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.
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.