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Is ringing audible? - Page 2

Poll Results: Is ringing audible?

 
  • 66% (6)
    Yes
  • 0% (0)
    No
  • 33% (3)
    Maybe
9 Total Votes  
post #16 of 21
Quote:
Originally Posted by chewy4 View Post

So to put it simply: identify the frequency tinnitus is at and put a notch filter on it when listening to music?

 

This is definitely something I want to look into, I've never heard about it before.

Yes, that's it.  A bit over-simplified, but that's it.  

 

Some of the research papers deal with identifying not only the frequency, but the level of the tones.  It gets complicated because some people have multiple tinnitus frequencies, and almost everyone has different tones in different ears.  The diagnostic is tone frequency and level matching, with some very low level tones in a very quiet environment.  

 

What I've never been able to define is the notch characteristics, though.  How deep, how wide, etc.  I made some assumptions based on the stability of the tinnitus tone frequency, which is that it's a fairly narrow notch, much less than 1/3 octave, and that depth beyond 20dB probably doesn't matter too much.  But that's my own interpretation.  What's also not well defined is the exposure level in SPL of the conditioning signals.  That's fairly important, and fairly vague.  Exposure time is pretty well defined, and signal content seems non-critical so long as it populates the spectrum around the notches.  Primary testing was done with noise signals, and the commercial products use noise signals that are not only notched but frequency contoured as well (also not well documented, but there's a complex analysis procedure that teases out the contour). However, there's been success with notched music, and recorded sound like surf.  The success rate is artificially skewed high because of better patient compliance...they like to listen to 20 minutes a day of music and surf better than pink noise, go figure.

post #17 of 21
Excellent information as usual, thanks and PM sent. Unfortunately Audessey don't do my phones, but I have Accudio, which I think does something similar although I have no idea how they compare.

http://accudio.goldenears.net/
post #18 of 21
Quote:
Originally Posted by Roly1650 View Post

Excellent information as usual, thanks and PM sent. Unfortunately Audessey don't do my phones, but I have Accudio, which I think does something similar although I have no idea how they compare.

http://accudio.goldenears.net/

Finally had a look at Accudio, which seems similar in concept.  I like that Accudio has a "simulation" mode, that might be fun.  I also like that it supports FLAC native.  It's missing Dynamic EQ, which is not a small thing, but if Amp doesn't have your headphones (yet) the decision is easy.  I'd drop Audyssey a suggestion to add your phones, they seem to want suggestions.

post #19 of 21
Quote:
Originally Posted by jaddie View Post

Finally had a look at Accudio, which seems similar in concept.  I like that Accudio has a "simulation" mode, that might be fun.  I also like that it supports FLAC native.  It's missing Dynamic EQ, which is not a small thing, but if Amp doesn't have your headphones (yet) the decision is easy.  I'd drop Audyssey a suggestion to add your phones, they seem to want suggestions.

 

Tell 'em about my HD558 and KSC-75s dood... They got my HD202s (which at some point may hit the road), so that's good.

post #20 of 21
OK posted a request for DT 880/990 & HD558. The request form asks for your email address, so there may be a limit to how many requests you can make. Also asks how you're going to use the phones, age, music taste & etc, which I guess is for prescreening. The link to the request form is: http://www.amp.audyssey.com/suggest-headphones.

Can anyone confirm if they got Accudio to load flac files. I can write mega Excel spreadsheets, design multi relational databases for bom and standard costing, design with solid modelling software and write g code for cnc machines, but itunes makes me feel like a total wanker whenever I try to do anything with it. I'm sure I have the latest version, but I can't get a screen that in anyway resembles what they show in the Accudio tutorial on flac import through itunes. I converted flac to wav then to apple lossless to get files to try with an iphone. Damn itunes, I guess it must be an apple v pc thing.
post #21 of 21

Dood you rock. I got my HD558 and KSC-75 request in...

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