Scott Hanselman

South Africa 2008 - Make Your Own Dual 1/8" Airplane Headphone Adapter

December 27, '08 Comments [15] Posted in Musings | Tools
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CIMG8756We are heading back home after our holiday in South Africa. A couple things didn't go as planned, and I was only able to get two podcasts done as two other interview subjects had scheduling issues. I think I'll interview my Wife and get her take on it.

Anyway, I was sitting here on the plane using my favorite Etymotics Research ER-6i headphones (LOVE these. Seriously, been all over the world with them) to watch Wall-E on the tiny TV they've got here on Air France. I was lamenting the fact the I was only able to listen to one channel of sound. I was only hearing sound of the left ear, since these silly planes often have that dual 1/8" headphone thing. I assume it was either just stupidity on the part of the airlines, or it was to support them charging us $5 back in the day for their crappy headphones.

CIMG8755You can buy dual 1/8" to single 1/8" headphone adapters, and in fact, my older pair of Bose Headphones came with this adapter. However, it was lost a year or so ago, so bummer for me.

Air France gave use these crappy headphones with the dual headphone jack at the end. I used my teeth to cut it and strip the wires about 6" back from the end. Then I asked the flight attendant for some kind of tape or stickers. He gave me some white Avery labels they use for some paperwork.

Remember that a regular headphone has three wires, two that hold sound and a neutral/ground (I think...need to look this up). Basically, there's two colored wires and a white one. The wires inside the dual headphones had two white and two colored.

image

The male end of my headphones has three bands. Using trial and error via my ears, I wrapped the stripped wires around the bands until I heard stereo sound. Then I covered the whole thing in the stickers,

Fortunately the flight attendant was cool and didn't mind be rewiring the plane, but your mileage may vary. I could envision a scenario where this activity would freak out a "lesser" flight attendant.

Or, just buy an adapter. You tend to look for things to do when you've got 26 hours of flying ahead of you.

About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Sunday, December 28, 2008 4:51:47 AM UTC
Messing with wires and tape is something I'll never dare to do in a US-bound or US-originated flight.
Sunday, December 28, 2008 6:13:59 AM UTC
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TTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORIS
TTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORIS
TTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORISTTERRORIST
hNKEFGBAY
Sunday, December 28, 2008 6:56:52 AM UTC
sorry Scott,

VANDAL!!! you scare the crap out of me. my inner geek is sobbing like a little girl. i'd jump off the plane and learn to fly if i knew you were onboard. dude!!! ever heard of a good book? Steve McConnell's Code Complete? One of Donald Knuth's books? War and Peace?
imagine a flight to some devcon or PDC and some one yells, "HEY SCOTT HANSELMAN IS ONBOARD!!!" wouldn't that cause mass hysteria and seeking of the exits? or would there be debate on whether the plane had USB and dotnet extensibility?

Man you are a "shivers down my back", "doesn't know enough to leave weeeeeeeeell enough alone" geek
jake
Sunday, December 28, 2008 7:04:58 AM UTC
MacGyver, if you had Bose's Quiet Comfort headphones, http://bit.ly/hfv2 you'd have every adapter in your case.
Sunday, December 28, 2008 7:14:59 AM UTC
Not much help to you now, but I've always had success in just pushing your headphones plug 4/5's of the way in (and the plug always stays in fine), then you get sound in both ears. It's worked on every plane I've been on in the last 6 months, and that's been a few. It may not be complete stereo, but it saves that lopsided feeling you get after a few minutes of listening to sound in one ear, and airplane drone in the other.

I really think I, like you, should invest the few bucks for an adaptor and attach it to my passport .. :-)
Dave
Sunday, December 28, 2008 7:55:32 AM UTC
Guy travelling with 2 kids and a wife...certainly not the terrorist type. You are right about the wiring. FYI the 1/8" plug is called a Tip Ring Sleeve (TRS) plug because, well, thats what it is. The tip is usually left, the ring is right, and the sleeve is neutral. When in doubt connect the source to tip and ring and you'll have both sides, but only in mono. BTW, nice schematic :)
Sunday, December 28, 2008 12:50:12 PM UTC
Good job! Your inner geek is much bigger than mine :-) I'd probably recommend anyone who looks remotely middle-eastern to avoid this kind of activity though, as it could easily cause a bad reaction from other passengers or cabin crew, seeing someone start stripping wires, etc.
MRK
Sunday, December 28, 2008 2:39:11 PM UTC
Did you use Visual Studio to render that drawing?
-Rich
Sunday, December 28, 2008 6:02:23 PM UTC
Air Canada is good enough to charge you for the head phones but provide you with an adapter for free. I have one and have tested it on a number of different airlines and it works just great.
Sunday, December 28, 2008 11:15:07 PM UTC
Fantastic! I love that the toolkit for the hack was teeth and Avery labels.

A/V repair is fun.
Monday, December 29, 2008 8:24:25 PM UTC
Scott,

Nice hack, but I'd agree with what was said in other responses that this was the wrong time and place to do it.

Devu
Devu Pandit
Monday, December 29, 2008 9:50:29 PM UTC
Scott,

If you've got the Bose headphones, the kiosks in airports are more than happy to give you a replacement for lost/broken adapters. I've been exceedingly impressed by their customer service.

Jeff
Monday, December 29, 2008 11:43:38 PM UTC
US airlines (at least Delta for me) give the adapters for free with their headsets. When I leave the plane, I leave the headset behind and keep the adapter for later use.
Abdu
Friday, January 02, 2009 8:07:55 PM UTC
Briliance!
I loved reading this story. Having flown internationally several times myself, I understand the feeling of looking for things to do on the flight. Grats to you for the adaptation of freely available materials too. I get the feelings of fear around anything to do with rewiring while onboard a US in-bound flight though. I'm sure if you'd dipped one end of the headphone wires into a bottle of gatorade and the other into a travelers tube of toothpaste you'd be in a holding cell right now. :)

Gotta love inventive hacks to solve problems though, especially the ear testing to see which band matched which wire. My mum used to get so nervous when I'd played with my electronics kits as a kid thinking I'd electrocute myself. I'm sure there were people thinking that as you bit off the end of your headphones and started stripping the wires with your teeth. ;)

Happy New Year,
-- Stu
Sunday, January 04, 2009 3:14:09 AM UTC
Brilliant. Necessity is indeed the mother of invention. :-)
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Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.