Sound: A deep, vibrating hum or pulse, layered with a low-frequency rumble—like bones vibrating or muscles flexing at a superhuman scale.
Example: "VOOMMM–thrrrum–thrrrum"
0:25
Cartoon head bump rising sound low rise hum
0:15
low hum continue
0:01
A deep, electric hum with a muffled, loud
0:06
Dripping water ambience (very faint loop) + low hum.