Reference was made to Jeremy Turner earlier in this thread. Apparently he is a PhD, not a surgeon, and has a company called OtoScience Labs. From reading their website, they have a $1.5 Million grant from the US Dept of Defense to develop and test an object measure of tinnitus. They have licensed technology from Southern Illinois University- I think the patent numbers are on the website somewhere if you want to delve further. It appears they are looking for people who may be interested in becoming clinical volunteers.
https://www.otosciencelab.com/tinnitus-testing--research
PS- Jeremy Turner is also finishing up his term on the ATA's Scientific Advisory Committee this year.
https://www.otosciencelab.com/tinnitus-testing--research
PS- Jeremy Turner is also finishing up his term on the ATA's Scientific Advisory Committee this year.