed in Ubuntu 16.04 and CK II version 2.5.2.2.