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
Body part as an object distinguished by how they are carried out. For example, BPO mime gestures are differentiated by the insertion of a body part to help represent the object itself. Conversely, Imaginary object (IO) pantomimes occur when an individual mimes the use of an object as though the object were actually present. Using a similar example to above, an IO pantomime occurs as an individual pretends to brush their teeth by positioning the hand and fingers as though the toothbrush were actually in their hand: they are pretending the object is actually present. BPO, and BPO measures particularly, are notable in that they