

Yes, there’s a stop of exhalation between the s and the K. If there wasn’t, it would sound more like the sk of the English word sky instead.
EDIT: He does not, however, stop between Kindern and werden and not between werden and Leute, which does sound weird to me. Less like standard German and more like a dialect.



I’ve corrected my previous comments w.r.t. the terminology, thank you.
That being said, assuming those two spectrograms are using a comparable frequency scale, they show quite a bit of a difference: The upper spectrogram shows a near complete “black” stop across all but the lowest frequencies, while the lower spectrogram does not: The 2nd-lowest frequencies continue virtually unchanged, the mid frequencies are only reduced to a dark purple, not completely dark, and only the upper frequencies are truly dark. Those are not the same sound.