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.
American Tinnitus Association ATA funded grant, applicants are required to show the relevance of their application to the Roadmap for a cure. The ATA is a 501(c)(3) association. American Tinnitus Association The American Tinnitus Association (ATA) purpose is to promote relief, help prevent, and find cures for tinnitus. Starting in 1980, the association has granted close to $6 million dollars in funding for tinnitus research. Many of these researchers have gone on to receive larger grants from the National Institutes of Health (NIH) based on ATA-funded research. Contributions to the association also go towards advocacy work in Washington, D.C. The ATA was created