Our member generalfuzz has created a nifty web application that you can use to administer your own Acoustic Coordinated Reset Neuromodulation therapy!
Please see this website for more information and the instructions: http://generalfuzz.net/acrn/
Original Post Begins Below:
The following is be a guide on how to create your own Acoustic Coordinated Reset Neuromodulation audio.
The study can be found here:
http://iospress.metapress.com/content/r771875822464323/fulltext.pdf
To make this it will take around 1-3 hours, depending on your computer usage ability. It is boring and tedious as I can't make a program to just spit out the final product. But seeing as how companies are charging 5k for this. It is worth a shot if you have time and want to give it a shot.
My method goes uses information provided in the studies and from a de constructed sample from a professional service. It may not be exactly the same as what is provided by a professional service.
First and foremost, you need to find your tinnitus frequency. This is the most important thing to do. If this is incorrect, you will just be wasting your time. If you don't know it, I suggest you spend as much time as possible trying to get the frequency as close as possible. Don't even start unless you are comfortable that you know it.
Method:
Play 4 sine tones, 2 above and 2 below your tinnitus frequency. In a random order for a sequence of 12 tones follow by a short break.
Tone 1 will be (tinnitus frequency - 900hz)
Tone 2 will be (tinnitus frequency - 400hz)
Tone 3 will be (tinnitus frequency + 400hz)
Tone 4 will be (tinnitus frequency +1500hz)
Creating your audio:
To do this you will need an audio editing program. I use audacity. It is free. Google it, download it.
Step one creating the tones:
In audacity go to the top menus and click generate>tone.
Waveform: Sine
Frequency: Whatever your Tone 1 frequency is
Amplitude: I did 0.5 (closest match to the sample)
Duration: 0.15 seconds
Now you get a nice tone. But it isn't finished yet. Click the selection tool (above the magnifying glass) and highlight the first 0.07 seconds of the tone. Go to the top menu, click effect>fade in. Repeat for the last 0.07 seconds for fade out. After this click at the end of the tone so it is no longer highlighted with the selection tool. Then go to generate>silence and make 0.01 seconds.
Repeat this process until you have created your four tones.
These are now your reference tones. Now comes a whole lot of copy and paste. Here is the following order of how I did mine (going of sample deconstruction).
1-2-3-4-4-2-1-3-4-3-2-1
After this you have your first set of 12 tones. Now you need to add the silence component. So again click generate>silence and do 1.4 seconds. Following this you will do another 12 tones -> silence -> 12 tones ->silence and so on. Here is the full tone structure if you want to copy mine.
1-2-3-4-4-2-1-3-4-3-2-1
silence
2-4-1-3-1-4-2-3-4-3-2-1
silence
3-2-4-1-4-2-1-3-1-4-2-2
silence
2-3-4-1-1-2-4-3-4-3-2-1
silence
1-3-2-4-4-2-3-1-4-1-3-2
silence
2-3-4-1-4-1-3-2-2-4-3-1
silence
2-3-4-1-3-1-2-4-1-2-4-3
silence
1-2-4-3-4-3-1-2-1-4-2-3
silence
After this you should have a sequence that goes for about 30 seconds. You can add more random tones if you wish. It should look something like this, except much longer.
In regards to volume, it should be just high enough to mask your tinnitus.
Export the audio to an mp3 and away you go.
*note 1 - I found if you have a high tinnitus frequency, listening to the high pitch tones over and over, especially tone 4 can be uncomfortable. I don't know how many people in the study had a high frequency as I think they mentioned the median frequency was 4khz.
*note 2 - If you are getting zero RI after a 30 second loop, not even 1 second. Something is wrong, either it won't work for you, or you got your tinnitus frequency incorrect (this happened to me the first time).
*note 3 - Although they boast a 70% success ratio. They had a somewhat specific sample group. It had to be within a certain frequency range, had tinnitus for a certain period of time (I think atleast 6 months), did not have TMJ etc.
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EDIT by Markku: All talk about this Do-It-Yourself method can go in this thread you are now reading. Thanks to jibs for a comprehensive guide.
However, if you are participating in an Acoustic CR clinical trial or have bought that device and use it, then please use the original ACR thread, which you can find by clicking here.
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