One thing that we've noticed at AudioNotch is that we get a lot of interest in our tuner. Some people have used the tuner to generate a tone to be used for tuning instruments like guitars. We wanted to share another great site that we've discovered which can do the same: FreeTuner.co is a simple web application that can figure out what note is being played based on a sound! We only wish that it was that easy to find your tinnitus frequency! Cheers, Adrian CTO at AudioNotch