Comprehensive Stroke Certification Fees and Benefits. The Joint Commission and American Heart Association / American Stroke Associationâs Comprehensive Stroke Center Certification includes a new and exclusive suite of benefits. The annual fee for the first year is prorated depending on the date of application for certification.
1 When the bones of the middle ear do not vibrate and become stiff, it can give rise to a hissing and vibrating sound in the ears. 2  Rupture of ear drum either due to trauma or due to loud sound can cause vibration in the ear during the initial stage. 3  Infection in the ear, cold and sinusitis can also cause vibration.
What makes a sound a sound? Sound is vibration of (mostly air) molecules. Humans hear sounds from about 20 Hz (=20 vibrations per second, deepest bass) to about 20.000 Hz (20.000 vibrations per sec., ver â¦ y high sizzling) The vibration is tranmitted from the air to your ear and your brain interprets it as a sound.So actually YOU make a sound a sound :-).33 people found this useful.hat makes a sound a sound? Sound is vibration of (mostly air) molecules. Humans hear sounds from about 20 Hz (=20 vibrations per second, deepest bass) to about 20.000 Hz (20.000 vibrations per sec., ver â¦ y high sizzling) The vibration is tranmitted from the air to your ear and your brain interprets it as a sound.