The remarkable thing is the whole image of the record object on film very susceptible to interference if the object being rocked, though is very light shocks by sound.
What is noteworthy is the recognition of the object hologram on film very susceptible to interference if objects shake, either very mild concussion by sound.
It is worth noting that holographic recording of objects in the film is easily disturbed if the object's vibration, whether it is an earthquake, because the sound is very light.