Tinnitus masker The ear has a resonance frequency (highest frequency response) at 3,000hz and rolls off at a very steep 26db/octave on the high frequency side. Unfortunately, most tinnitus is associated with hearing loss, and most hearing loss and tinnitus is high frequency. Most maskers are limited to about 6khz of effective output. Higher frequency output results in increasing distortion, and may cause rejection of the device. The minimum masking level (MML) is the minimum amplitude of narrowband noise centered on the tinnitus pitch (or frequency range) necessary to completely mask the tinnitus. Tinnitus maskers are commonly used by tinnitus sufferers when
The Gifts of the Body the patients and the caregiver. The book contains ten short stories, the titles of each being associated with "gifts" which are various functions of the body, both physical and emotional: sweat, wholeness, tears, skin, hunger, mobility, death, speech, sight, hope, and mourning. The caregiver experiences each "gift", as he/she deals with patients who have AIDS, showing the different shared relationships in each case. Each patient is a distinct case, differing in terms of age, financial situation, attitude toward the illness etc., showing the reader that this disease affects all types of people. The book is written in the "no-frills style"