Calibration in rhythm games is difficult because it is very complicated. There are a lot of different parts involved when playing a rhythm game:
- Digital audio cues (the music, the hitsounds) and how your brain processes them
- Analog audio cues (the physical sound of tapping the controller/keyboard/drum, other audio distractions in the room) and how your brain processes them
- Visual cues (the moving notes, the timing judgment words) and how your brain processes them
- Your own personal skills and abilities (sense of rhythm, physical ability to press keys/buttons (i.e. muscle mass, energy), muscle memory for specific songs and patterns, etc.)
- Audio latency (the time it takes between a computer generating a digital sound, your speakers/headphones generating physical vibrations in the air, and those vibrations reaching your ear)
- Visual latency (the time it takes between a computer generating an image, your monitor generating light, and that light reaching your ey
