Roger Pen Hack?

I have just started to use a Roger Pen and am loving it, I am wanting to use it more often, but would rather have less power output from the pen, or at least less EMF produced by it. Especially having it laying on my chest constantly. The Roger Focus receivers are great and only emit around 0.02 mW ... not much more than a sneeze... but the pen produces 25mW according to the specifications.  Seeing the connection between the pen is bidirectional I don't see how the pen needs to put out so much more power, and I would like to experiment with either reducing the power or just simply shielding part of the antenna with mesh to cut down on the radiated energy.  I am rather sensitive to mobile phones which are significantly higher in output, but if using this all the time I would like to limit the exposure to a minimum amount.  

Because of this I was wondering if anyone here knew how to open up a roger pen without killing it, or if there was a way to hack the firmware and modify the power setting in the pen.

For those of you who are skeptical of the effects of EMF, please humor me and turn a blind eye to your doubts for the moment. Many thanks :-) 

By the way, I have an engineering background, plenty of experience with electronics and have done some hex eprom hacking in my day.

Connecting Phonak Roger Pen to Bernafon Soundgate 3

Contrary to Oticon's Streamer the Soundgate 3 does not have a DAI Europort connector, only a stereo jack. This creates a problem with for me. Normally you would connect Phonak's Roger Pen to the Roger X and connect that to the bottom of your streamer. This means that I will have to make a connector female DAI 3-pin to stereo jack.

Does anyone have an idea what kind of problems I will run into? If I connect the outer pins to the stereo cable, should I give the center pin a voltage to power the Roger X connector? Should I put 330kOhm between the ground and the pin for attenuation or would that create the same problem as with Oticon: very low loudness?

Leaving Livejournal?

I don't know about anyone else, but I'm having a very difficult time getting LiveJournal to work with the modern Chrome browser. It's painful. I'm posting this using the "mobile" version on my desktop, just to get the functionality to work. I have also tried Internet Explorer and Firefox, and I keep having issues with drop-down boxes not populating, comments not viewable, etc. It's JavaScript hell.

So...I don't mean to be presumptuous, but I have created an open community on Google+ with the same goal as this group: to discuss hearing aids and DIY electronic projects. If you would be interested in taking the discussion over there, the URL is:

I will remain a member of this community, and if people want to remain with LJ that's fine. I just think there are better alternatives for discussion now that it's 2014 and not 2005. :)

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Resound LiNX - integrated BLE seems ripe for hacking

*knock knock - anyone alive in here? :)

I just picked up a pair of Resound LiNX aids that have integrated BLE, and are Apple certified & integrate directly with the iPhone.

These things just scream for hacking I think. I've just played around a bit with a BLE app on my iPhone and they seem to have about 40+ characteristic (key/value) pairs, that I'm assuming have to do with programmed state - default volumes, programming, etc.
  • Current Music
    Things Have Changed, Bob Dylan


Hi there, can anyone help me with a hack so as to use my icom with a fm receiver,as the one from PHONAK (MLxi) is way to much ($1000) here in new zealand, I have the smartlink and would like to use the microphone from it through the icom to my naida's hearing aids,thanks
  • rhlll

Just got my new hearing aids

 After many months, the Foundation I approached for financial aid, finally answered. It turned out that lost my file, so the never processed it. I guess they choosed to losen up a bit on their usual rules, since I've been waiting for a long time, as they usually don't give help to people having less than a 35 decibels loss. So I finally had my new hearing aids last thursday. I was really happy, and I admit that they were long due.

The next morning, I arrived at my job, where one of my collegue was asking about the hearing aid, but didn't quite see them as he was expecting something bigger. I didn't say it to other people, so it came much later during the day until other noticed them. After I did show them to one of my collegue, she actually laughed noticing, it's weird I didn't say ''what!?'' yet that day. It's weird to hear so much noise around me, but I try keeping the aids on. At first, I had the impression it didn't make much difference while I was watching tv, but when I remove the subtitle, and compare with them on and off, I see an important difference. But well, they still need adjustments...

One thing that will look weird at first, is that I believe I have more trouble hearing some people I could hear before. They didn't increase the frequencies I could already hear kinda well, and it might be a problem to have a mold in my hear in this case. I was at the convenience store, and could hear very clearly the sound of the fridges, but the voice of the salesperson seemed to come from the back on the room, while the guy was standing in front of me.

