It seems the audio engine is limiting & distorting sounds at 0dB instead of when they go OVER 0dB.
I made a perfect sine curve sound that peaks at 0dB and replaced Katiba single and Katiba single SUPRESSED sounds with my sound, at different volume settings.
Config values:
Single - 1.0
SGL Supressed - 0.9
At 1.0 volume config level the sound is DISTORTED, not much but it is!
This must not happen, because most samples we use are at max volume (normalized) and we do not expect distortion at 1.0 value in configs. {F25225}