Displayed value at "AutoAmp"

[lukass2000]

Hi!
What's the difference between the two indicated values as in the screenshot?

Most mp3 files have an indication "e.g. ReplayGain: +6,5 dB" (such as in the upper picture), but some like at the bottom picture "e.g. x1,43".

Do not understand why, thes are both mp3 files?
Thanks

 

[djsoft]

When it says ReplayGain, it means that file has ReplayGain tags, and RadioBOSS uses values from there.
When it says "x1.43" it means that there's no ReplayGain present and you have AutoAmp enabled - AutoAmp is a sort of AGC (automatic gain control) - it tries to make all tracks play at the same volume.