Definitions

Sound pressure

The deviation from the ambient atmospheric pressure caused by a sound wave

logarithmic scale used to denote the intensity of a sound

The time required for one complete cycle of compression and rarefaction

physical measurement of cycles/second, measured in Hertz(Hz)

the dB level above the patient’s threshold at any frequency, abbreviated SL

Toward the face or the front; opposite of posterior

Toward the back; opposite of anterior

Toward the side; opposite of medial

Toward the middle; opposite of lateral

Above; opposite of inferior

Below; opposite of superior

Located close to a reference point

Located away from a reference point