Need a Little Help Recreating a Noise

My name is Ryan and I'm a sixteen year-old who developed tinnitus in Early June this year. I hear a constant hissing noise in both ears that's noticeable over large crowds of people talking. This has thrown me into despair.

Earlier today, I found a video that has a pitch that I can barely hear makes my tinnitus almost completely imperceptible. Needless to say, I was overjoyed. It ALMOST feels like I have silence back in my hands.

There's only one problem, though: it's one pitch out of multiple in a looping pattern. Not to mention the pitch last for about only a second. So I was wondering if somebody would have any idea what frequency the highest pitch in the pattern of the video is. Or if anybody could make a loop of the last pitch in the pattern.

Here's a link to the video:

High Pitched Tinnitus Masking

Be warned, the video is really loud for some obnoxious reason, so keep your speakers low.

Thanks