I will be getting the Smartlink+ this thursday, but I tried the ComPilot this week. I don't know if mine is defective, but I hear a lot of noise when using it, especially when a female is talking (including my own voice). I wish it stayed connected when the sound from the bluetooth audio source goes off. Also, it's so long to change mode (I would deal better only with the color code) and the fact you don't hear external sound when the voice menu is speaking is a bit nuisible. Do you know if the settings could be altered?
  • gertlex

Modified DAI pinout idea

I've often desired to be able to have an earbud that you can plug a DAI cable into, and have a functional earbud. 

The main problem with this has been that the DAI cable often is (and should be!) attenuated.  Thus, the earbud would be super quiet if you just attached it in this manner.

It just occurred to me that the middle pin could be connected as unattenuated.  Earbuds would then connect to the ground and center pins, and ignore the attenuated pin.

To illustrate, it is this
but with the V_dd pins connected to the respective left and right connections on the stereo jack.

As far as I can recall, I've never seen this pin actually connected to anything - it's just there for robustness and/or ease of insertion of DAI connector into a hearing aid's boot, I think?  Has anyone ever seen a situation where this would be a bad idea?  Obviously this is only really relevant if you're making a custom DAI connector (does anyone besides me do this?...).


Newbie, Looking for first HA

Wishes to all Guru's of this community ...

Every since my ENT doctor asked me to go for a HA, sometime back in 2010, I have been looking for HA info over the internet. Today, I am lucky to find this group.

I am from Bangalore, India and in Mid 30's, Married with two kids. (Was) Leading a active life. Now a days, it becoming very tough to lead a day to day activities due to hearing loss. My latest test shows 40% - 50% loss. There is a humming sound or the sound of fly flying always in the Ear.

I have been to various hospitals & HA clinics and have got the tests done. The doctors advise is to go for HA. The audiologist in the private HA centers always recommend HA's above 1200+$ to 2200 $per ear -  which is total way out of Budget.

Bangalore has one HA clinic per manufacture (ReSound, Phonak, Seimens, Oticon, rexton, widex etc) except for panasonic who are yet to be seen in India.

I understand that I really do not fit into your your hearing-aid-hackers as of now as I still do not own any HA. But I intend to use the knowledge here to know more about after affect of buying & using HA. Thanks to you all in this forum.

I still have not closed on the brand or the type. I need a great help here. These new generation HA are complicated and confusing. Do not have clear understanding about them. Has anyone bought HA from '', how are their products? Are they recommended? found this website to be honest. There are lot of articles covering hearing loss including 'diabetes and hearing'

I would alos like to check with fellow HAH in Bangalore to get more understanding. From old post's I could find flycatcher27.
@flyCatcher27: If you are still around, can you please help me out.
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    calm calm
  • metamel

You have 8 audiology students, 8 hrs/week for 16 weeks - what do you teach them? (Really happening!)

Okay, folks -- I need some help. I get to teach an audiology class next semester to 2nd year doctoral students preparing to become clinicians. (My background is in electrical and computer engineering; the course title is "signal processing for speech and hearing systems," so they'll need to do something around that topic.)

My mission for this class is to help the audiology students become the sort of audiologists I’d want to have myself as a deaf geek. I have three ideas that I’d like folks to give the “crazy test” to (as in, feedback: is this cool or is this crazy?) and I'm super-open to suggestions. I'm co-teaching with a (hearing) friend of mine who's also a PhD student in engineering education and specializes in teaching DSP and researching how to teach it better, so we're really prepared to tackle just about anything in this technical realm (the trick will be translating it for audiology students -- who, by and large, aren't electrical engineers or programmers.)

In short, what I'm thinking is:
  1. Have the class write the course textbook — open-licensed resourcesfor an audience of geeky hearing aid users and their companions. (Hi. Interested in being a test audience?)
  2. Flip the classroom, Oxford style - we only have 8 students, so use class time as "project time" (for us to all work on the book together). Since we won't be lecturing, students will have readings/videos to self-pace-learn through materials, then meet with one of us for 30-45 minutes each week to go over questions in a far more individualized manner.
  3. Use Python, not MATLAB. Waaaaaaaay less painful for people who have never coded before. And makes it possible for any code samples we come up with for the "textbook" to be run by people without a fancy software budget.

The full writeup is at and I'd really really love to hear thoughts.

I want to take book section inspirations, assessments/homework/etc, from questions in this forum and on the Big Tent forum for musicians with hearing loss -- real people, real users, asking actual questions about their hearing devices and their lives. (I want to have audiologists who can answer our questions about this stuff, but we've got to show them the questions first.) I want to do all sorts of things, and... I don't want to kill myself with overwork next term. So! Ideas, thoughts, resources, help, please!