Jackhammer Headphones
Intro: Jackhammer Headphones
These home-made hifi headphones work as well or better than Sony or Bose noise-cancelling headphones.
Cost: $20
Time to make: one minute.
Difficulty: none.
As seen in my article in Make Magazine volume 5
Unlike the commercial products, these block outside noise instead of cancelling it.
Listen to music or books on tape without hearing traffic noise, screaming babies, etc.
I've been making these for more than a decade. People sometimes ask "isn't it dangerous not being able to hear?" No. Talking on a cellphone shuts off most of the brain whereas listening to headphones is no more dangerous than say, being deaf.
Lots of my friends use these units and no harm has come to anyone.
Now on Know How! Click on the steps above for more details.
When you're done with this episode, check out episodes two, three, four, five, six, and
seven!
Cost: $20
Time to make: one minute.
Difficulty: none.
As seen in my article in Make Magazine volume 5
Unlike the commercial products, these block outside noise instead of cancelling it.
Listen to music or books on tape without hearing traffic noise, screaming babies, etc.
I've been making these for more than a decade. People sometimes ask "isn't it dangerous not being able to hear?" No. Talking on a cellphone shuts off most of the brain whereas listening to headphones is no more dangerous than say, being deaf.
Lots of my friends use these units and no harm has come to anyone.
Now on Know How! Click on the steps above for more details.
When you're done with this episode, check out episodes two, three, four, five, six, and
seven!
STEP 1: The Three Ingredients
1) Industrial ear-protection earmuffs from McMaster-Carr, etc.
These are Peltor model H10A, my favorite.
2) Airline or walkman headphones of the one-wire-per-ear variety.
3) A cutting tool.
These are Peltor model H10A, my favorite.
2) Airline or walkman headphones of the one-wire-per-ear variety.
3) A cutting tool.
STEP 2: Cut Off the Head Loop
clip, cut, or chew off the plastic loop that connects the earpieces.
STEP 3: Shove a Speaker Into an Earpiece
Peltor brand earmuffs are perfect for this. there's a rim inside that holds the speaker in place.
STEP 4: Speaker in Place
it looks like this.
STEP 5: Finished
repeat with the other speaker, and you're done! enjoy!
If your earlobes are the right shape to use earbuds, you can do something even easier,
which is just wear the industrial earmuffs over earbuds. My earlobes don't have that keyhole-shaped bracket thingy that retains earbuds, so they fall out.
If your earlobes are the right shape to use earbuds, you can do something even easier,
which is just wear the industrial earmuffs over earbuds. My earlobes don't have that keyhole-shaped bracket thingy that retains earbuds, so they fall out.
STEP 6: Comparison Testing
I was fortunate to run into these gentlemen wearing different active-cancelling headphones.
The verdict - The Jackhammer Headphones win on
Quietness
Good-soundingness
Not-needing-battery-ness
Big-puffy-ness
Red-ness
and
Cheapness!
The verdict - The Jackhammer Headphones win on
Quietness
Good-soundingness
Not-needing-battery-ness
Big-puffy-ness
Red-ness
and
Cheapness!
187 Comments
Ricardo Furioso 3 years ago
wabrown14 8 years ago
That is interesting
mrmerino 11 years ago
marianovidor 10 years ago
I have already tried that, and it won't work.
The effect you will hear from the outside is te same as on a sea shell; it's very annoying.
Although, if you are planning to make a tiny hole to fit the cable, make sure to seamlessly re-fill it. It should be perfectly tight, otherwise you are gonna end up with the annoying sea shell effect.
A sort of rubber little tube; maybe hot silicone, hot glue to seal it down? You would probably need to detach the cable from the speakers to pass it through the little hole and re-solder after that.
I never got that far on my experiment; maybe it would have solve the undersea effect problem.
brainmist 11 years ago
brainmist 13 years ago
First, if you block out a lot of ambient sound while, say, biking in traffic, yes, you do increase your risk of injury. It's fine to say it's just like being a deaf person, but people who are born deaf learn to pay attention to other cues, whereas people with some hearing learn to depend on hearing for peripheral alerts. (I also wouldn't recommend distracting yourself with a cell phone while in traffic.)
Second, if you use these in industrial or noisy recreational settings, don't crank the volume up too high! There's a reason you're required to wear the hearing protection, it's because loud sound will cost you your hearing. If you drill into muffs, you may change their attenuation enough to make them inadequate for the noise level you're in, and if you crank the music up too high, it becomes your noise source.
Keep in mind that while hearing protection isn't required until 90 dBA (time weighted average, so an 8 hour/ day exposure), decades of research have indicated that risk begins around 75-80 dBA, and the equivalent energy doubles every time you go up 3 dB. So if you spend your day working in noise just below OSHA's limit without hearing protection, and then come home and pound away with these, you will end up damaging your hearing. The hearing loss from noise is permanent, incurable, and comes with a bunch of other horrible symptoms like tinnitus (ringing), diplacusis (one ear hears tones differently than the other, which will make all your music sound like a heap o' suck), and hyperacusis (louder sounds make you cringe in pain, so no more concerts). Oh, and just for funsies? Too much loud sound also increases your risk of heart disease, ulcers, and colitis. Yay, don't those sound like a good time?
I'm not telling you not to enjoy your music, or even not to make these...if they get you protecting your ears while mowing the lawn, DJing, or using the miter saw, awesome. As long as you don't crank the volume too high, these should beat the heck out of nothing, and Peltor is a very solid brand. But I've spent quite a few years seeing the damage done by excessive noise, fitting hearing aids on some shockingly young people, and having to explain to them that we have no cure, the ringing doesn't go away, we can't fix the hearing, those hearing aids are the best we can do, and they're limited because the sound still goes through those damaged ears. By the time most people realize that yeah, loud sound really is destroying their hearing, they already have significant damage.
Oh, and to the guys who want these to sneak music into work: you might check on your state's worker's comp laws first. In some states, deliberate non-participation, failure to use required hearing protection, etc. can make you ineligible for compensation if/ when you develop hearing loss. The thinking seems to be that you're an adult, and if the employer has done their best, and you've sabotaged their efforts, well, kinda your own fault if you lose hearing. Which means you'll be popping the $3-8k for hearing aids every 3-4 years.
ON the plus, a lot of those hearing aids will play your music via Bluetooth.
helifino 13 years ago
brainmist 11 years ago
mrmerino 11 years ago
Satweavers 13 years ago
kenyabob 12 years ago
pmn9393 11 years ago
DrJekyll14795 11 years ago
vegatek 12 years ago
Thank you TimAnderson!
ajleece 12 years ago
The Old Fart 12 years ago
JakeBlanton 12 years ago
Phoghat 12 years ago
chillenfresh 12 years ago
photoguy7 12 years ago