osu cut's out half of the songs original volume. If I listen and compare audio file itself it sounds fine, but in osu it's realy quiet compared to other maps. Is there any solution to this?
this can tell you something, but not necessarily, for example if you have encoded it into 192 yourself before importing, or it was encoded like that for you when you downloaded the file, that won't tell you the real bitrateZelzatter Zero wrote:
Check your audio bitrate. 128kbps tend to have a noticeably lower volume than 192.