Don't worry, keep doing the exercises and meditations, the 'louder' is it "coming out" and falling away...
However, there's some extra stuff you can do to improve that.
The ears are connected with kidneys, so visualize/send your kidneys a boost of energy can only help.
The back of the head and base of the neck, opening these points will help also. Do small universe or just feel the energy of that area becomes very clear and flowing, rather than stiff.
On the level of effect--the level solidified reality/level of 'form' ""it is useless to work with a problem on same level that the problem exists on"" (I think Einstein said that one), so we go need to go back to being 'at cause' and look it from there...then there's no problems at all, just energy.
Energy is INFINITE--with Limitless Possibilities... One of the many ways to 'correct' the "problem" is to view the energy labeled as 'tinnitus' as a 'sound wave' that got trapped in that area and is 'bouncing around' Gently use your mind to find this energy and simply let it out by releasing it to the Universe. We know that you can't 'get rid of' the *result* of the energy labeled as 'tinnitus' as an *effect*, ...but gently find the *cause* of the "energy labeled as 'tinnitus'" and work with that. Part of you knows how to do this already.

~Z