<prompt> Audio analgesia is:Source of distractionPain killerBothNone  <response>: Audio analgesia: or white noise is a method of reducing pain. This technique consists of providing a sound stimulus of such intensity that the patient finds it difficult to attend to anything else Gardner, Licklider, 1959. Auditory stimulus such as pleasant music has been used to reduce stress and also reduce the reaction to pain.Shobha Tandon 2nd Ed p:150 