This paper from Audio Precision is about jitter measuring techniques but has a chapter well describing what is jitter. To resume: jitter affects any change of domain and there are three kind of it: AD, interface and DA.
AD stage is matter of studio recording equipments and no control by the end user, the interface jitter it's the easiest recoverable and DA jitter depends from the dac clock quality.
It doesn't tell if it is easily earable, that remains personal and biases matter but I can say that cheap equipment has a easily earable jitter effect, exemple: if I send a 1KHz tone through a cheap guitar transmitter, I can see sidebars on its spectrum and easily ear them and this lead to a general more confused sound on clean tones of the guitar vs the cable.
I think could be interesting...
AD stage is matter of studio recording equipments and no control by the end user, the interface jitter it's the easiest recoverable and DA jitter depends from the dac clock quality.
It doesn't tell if it is easily earable, that remains personal and biases matter but I can say that cheap equipment has a easily earable jitter effect, exemple: if I send a 1KHz tone through a cheap guitar transmitter, I can see sidebars on its spectrum and easily ear them and this lead to a general more confused sound on clean tones of the guitar vs the cable.
I think could be interesting...