| posts: 9,953 | Location: UK
It crackles if you exceed the maximum output of any part of the audio chain, this saturates the sine waves so that they become flat lines at their peaks, that sound bad.
Reducing the volume level at the right place will remedy it.
ie there are a few volume controls, you may need to experiment to find the right volume control that is too loud.
The idea with compressing the dynamic range is that you turn up the compression which increases the level of quiet sounds.
You then need to reduce the volume level in the same place, otherwise the compression can introduce its own crackles/distortion.
You can reduce the volume elsewhere, but the odd crackle may occur, so its better to change it where you increased the compression.
There is no right and wrong with dynamic range, its down to your circumstance or preference how you configure it.
a) If you want the full dynamic experience, leave everything on full range.
This will makes quiet things quiet and loud things loud.
To hear the quiet sounds, the main volume control will need turning up, making loud things very loud.
This is how it was intended to be heard.
b) If this is too loud, employ some range compression in one place to make loud and quiet sounds nearer the same level, then reduce the volume level.
There is no need to turn full dynamic range off everywhere, just do it in one place.
Otherwise you end up with a ton of compression and if you want to adjust it enough, you may need to find everywhere that its enabled.