Tinnitus masker issues associated with use of tinnitus maskers: the "safe" level of continuous sound depends on the duration of the sound. For maskers worn continuously, or most of the day, a safe level is no more than 70db, in accordance with EPA maximum safe exposure level for 24-hour environmental sound. Maskers louder than 45db or so (the ambient background level of an average home living area) may start to interfere with understanding conversation (about 60db). Masking of high frequency tinnitus (>6,000hz) is difficult because of the resonance characteristics of the human ear as well as high frequency limitations of in-ear devices.
Body without organs gestation of a formation yet to come, and the potential formation of many actualities from a single origin. In "Anti-Oedipus" Deleuze and Guattari expand the Body without Organs image by comparing its real potentials to the egg's : The body without organs is an egg: it is crisscrossed with axes and thresholds, with latitudes and longitudes and geodesic lines, traversed by gradients marking the transitions and the becomings, the destinations of the subject developing along these particular vectors ("Capitalism and Schizophrenia", p. 19). For Deleuze and Guattari, every actual body has a limited set of traits, habits, movements, affects, etc.