Today I was part of a research project for a music technology student at my uni. The researcher gave tones and I would say which one is the highest frequency and then they give you white noise with a tone and as it goes on the tone gets shorter and you say when it stops. But the first test they gave was a specific frequency and as time went on, the frequency went up.
You had to indicate with your hand when you heard it change...this is why I am poor at math but can EQ a violin...*grin*
So here are the frequencies and when I heard a difference:
*big huge grin!*
And yes, I am officially a geek.