lecturer 1 [j] in isolation lecturer 2 [j] in isolation lecturer 3 [j] in isolation
Based on Maciołek & Tambor (2012)
Voiced: the vocal folds are in contact, the air coming from the lungs causes them to vibrate.
Palatal: the middle of the tongue gets close to the hard palate in the highest part of its vault.
Approximant: the articulators get closer than with vowels but less than with fricatives. The soft palate lies against the back wall of the pharynx.