I have severe  Tinnitus which--for some reason--is frequently most
severe when sitting at the computer. My T consists of a single tone or
"whistle" at around 11,000 cycles, just below the upper limit of my
hearing.  It varies between being binaural and centrally perceived.

I use my computer's audio capabilities, combined with a set of decent
stereo speakers, to generate a field of masking noise that does a very
good job of providing some relief.  It substitutes the horrendously
irritating T noise with a more palatable and relatively pleasant
noise.

I use a freeware audio generator program called fg_lite.exe, available
here http://www.marchandelec.com/programs.html . The key is to use the
dual channel  capabilities of this prog to generate a stereo noise
field, which seems to be more effective than a monophonic (single
channel to both speakers) field.  Volume and noise type can be
independently adjusted on each channel.

I have some  noise induced hearing loss which is worse in my left ear.
For this reason, I use pink noise in the right channel, and white
noise in the left channel.  "Pink noise" has progressively less energy
as frequency increases--my better right ear needs less high frequency
energy.  

This stereo, dual noise-type sound field is quite effective. I would
go mad without being able to find refuge in its immersive,
neutralizing capabilities. It is also possible to burn this  to a
cdrom and play it on a cd player. Using headphones, this is especially
useful at night.

There are obviously some minimal technical aspects to setting this up.
It so happens ironically that audio used to be a beloved hobby, but no
more since I also frequently have severe hyperacusis. Post here or
e-mail me with any questions. I have no affiliation with Marchand
Electronics. I just did a search and found the program and proceeded
with experimentation.
Regards,
Dave

ddhartwick
AT
earthlink.net